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AMAZING WAYS TO
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REAL-LIFE PROJECTS TO INSPIRE YOU 15/05/2017 11:07
Contents EXTENSIONS SPECIAL 2017 IN THIS ISSUE 11 13 108 129 147 162
EDITOR’S LETTER Welcome to our special edition KEVIN MCCLOUD Our editor-at-large on the pros and cons of building an extension SUBSCRIBE & SAVE Get the first three issues for £3 COMPETITION Win £5,000 of Veneer Stone A TO Z OF ARCHITECTS AND DESIGNERS Our comprehensive listings guide EYE CATCHER A home in Sydney gets a striking kitchen extension
PROJECT PLANNING 20
25 28 32 35
GETTING STARTED: THE BASICS The essential steps for the smooth running of your project PLANNING ESSENTIALS How to navigate the latest planning regulations CHOOSE A DESIGN Choose the best extension style for your project FORM AND FUNCTION What’s the best build system for your extension? 10 EASY WAYS TO MANAGE YOUR BUDGET Careful planning will ensure you stay on budget BUILDING THE DREAM Sourcing the right team is key to a successful project
INSPIRING EXTENSIONS 44 48 52 54 58 62 64
ANOTHER ANGLE An outdated conservatory becomes a light-filled space BACK IN BLACK A bold design adds drama to this traditional home MODERN MASTER An 80s extension is replaced with a contemporary addition CHANGE OF PLAN A full-width addition transforms this London home A LIGHT TOUCH An impractical layout becomes a family-friendly space SPREADING THEIR WINGS A Victorian terrace gets a better connection to the garden GOING UNDERGROUND Digging down maximises a mid-terrace house
CLEAR VISION A striking glazed light well is the hub of this Regency terrace 72 SIDE ORDER A conservatory is replaced with a modern entertainment zone 76 TIME AND PLACE This sensitive side extension references its heritage 80 ON THE LEVEL An open-plan room connects indoors and out 82 MAKING LIGHT WORK OF IT A side return opens up this Oxfordshire home 84 THE SKY’S THE LIMIT The only way is up for a Japaneseinspired loft conversion 88 BRIGHT CREATION A loft addition creates two additional bedrooms 90 TOTAL UPDATE An extensive redesign creates an impressive home 92 ROOM WITH A VIEW Extensive glazing makes the most of the stunning views 96 SMART CONNECTION A multi-height addition increases light and space 100 DOUBLE VISION A joint development in London results in two successful projects 104 THINKING INSIDE THE BOX A cork-clad garden room is the perfect craft space 106 QUICK CONSTRUCTION This prefab timber structure creates much needed extra space
PROJECT GUIDES 112 MODERN GLAZING Modern glazing designs allow you to enjoy your extension all year 116 HARD FLOORING The latest floor coverings will transform your new addition 119 EXTERIOR SURFACES Your choice of external materials will define your extension 122 HEATING OPTIONS How to create a warm and thermally efficient space 125 SMART LIGHTING High-tech lighting will transform your extension 131 CLEVER KITCHEN EXTENSION PLANNING Smart ideas to help create your dream kitchen 136 MAXIMISE YOUR BATHROOM DESIGN How to make the most of your new bathroom space
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SUBSCRIPTIONS Grand Designs magazine is published 13 times per annum and will be delivered to your door. Phone 01293 312 154 to place your credit card order, or email subscriptions@ inter-media.co.uk. Annual subscription rate: UK £55.90. Europe £65. Rest of the world £95. Printed by William Gibbons (williamgibbons.co.uk). All rights reserved. Reproduction in whole or in part without written permission is strictly prohibited. Text and picture material is sent at the owner’s risk. All prices and information correct at time of going to press. Grand Designs magazine is published by Media 10 in association with Channel 4 and Boundless. Grand Designs is a registered trademark of FremantleMedia. Based on the television programme Grand Designs produced by Boundless (part of FremantleMedia UK) for Channel 4. Licensed by FremantleMedia Enterprises (fremantlemedia.com). © 2017. ISSN 1742-0695
Welcome Choosing our top 20 extension projects across the UK for this special issue has been both rewarding and inspirational. As we window-shopped our way through architects’ and designers’ websites looking for the latest and most innovative ideas, we felt spoilt for choice, but excited at the techniques and designs on offer to homeowners. However, selecting the design of your new extension is just the start of the story. From raising the necessary funds to ploughing through bewildering planning laws and coming up with the dream team that will carry out the work, there’s a long list of tricky decisions to make. Hopefully, in this issue we’ve made it easier for you. We’ve selected an array of different renovations and styles, from Brian O’Tuama’s chilled-out basement creation in a former London bomb shelter (p64) to a side extension with a difference in Dorset (p72). We love how this detached Victorian house has been reinvigorated by local firm RB Studio with a glass extension so it feels better connected to the garden and landscape. But one of the standout projects is Clay House by Simon Astridge. Designed for his Japanese client, the loft addition created the space for a kitchen, lounge and dining area with enviable views of the north London skyline. Winner of this year’s Don’t Move, Improve! award, it gets its name from the layers of earth applied to the walls. Turn to page 84 to see for yourself. Finding the perfect products to finish off any project can be tricky and time-consuming, but the projects section – with eight informative buyer’s guides – is a must-read with solutions for all your needs. From the latest in exterior surfaces to heating, lighting and glazing, you can discover the latest materials that will help transform your extension from mere additional rooms into a beautifully designed space that’s a joy to live in.
AMANDA COCHRANE, ACTING EDITOR
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EXCLUSIVE | Column
Kevin McCLOUD Our editor-at-large asks why the thought of undertaking renovations on our homes can seem so alarming
Below A two-storey extension on this London end-ofterrace house created more room for a kitchen and living space, with external and internal steps connecting the two zones. The project, by Quartet Architecture, cost approximately £1m (020 8704 0804; quartet architecture.com)
henever I’ve moved house, remodelled or built a room, the experience has never been pleasant. In fact, I’d say it has been downright traumatic. Which leads me to wonder why converting the attic or installing bi-fold doors into your downstairs toilet should be as unnerving as constructing an entire house over three years. The conclusion, I think, is that we shouldn’t draw a distinction between an extension, loft conversion, restoration project or a white slab new-build. Whether we’re building a 14-bathroom manor house with its own helipad or just adding a bit onto our kitchen, the same rules apply:
There will be a lot of irritating dust and your stuff will get shunted around so you can’t find any of it. n The washing machine will be out of bounds for several days a week. n People will walk unannounced into your bedroom in big shoes and ask you incomprehensible questions about breather membranes or socket positions. You’ll have no personal space any more. n You will wake up one day with no money. n Hobbies, socialising, holidays, lounging on the sofa and TV are all going to disappear from your life. n Life is clouded by a continuous sense of unease. n Children, relations etc find the whole process unnecessary and stupid. n You won’t experience any peace and quiet. There are probably more, equally aggravating things about building, but I’m not particularly interested in hearing about them as this list is bad enough. What is equally depressing and surprising is that some of the experts don’t consider moving house or building to be all that stressful. The Social Readjustment Rating Scale, developed in 1967 by psychiatrists Thomas Holmes and Richard Rahe, lists the great life events according to the stress responses they produce. For example, the death of a spouse scores 100 points, whereas a minor violation of the law scores only 11. Moving house appears relatively low on the list in 32nd place. The stress of a large mortgage sits at number 20, while a moderate mortgage, if such a thing exists, comes in 37th place. A change in living conditions ranks 28th, which is the closest thing to building work you’ll find on the scale. But this research dates back to 1967, which was a time when building involved simple arithmetic: single-skin walls, single glazing, single figures. By the late-1970s some more sophisticated ideas were being proposed. I like Proshansky’s 1978 notion of place-identity, which is defined as ‘a substructure of self-identity consisting of memories, ideas, feelings, attitudes, values, preferences, meanings, and conceptions of behaviour and experience that occur in places that satisfy an individual’s biological, psychological, social and cultural needs’. The thing that precedes place-identity is apparently place-dependence, a sort of comfort and stability that n
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‘Building work is partially a threat to all that is secure’ comes when a place meets an individual’s needs and helps them to achieve their goals. As a result they want to stay there, and the longer a person remains, the greater the likelihood that it will be incorporated into the place-identity structure, especially ‘if that place also provides the individual with feelings of distinctiveness, continuity, self-esteem and self-efficacy’. This all makes sense. Proshansky and his colleagues drew attention to the fact that many scholars only describe people as being aware of their sense of place when their habitat is threatened in some way. They went on to say that there is little conscious thought given to our homes on a daily basis. I like this analysis because it implies that the experience of building work is partially a threat to all that is secure, firm and positive in our lives – as if when we build, not only are we making anew and redefining a new ‘us’ through a new building, we’re also reassessing and discarding some of our old ‘us’. Think of your life and your home as a set of pictures fixed to a green baize pinboard with drawing pins. There are strings connecting these pictures to each other and to a map, and to a written diary on scraps of paper. When we move or alter our houses, all the pins work loose and the strings start to flap around uncontrollably. It’s as though all the firm connections start to dissolve and float away, making us feel rootless. This may all discourage you from ever doing building work at all, which would be a bad thing. The experts – a good architect, surveyors, craftsmen, even the occasional fine builder – are trained not only to provide their technical services, but also to lend support and guidance. The process itself can be as energising as it can be deracinating, and it is usually short, so the rootlessness doesn’t last for long. The major life stresses of Holmes and Rahe’s depressing list such as bereavement, divorce and illness are pretty irreversible, whereas building can simply be a disconcerting nuisance. But it can be energising, too. For example, when we build we create something original. When we remodel an
inefficient and cold old bungalow into a warm and contemporary building, we refresh our relationship with that location. Building is an investment of love, money and energy in a place. So when we build we strengthen our bond with our home, and it has to be good for place-identity and placeattachment. It turns out, according to another piece of research in the Journal of Environmental Psychology called Home Is Where The Heart Is (published by Charis Anton and Carmen Lawrence, both of the University of Western Australia), that when these are strong not only does our self-esteem flourish, but community, too. Time to ring the architect then. Before reaching for that book on self-actualisation and bi-fold doors.
Top left The warm feel of Havwoods’ herringbone flooring, £41.94 per sqm (01524 737 000; havwoods.co.uk), contrasts with on trend dark painted cabinetry in this industrial-style kitchen extension Above This staircase design by Gregory Phillips features LED accent lighting to bring out the walnut flooring and highlight the treads (020 7724 3040; gregoryphillips.com)
Could your project achieve creative nirvana, like this home in Devon?
ARE YOU PLANNING A GRAND DESIGN? TV’s Grand Designs is looking for exciting projects to feature on the programme. Does your build fit the bill? To apply, please visit granddesigns.tv/apply
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NEW IDEAS FOR
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PROJECT PLANNING Unsure where to begin? Weâ€™ve compiled everything you need to know to get your extension off the ground, from planning rules to the most popular styles. Plus, find out how to assemble your team and calculate your budget
STARTED 25 PLANNING
PERMISSION 28 WHAT SORT
OF EXTENSION? 32 CHOOSING
A STRUCTURAL SYSTEM 35 BUDGETS AND
COSTING 38 CHOOSING 32
YOUR TEAM granddesignsmagazine.com / EXTENSIONS 2017 19
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PROJECT PLANNING | First steps
GETTING STARTED: THE BASICS There’s much to think about when extending your home, so follow our key steps to ensure your project is a success
This spacious kitchen extension by Welsh Oak Frame (01686 688 000; welshoakframe. com) is built with a combination of glass and oak, and finished with stone cladding on one side and painted render on the other
ith house prices near an all-time high, many homeowners are seeking alternative ways to buy property at an affordable price. According to Moneysupermarket.com it costs roughly £11,000 in fees to move to a home worth £300,000, so it’s hardly surprising that many of us are choosing to upgrade our current homes by extending instead. Extensions are an option for the majority of homes – they can suit large detached dwellings just as well as smaller semis or terraces. In urban
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areas where housing is dense, an expansion project is one of the easiest routes to achieving your dream home, especially if this can be done under permitted development (PD), a rule allowing extensions of a certain size to be built without planning consent. Considering an extension but don’t know where to begin? Here are the four most important things to think about before you start.
Preliminary details Pin down exactly what you want from your build project at an early
stage. An extension is a big financial investment, so it’s essential that you put a lot of thought into even a small project. Ask yourself whether your design is the best use of space. If you are planning a rear extension, do you want a single storey, or is there more potential to be unlocked in a multi-height expansion? How will the new space be used, and how will it connect to the rest of your home? It’s critical to consider practicalities such as access requirements, too. If you are in a terraced home, how will builders and materials be transported
MERGING STYLE This kitchen extension in West Yorkshire ties in with the rest of the original stone home. Large folding door panels from Express (0800 121 4809; expressbifolds.co. uk) flood the kitchen with light. The XP View bi-folding door costs around £1,150 per panel
DOUBLE UP Model Projects (020 7095 8833; model projects.co.uk) built up and out in a two-storey extension to double the size of this Hampshire home. The new space is finished with timber cladding and large expanses of glazing. The project cost £290,000
to the back of your house? Will the disruption mean that you have to move out for the duration of the project? If so, what are the associated costs? Make sure you have the answers to all of these questions before you start planning.
Assess your finances There are a number of ways to fund your project. In an ideal world you would finance it using savings, but in reality this isn’t always viable. You can take out a personal loan of up to around £30,000, which can work
well if this is enough to fund your development along with your savings. Factor in the interest that you will be paying when you determine whether or not this is a cost-effective option, and make sure you always keep on top of repayments. An alternative is to remortgage your property. This will allow you to pay off the original mortgage and, in theory, leave you with enough cash to finance your extension. If you can’t raise sufficient capital this way, then another solution is a stage payment mortgage. ‘This means that funds are drawn down at key points in your build,’ says Rachel Pyne from BuildStore (0345 223 4888; buildstore.co.uk), which offers a product called Accelerator that releases money at the beginning rather than the end of each stage of your project. ‘It means you have access to cash when you need it.’
Design guidance To get the best out of your project, its design has to be a key consideration. Some homeowners make their own plans and use the expertise of a builder and structural engineer to get the details right. Others employ a specialist package company focusing on design and build projects, or hire a design professional or architect. ‘Extending your property gives you the freedom to create a bespoke space that completely alters the flow of your home’s original layout, so using an architect or similar professional to make the most of your plans can be granddesignsmagazine.com / EXTENSIONS 2017 21
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PROJECT PLANNING | First steps
invaluable,’ says Kathryn Mansi of Model Projects (020 7095 8833; modelprojects.co.uk). ‘They’ll use design techniques that you may not have thought about, and will certainly know the best ways to configure different zones to make the most of living spaces and views.’
The contemporary extension to this Grade II-listed home by IQ Glass (01494 722 880; iqglassuk.com) was designed as a transparent box to ensure that the original walls of the cottage were visible through the new addition. The cost of the glazing was £28,273
MAXIMISE SPACE Zinc House by Simon Astridge Architecture (020 3432 9772; simon astridge.com) is a full internal refurbishment with three new extensions on the ground, second and loft levels, which are all clad externally in black zinc. The project cost £300,000
ELEGANT ADDITION Permitted development rights were used to create a ground-floor extension to this semi-detached Edwardian house by Mulroy Architects (020 7267 5123; mulroy.info). The project contains a large glazed dining room, and cost in the region of £240,000
BUILDING REGUL ATIONS Whether you’re building under PD or have planning consent, your project will need Building Regulations approval. Here are the need-to-know basics:
Building Regulations set minimum standards for
design, construction and alterations to almost every building. They are developed
Consider structural components
by the Government and
The materials you use to build your extension will have a huge bearing on the overall aesthetic of your addition, so it’s a choice you need to make early on. Your architect will be able to come up with the scheme that will best suit your home. You’ll need to decide whether you want to mimic your home’s original material and create a seamless link, or build something that stands out and looks completely different. Extensions built using timber frames can be covered or clad in virtually anything, giving you freedom over the finished style. For something more dramatic, a glazed addition will flood your home with natural light, while an oak frame will provide instant character. GD
you must adhere to them.
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approved by Parliament, so
They cover a whole host of elements including safety,
ventilation, conservation of fuel and power, and even drainage.
For your project to meet Building Regulations you
either need to send a Full Plan Submission or a Building Notice to your local authority.
A Full Plan Submission is the best and easiest route
to go down. You pay a fee to the council and a building inspector will visit your site at various stages, to review and ensure that the work is meeting these standards.
WORDS ANNA-MARIE DESOUZA PHOTOGRAPHY WILL PRYCE; CHRIS SNOOK
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PROJECT PLANNING | Getting permission
PLANNING ESSENTIALS If you want to increase the size of your home, you need to consider a variety of factors when it comes to planning legislation
hatever the size and scale of your building project, you need to make sure to check out the relevant planning regulations before you start construction. You may have to submit an application to your local council prior to development, although in some cases you will be able to avoid this by building under permitted development (PD). Whatever the case may be, it is advisable to contact your local authority to discuss your project at an early stage – be it an extension or a renovation – and meet with a planning officer to get up to date on your local authority’s requirements. Also, equip yourself with a basic knowledge of the planning system and your council’s development plan, as this will put you in the best possible position to come up with a scheme that your local authority likes.
Planning applications: the basics Many large extension projects require planning consent, which you will have to apply for via your local council. This entails sending over plans and possibly compiling reports, filling in forms and paying the council the correct fee. You can do this yourself if time is no barrier, but if you’re a novice and the scheme is complex it would be wise to hand over to a professional planning expert or your architect. Residential planning applications can be divided into two camps: if you’re extending, making alterations or want to erect a garden building you will need a Householder application, while Detailed or Outline applications are
GARDEN LINK Applying using permitted development can enable you to expand your home without having to battle through planning. The first phase of this build in west London by Model Projects (020 7095 8833; modelprojects. co.uk) was to add a light-filled rear extension, for around £150,000.
required for new builds, conversions and replacement dwellings. For Householder applications, if an extension is proposed detailed plans must show what’s currently there and precisely what you want to add. Once submitted, your application should be decided within eight weeks. A case officer will validate it (a process in which the content is checked against local and national requirements) and make a site visit, before writing up a report that recommends approval
or refusal. This may sound daunting, but the vast majority of applications for domestic projects are passed.
What is permitted development? Small-scale extensions such as lofts, rear and side additions are a popular choice, not least because they can often be done without having to apply for formal planning permission. Permitted development rights allow homeowners to add single-storey and, in some
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PROJECT PLANNING | Getting permission
WORDS ANNA-MARIE DESOUZA PHOTOGRAPHY CHRIS SNOOK; RUTH DONNELLY
cases, two-storey extensions to their homes without consent, so long as they adhere to the guidelines. If you’re considering a permitted development project, keep these key parameters in mind: extensions must not be higher than the eaves of the existing property; single-storey extensions must be less than four metres high; you can extend terraced or semi-detached houses three metres from the existing property (four metres for detached homes); double-height additions can project three metres from the original house, and side extensions must be less than half the width of the existing property. While scale and positioning restrictions are numerous, there aren’t many limitations in terms of aesthetics. This means that you can create a visually impressive addition, even without planning consent.
Party walls If you want to build close to your boundary line, excavate for foundations near a neighbour or do any kind of work on a wall shared with a neighbouring property, the Party Wall Act makes it a legal obligation to notify your neighbour. ‘You must invite them to agree to the work or appoint a surveyor to draw up a Party Wall Agreement,’ says Steven
If your house is semi-detached or terraced, you’ll have to serve neighbours a Party Wall notice. Doma Architects (07912 883 672; domaarchitects.co. uk) added a small extension to the side of this home in Harrogate for around £102,000.
The materials and style of your project can improve your home’s flow. Arboreta (0800 288 8333; arboretaoak.com) created this oak-framed, mansard roofed orangery extension for around £71,000.
SPECIAL PERMISSION Projects in a conservation area or with listed status will need special consent, so contact your local council to follow the correct procedure. Witcher Crawford Architects (01962 813 344; witchercrawford. co.uk) extended this historic, Grade II-listed home for around £200,000.
Way from Collier Stevens Chartered Surveyors (020 8295 1200; collierstevens.co.uk). ‘This document will authorise the work and include a record of the condition of your neighbour’s property. It will also set out how the work will be done to minimise impact to your neighbour and how any damage to their property will be repaired.’ You must also notify all of your neighbours with more than 12 months’ interest in the adjoining property, so even if these are rental properties you
will have to inform the tenants as well as the building’s freeholder. In most cases, notices need to be served two months before you start to allow the agreement to be drawn up, and work cannot start until the agreement is signed. ‘In the worst case, a neighbour could seek an injunction preventing you from proceeding until an agreement is in place,’ advises Way. ‘Plus, should you cause any damage, your neighbour could take legal action to ensure the repairs are carried out.’ GD
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Just one touch tells you all you need to know Operate a Schueco sliding door and the rigidity, effortless action and solid clunk as it closes proclaim one thing: quality. Systems include doors that slide, lift-and-slide and use frameless technology to deliver outstanding panoramic views. Also available: slender-profiled windows, slimline faĂ§ades and super-secure entrance doors, all with the highest levels of insulation that can be up to Passive House standard. For German engineering made in Britain, thereâ€™s only one name. For more information and your nearest Schueco Partner installers: www.schueco.co.uk
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PLANNING | Extension types
CHOOSE A DESIGN There are a multitude of ways to extend your home. Assess the pros and cons of each solution to determine which one is right for your project 1 LOFT
2 SIDE RETURN
Whether you convert an existing attic or add a new storey, building upwards is an ideal way to create a private sanctuary. The extra staircase offers a degree of separation from the rest of the house, which is perfect for a home office, master suite or teenagers’ den. Lofts benefit from the best views and natural light, plus, they’re likely to add value to your home. Consider head height before you begin – you may find that you have to lower the ceiling of the floor below. Lofts have a tendency to overheat so good ventilation is important, too.
Simple but effective, filling in the sliver of land beside a typical terraced house can turn a narrow kitchen into an expansive, sociable, open-plan space. While you may not be adding a lot of room, a side-return extension can transform how your home works. Bear in mind that if you’re building right up to your neighbour’s boundary then you will need a Party Wall Agreement. Plus, smaller doesn’t mean cheaper – removing an external side wall requires significant structural work.
A new basement adds a whole extra storey to your home, so can be an economical alternative to upsizing. However, it is also the most difficult way to extend – basements are costly, messy, take a long time and are disruptive for you and your neighbours. You’ll also need a range of specialists skilled in waterproofing, structural engineering and excavation. Don’t underestimate the importance of height and light – you’ll have to dig at least 2.5m deep and include plenty of light wells to keep the space feeling pleasant and inviting.
Minimum space required Around 20sqm for
Minimum space required Around 25sqm
Minimum space required Around 45sqm to
a bedroom and small en suite. You will also
(15sqm for the existing kitchen and 10sqm
add another level beneath a typical terraced
need an extra 2.25sqm for stair access.
for a new dining area at the side).
house, or 20sqm to convert an existing cellar.
Expect to pay Around £2,000 per sqm.
Expect to pay Around £2,500 per sqm.
Expect to pay Between £3-£4,000 per sqm.
Copper-clad loft extension by Poulsom Middlehurst Architects (poulsom middlehurst.com)
1 2 3
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Side return project in west London by Model Projects (modelprojects.co.uk) Basement conversion in south London by Ensoul Interior Architecture (ensoul.co.uk)
Nicolas Tye Architects (nicolastyearchitects.com) designed this rural single-height project
4 5 6
WORDS EMILY SEYMOUR PHOTOGRAPHY CHRIS SNOOK
This multi-height project in Guildford is by Adam Knibb Architects (adamknibbarchitects.co.uk)
R2 Studio (r2studio.co.uk) built this petit garden yoga retreat
4 SINGLE HEIGHT
5 MULTI HEIGHT
6 GARDEN STUDIO
These are best for post-war homes with wide proportions. Removing the original external wall will create a large, open-plan new living space; alternatively, minimise intrusion by building a self-contained room. Don’t forget to consider the size of your garden – as a rule of thumb, a new rear extension shouldn’t take up more than half of your outdoor space. Remember that the rooms in the middle of your home will get darker, so extra glazing will be necessary to bring the sunlight inside.
With no structural work involved, garden rooms are an affordable way to increase your home’s total size with minimal disruption by providing a home office or guest house. Many companies offer kit-home-style packages that are quick to install, and depending on the size, height and intended use, they often don’t need planning permission. They will eat into your outdoor space, so ensure you leave enough for use. Base costs are low, but they can increase if you add services like plumbing or a phone line.
Minimum space required 20sqm for
These extensions most commonly provide a new kitchen-diner with an extra bedroom or bathroom on the top level, although leaving a void between the floors can also create a striking double-height space. The economies of scale of a two-storey extension can make materials and labour cheaper. However, planning permission can be difficult to obtain, because double-height extensions will considerably impact the volume of your home. You should also take into account how your build will affect light and privacy for your neighbours.
a kitchen-diner; 30sqm for a wide new
Minimum space required Around 40sqm
a comfortable office or 20sqm for a bedroom
(20sqm per level).
with a bathroom and kitchenette.
Expect to pay Around £2,000 per sqm.
Expect to pay Around £2,000 per sqm.
Expect to pay Around £1,500 per sqm. GD
Minimum space required There are micro-pods as small as 5sqm, but you’ll need 15sqm for
granddesignsmagazine.com / EXTENSIONS 2017 29
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The Experts in Speciality Timber Products When choosing a material for your project, appearance and performance are of paramount importance. Silva Timber supply the finest selection of speciality timber cladding, decking, fencing and roof shingle products in the UK. Specialising in Western Red Cedar, Siberian Larch, ThermoWoodÂŽ and a range of hardwoods, the range is supported by a knowedgable customer support team, factory pre-finishing and fire treatment services, industry leading website, technical specifications and downloadable BIM objects. For the natural choice, speak to the timber cladding experts.
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PROJECT PLANNING | Building systems
FORM AND FUNCTION From timber and structural glazing to contemporary masonry or straw bales, choosing the build system for your new extension offers a wealth of opportunities
hen designing an extension, there are two main parts to the structure that you will need to consider,’ explains Jo Edwards from Edwards Rensen Architects (020 3227 0122; edwards-rensenarchitects.co.uk). ‘These are the section holding up the extension and the newly opened-up existing walls, and the structure supporting the rest of the house.’ Your personal taste will have a large impact, as different types of build have contrasting styles, whether you opt for a highly glazed space or a timber-framed system. ‘For maximum thermal efficiency timber is the way to go, but if you want a more traditional look and feel then masonry is a better fit,’ says Adam Jannece at JCJ Construction (01273 857 886; jcjconstruction.co.uk).
Timber frames There are a number of advantages to using oak framing. The structure is usually built off-site and can be erected within seven to 10 days, depending
on the size of the project. ‘In terms of speed, it’s a safer option than a masonry build, where progress can often be impeded by the weather and you need to store all the materials onsite,’ says Mark Jones at Welsh Oak Frame (01686 688 000; welshoakframe.com). ‘Oak is ecologically sound, carbon neutral, renewable and non-toxic, too.’
Masonry Most contractors know masonry inside out, so it’s not difficult to find a professional who is well versed in using this system. It’s the obvious choice if you live in a traditional brick building and want to create a seamless link between old and new. Typically the cost of a masonry extension ranges from £1,500 to £2,500 per sqm, but the upper end of the scale can be considerably more depending on the finish. Brick and block constructions needn’t be boring, either – a good designer can suggest ways to play with different patterns and use stocks
OLD AND NEW This ultra-modern glazed box addition successfully distinguishes itself from the original cottage. (01865 426 990; kitchen architecture.co.uk)
SUPER STEEL This highly contemporary extension by McLaren Excell paired existing concrete floors and walls with a frame in timber and corten steel. (020 3598 0673; mclarenexcell.com)
in various hues to create something distinctive and modern.
Structural Insulated Panels (SIPs) ‘An SIP system is a great solution for the walls and roof of an extension,’ explains Matthew Evans from Potton (01767 676 400; potton.co.uk). SIPs are cut to size and the openings for electrics and other services are already factored in, reducing the time spent on site later on. The structure can be weatherproof in a matter of weeks and SIPs can also help reduce your heating bills. ‘Kingspan’s 142mm-thick TEK Building System panels can achieve U-values of just 0.17 W/m2K without the need for additional insulation, and its unique jointing system minimises unnecessary air loss,’ Evans continues.
Insulating Concrete Formwork (ICF) ICF is a site-based system, in which polystyrene blocks are placed on top of each other and filled with 32 EXTENSIONS 2017 / granddesignsmagazine.com
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THINGS TO CONSIDER
If you’re designing a glazed box think about how much
privacy it will offer you, and whether the existing build is thermally efficient enough to warrant the additions or not.
Can you comfortably afford the scheme? If your
initial design is too expensive, your chosen professional may be able to suggest ways to alter the system that will help reduce the price.
Can you really do it yourself? Straw-bale
systems and ICF construction look simple enough, but unless you’re entirely confident it may not be worth putting your own skills to the test.
concrete. The system boasts excellent thermal performance and structural strength. ‘It is naturally draught-proof and has great acoustic qualities, at a similar cost to traditional masonry construction,’ explains Alan Wheeler from Polarwall (01392 823 300; polarwall.co.uk). ‘It can be built by anyone with basic carpentry skills.’ You will need direct access to the rear of your property, to serve the machine that pumps concrete. Factor the cost of the pump hire into your budget, as it may not be cost-effective for a small project.
WORDS IFE ADEDEJI
Straw bales This traditional method was once a widely used technique. Straw bale structures are thermally efficient and environmentally friendly, but nowadays there are very few experts in this field. If you’re keen on saving money, it can be a great DIY option – organisations like CAT (01654 704 966; cat.org.uk) offer short courses to give you the skills you need. There are two main
methods: timber-frame infill and load bearing, where the bales are stacked on top of one another. Both options are then rendered with lime or clay-based plaster. A hybrid of the two has also been developed, which enables you to include larger expanses of glazing. Experts such as Straw Works (strawworks.co.uk) can provide prefab straw-bale buildings.
Gundry Ducker combined sooty bricks with Douglas fir to respectfully extend this threestorey home. The masonry annexe is a modern take on a typical conservatory. (020 3417 4895; gundryducker.com)
Structural glazing Glass is key to creating a bright, sunfilled space in your new extension, and there are many ways to incorporate it into your build. Structural glass beams and vertical fins can support glass roofs and walls to create a glazed box and luminous space. ‘A glazed roof is an easy way to bring glass into your structure while maintaining privacy,’ explains Rebecca Clayton from IQ Glass (01494 722 880; iqglassuk.com). ‘Full glass walls are also available and can be strengthened so they don’t need frames. These are fixed to the floor and building with hidden steel angles.’ GD granddesignsmagazine.com / EXTENSIONS 2017 33
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PROJECT PLANNING | Budgeting
EASY WAYS TO MANAGE YOUR BUDGET Careful planning at the start will help you make long-term savings
he $64m question – although hopefully it will be less – is this: how much will the project cost? The answer is never straightforward for two reasons. Firstly, you have to decide how much you want to spend, and that’s a matter of resources, aspirations and reality checks. Secondly, you have to stick to the budget, but every project yields nasty surprises and a frequent temptation to upscale everything. A robust budget needs detail, which means making a long list of decisions about the nature of the project, from who carries out the work to the individual materials used throughout the build. Here are our top 10 tips for setting – and sticking to – a budget.
a realistic 1Set benchmark Research is critical at the beginning of a project, and that means making lots of enquiries. ‘Asking around about costs is important when setting a budget,’ says Fiona Kirkwood, director of London-based architecture and design firm Kirkwood McCarthy (020 7249 8361; kirkwoodmccarthy. com). ‘Whether this involves speaking with industry professionals or suppliers, or chatting with friends who have undertaken similar work, ascertaining a realistic benchmark will help ensure your budget is practical and realistic to the scope you have in mind.’
Create a breakdown of costs
List each element of the project and give it a figure. The biggest expense will be for the building work, but don’t
forget to cover all other costs – legal fees for obtaining planning permission, an amount for key appliances and materials, decorating and landscaping the garden. It can be complicated. Can you afford the pricey marble floor tiles? And if so, have you factored in the cost of the grout, adhesive and sealant, as well as the cost of laying them? ‘Be realistic,’ says Simon Graham, director of Yard Architects (020 7407 8303; yardarchitects.co.uk). ‘Put together a spreadsheet before starting, and include all the fittings you want. Set concrete budgets for big things like kitchens and bathrooms. Carry out detailed research about building costs for the type of project you are doing – there are helpful calculators online.’
3Think to the future
You love that beautiful bathroom suite complete with digital shower that connects to the internet of things for total bathroom luxury. But to trim the budget you decide to go for a low-cost, pared-back version instead. Will this
be a huge regret? Or a false economy you later rectify at great expense? Think carefully about the space you are creating, how you want to use it and where the money is best spent. Be brave and focus the budget, where possible, on areas that will make a difference. Tiles are expensive, so choose the exclusive range in restricted quantities for a splashback, or an accent colour on a bathroom wall.
sure the 4 Make quote includes VAT It sounds too obvious to mention, but some costs you are given will exclude VAT, and an extra 20 per cent added to a bill is a very nasty surprise. ‘Don’t forget to add VAT if applicable – this is often overlooked but it’s a big proportion of the cost. Include fees for professionals, Building Control charges, etc,’ adds Graham.
COST: £300K A Victorian townhouse that had fallen into disrepair was renovated, refurbished and remodelled into a large modern family home by Studio 30 Architects. Work included a loft conversion used as a studio, a double-height glazed extension at the rear with sedum roof, and children’s playhouse in the garden. (07701 061 109; studio30 architects.co.uk)
5 Request a contract Once you have a detailed list of requirements and have turned it into
granddesignsmagazine.com / EXTENSIONS 2017 35
PROJECT PLANNING | Budgeting
the brief and drawing for the job, it’s time to get a contract. To help, there are standard contracts designed for domestic projects available from RIBA – the Royal Institute of British Architects (020 7580 5533; architecture.com). ‘Get competitive builders quotes and ensure they have priced for everything you want. It is easy to overspend quickly if the builder doesn’t have detailed drawings or a specification of everything that should be included,’ says Graham. ‘Ensure these are part of the contract between you and your builder.’
WORDS BEN WEBB PHOTOGRAPHY STÅLE ERIKSEN; SALT PRODUCTIONS
a 6 Establish contingency Like other laws of nature, the law of a construction project is that nasty surprises happen, so be prepared. ‘Don’t forget to include a contingency,’ advises Graham. ‘A recommended minimum is 10 per cent. Don’t be tempted to omit this to reduce the overall cost, because you will be glad to have a buffer when you start work.’ Start with 15-20 per cent and then reduce the fund as you go through the process phases. As construction proceeds you’ll be able to decrease it further. You don’t have to spend that contingency, so if it isn’t used, consider it found money you can save. This is a great way to feel good about staying on track and coming in under budget.
7Work out a plan
The builder has started and suddenly starts asking you about
The heart of this Georgian home in Crouch End was moved to the back, overlooking the garden. Created by Erbar Mattes, the facade is made from masonry and precast concrete. (020 8123 8192; erbarmattes.com)
COST: £100K A badly built 1960s kitchen has been transformed into a light and airy space, featuring a timberclad extension that contains a porch area and hidden bathroom (07967 011 124; pamphilon architects.com)
details and specific materials. If you aren’t prepared, you may find yourself tearing out work or having to live with something you don’t like. Luckily, you have your list and a plan for the timing of each phase of the build. You know what is needed and when, which means no expensive delays or remedial work.
your 8Trust own instincts Throughout the build, there will be a number of important decisions to be made. If nothing else, you may need to confirm that your plan is robust. However, you may face the temptation to suddenly alter the layout or add more wow factor. ‘Keeping to a budget takes rigour and decisiveness,’ says Kirkwood. ‘Trust the decisions you have made and try to avoid impulsive
last-minute changes to prevent costs creeping up.’
9 Stick to the plan
Every budget is challenged by the desire to do more, and seeing changes occur to your home is addictive. While the builders are here, why don’t we just do the second bathroom, knock down that wall, build a summerhouse and rehang lovely radiators throughout. You’ve made a plan, so stick to it unless you have very good reason to upgrade.
COST: £90K The owner of this small cottage wanted a separate kitchen and living room, and to open up the downstairs. Turner Architects designed and built a piece of furniture that can be moved when the family uses the open-plan space. (020 7207 0835; turner architects.co.uk)
10 Consider trade-offs If you do find you want to increase the budget by including the latest Aga or some artisan floor tiles, then review your costings and see where you can make changes. Quite often, economies can be made without any damage to the overall project. GD
36 EXTENSIONS 2017 / granddesignsmagazine.com
PROJECT PLANNING | Choosing your team
BUILDING THE DREAM Sourcing the right team for your building works is critical to the smooth running of your project
aking major changes to your home can be a daunting prospect, but the experience can also be rewarding and lead to exciting lifestyle changes. The first phase of the project is to establish the budget and vision; the second is the build and making the dream a reality. However, both require research and planning. The trick – much easier said than done for first-time developers – is to assemble a crack team of tradesmen and professionals, who can advise you from start to finish and carry out the work in an efficient way. Just remember
ALT_EXT17_P6. Planning_Choosing your team_DH.indd 38
that you’re in charge – it’s your home and you’ll have to live in the result. The UK is in the middle of a space race that shows no sign of abating. Homeowners are building sideways and up, and digging down in the pursuit of more room in which to work, rest and play. Why fork out on a larger place at an eye-watering price when you can invest cleverly in the untapped potential of your home? Once you’ve decided to expand your living space, more challenging questions will come thick and fast. What, in an ideal world, would you
like to do? Given your budget, what can you do? Carry out some research, compile a list of your requirements – from your preferred interior style to your vision for the use of the new space – and put together a rough brief. Now it’s time to build your team.
Do I need to work with an architect? If you’re happy for your project to be a simple design or are confident in your brief, then you may not need to engage an architect directly. You can rely on your builder’s architect for
MAKE THE CONNECTION The addition of a side extension, designed by Yard Architects (020 7407 8303; yard architects.co.uk) has completely reconfigured a dark basement flat in Westminster, offering a better connection with the courtyard garden
TOP SECRET A Victorian semi in Muswell Hill has been modified with a loft redesign, which includes an en suite and built-in storage. Created by Kirkwood McCarthy, tongue-and-groove lining in the stairwell reveals a hidden door to the master bedroom suite. (020 7249 8361; kirkwood mccarthy.com)
any drawings needed for Building Regulations or planning approval; another option is to use a design and build company that offers a full service. But if you want something more personal – a creative use of space designed for your lifestyle – then an architect will make a big difference. ‘A good architect will work with the client to deliver a highly creative and pragmatic scheme, which should always be a bespoke solution that responds directly to the site context and brief,’ says Jon Duffett, director of London practice Yard Architects. ‘Working with an architect should be a highly personal and enjoyable experience, resulting in the delivery of a genuinely life-changing home.’
What does an architect offer? It’s the architect’s job to organise space and think about how you’ll live in your new extension. A good architect can pick up on things you might not have thought of, like where the sun rises or if you have an outside view that could be a focal point. They’ll also consider more mundane but important things, such as where you’ll store the hoover. If you’re trying to stretch a budget, it can be tempting to forgo architects’ fees. You could, for example, hire an
interior designer to help create your vision and employ builders to carry out the work. But is this a false economy? Given architects offer a full range of services, from project management to design, the better question is this: how much should I use an architect? ‘All architects have slightly different approaches in terms of the level of service they provide and the costs, so shop around,’ advises Duffett. ‘Most provide a range depending on the scale, from a full service where they take care of the whole project, to a partial service involving the production of concept and planning, and perhaps a Building Regulations package.’ Those wanting the highest standard should consider an architect for a full service, although the additional fees will be recouped in the value that’s added to the project. Picking the right person is also important, so an initial meeting is advisable. Some architects are free for the first meeting but others may charge £80-100 for an hour’s consultation. Check out the Royal Institute of British Architects (architecture.com) to find professionals with the skills to suit your project, and don’t forget to ask for references. ‘Working on people’s homes is an intense and personal experience, so it’s vital you get on with your architect,’ says Duffett. ‘You should trust them, too, which comes through building and maintaining that good relationship. We’ve found many clients become friends over the course a build.’
Finding the right builder for your project Everyone fears hiring a cowboy operation, but follow some simple rules and you can ensure you get a reputable company that will carry out the job to your satisfaction. The golden rule is to research. ‘A personal recommendation from someone you trust is still the best reassurance,’ says Sarah McMonagle, Director of External Affairs at the Federation of Master Builders (FMB). ‘Make sure the advice is relevant by asking detailed questions such as: what work was carried out? How much did it cost? How long did it take?’ It’s also a good idea to request to check out some previous projects, as granddesignsmagazine.com / EXTENSIONS 2017 39
ALT_EXT17_P6. Planning_Choosing your team_DH.indd 39
times with the builder, and only settle the balance when you’re fully satisfied.’
When do I need a project manager?
BRICK WORKS For this quirky Edwardian end of terrace house, Pamphilon Architects laid bricks in a Flemish bond pattern with protruding headers to complement the fabric of the original building, while introducing a distinctive new look. (pamphilon architects.com)
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WORDS BEN WEBB PHOTOGRAPHY RICHARD CHIVERS; DAVID BUTLER; ROSANGELA; STÅLE ERIKSEN
this will give you the best possible idea whether the builders fulfilled the brief or not. Ask if the builder did the job on time and to budget. Did they meet or beat expectations? What were the best and worst things about them? Enquire about the specific trades. If there is a weak spot then you need to deal with it head on, as this can hold up a job. Produce a written brief, including detailed drawings where possible, and give a copy to each builder who quotes. This is where a full architect’s technical drawing is essential. The more detail you can provide, the better. Ask at least three builders to quote for the job and don’t just go with the cheapest. Look at the breakdown of costs. Ask how they can do the work for the price without cutting corners. Good builders want to do a good job and know what’s needed to achieve lasting quality. However, the best builder is rarely the cheapest. Read the quotes carefully and check they include everything you want done, including the removal of rubbish, site waste, the specification of any fixtures and fittings, snagging and making good after all the work is finished. It’s also sensible to set up a payment schedule. ‘Never hand over large sums of money up front,’ says McMonagle. ‘If everything is agreed in writing you can avoid disappointment and disputes. Ensure you agree start and finish
A folding plane of concrete wraps around the extension of an Arts and Crafts-style home, sculpting a new kitchen and living area. Created by Inter Urban, the herringbone flooring adds texture, while yellow panels bring warmth. (020 3095 9748; interurban studios.com)
You’ve got a vision for the interiors and perhaps a simple architect’s drawing of the new space. Now you want to cut costs by overseeing the project yourself. If you’re new to development this could be a disastrous decision, so it’s essential to have a list of trusted tradesmen to work in a coordinated way. Figure out your timings carefully, as the work may suffer if you cut corners. ‘If you rush a job you may lose out on quality, and the project may end up costing more as there’ll be less time to source materials,’ says architect Guy Morgan-Harris of Morgan Harris Architects (020 8144 8337; morganharrisarchitects.com). It’s essential to have a clear idea of the order in which each job should
be done and the time it will take. Otherwise, there will be frustrating delays as one trader can’t start or finish their work while they wait for another to carry out their work. Seasoned developers will have their favoured tradesmen (and reserves) on speeddial. For a newcomer, it’s vital to do rigorous research into each trader before deciding if they’re right for the job. Word of mouth helps, as does the growing number of websites like ratedpeople.com, which includes numerous reviews to reassure you. It’s also vital to check professional registration and insurance. Electricians must be Part P approved by one of the electrical bodies such as NICEIC, NAPIT or the Electrical Contractors’ Association, and the engineer carrying out work on the gas supply – including servicing boilers – should be on the Gas Safe Register. GD
40 EXTENSIONS 2017 / granddesignsmagazine.com
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Inspiring Extensions Looking for ideas for your new space? We’ve scoured the UK to find 20 amazing projects, full of clever design solutions. Whatever type of addition you’re planning, you’re sure to find something to suit your home
SINGLE HEIGHT ❖ BASEMENTS ❖ SIDE RETURNS ❖ LOFTS ❖ MULTI HEIGHT ❖ GARDEN ROOMS granddesignsmagazine.com / EXTENSIONS 2017 43
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PROJECTS | Single-storey
Part of the original house has been incorporated into the extension to create one large multifunctional space
44 EXTENSIONS 2017 / granddesignsmagazine.com
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The double-glazed sliding doors have slim profiles to maximise views
Another angle Replacing a dated conservatory with a striking new addition has transformed this home into a modern open-plan space
n old conservatory with polycarbonate plastic sheet roofing was far from the ideal addition to a family home in London’s Chiswick. So when Walter Veirs and Shannon Lawder bought the semi-detached property with the aim of renovating the entire house, one of their key ambitions was to replace the unsightly addition with a contemporary extension, creating an open-plan family space at the rear of the house. ‘The ground-floor layout was very segmented with a small kitchen and separate dining room, and then the conservatory was stuck on the back,’ says architectural designer Martin Smith of Holloways of Ludlow Architectural Design & Build, who was tasked with designing the new space. ‘We didn’t want to simply add a box to the back of the house, as the middle rooms would become cut off, so it was important to incorporate some space from the original house into the extension to ensure it would become an integral part of the redesigned ground-floor layout.’ As the rear garden is set at around a 20-degree angle to the house, the resulting design for the extension is a response to the complexities of the site, with the walls and roof echoing the shape of the outdoor space to ensure there is a strong visual connection between indoors and out. ‘Rather than fight against the angle of the site, we decided to embrace it in the overall design,’ explains Smith. To maintain the high ceiling height of the original house while still keeping to planning regulations that restricted the overall height of the extension, the new addition features a vaulted
PROJECT PROFILE Names Walter Veirs and Shannon Lawder Location Chiswick, west London Property Semi-detached Edwardian house Type of extension Single-storey Extension size 37sqm Reason To replace the poor-quality conservatory and create a large open-plan space
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PROJECTS | Single-storey
SPOTLIGHT ON BESPOKE KITCHEN The kitchen units were spray-painted in the workshop to create a hardwearing, matt-textured finish. The doors are painted in Farrow & Ball’s Wevet and the island in RAL 7021 (black grey).
The dining area is set at the end of the extension in front of two angled glazed walls
Kitchens from Holloways of Ludlow start at £30,000 (020 7371 1787; hollowaysofludlow.com).
centre-pitched roof, with each side angled down to a lower point where it meets the boundary wall. Triangular roof windows on either side of the roof bring light into the rear of the space and cast playful shadows on the walls and ceiling. The bespoke kitchen plays on this innovative use of shapes, with the angular island unit forming a striking centrepiece in the new design. With the living area centred around the wood-burning
stove and the dining area set overlooking the leafy garden, each of the separate zones within the extension has a clearly defined use and purpose. ‘It’s a great room to walk into as the natural light and pitched roofline really draw you in,’ says Smith. ‘By allowing the shape of the site to guide the design, we’ve created a really interesting, light-filled space that maximises the potential of the plot.’ GD
EX TENSION PLAN
SUPPLIERS ❖ PROJECT TEAM Design & build Holloways of Ludlow Architectural Design & Build (020 8487 9440; hollowaysbuild.com)
Sliding doors Cantifix (020 8203 6203; cantifix.co.uk) Roof glazing ODC (020 8896 3019; odcglass.co.uk); Velux (01592 778 225, velux.co.uk)
❖ FIXTURES & FITTINGS LOUNGE
Kitchen Holloways of Ludlow (020 7371 1787; hollowaysofludlow.com)
WORDS BETH MURTON PHOTOGRAPHY NICHOLAS YARSLEY
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The extension’s black-painted Siberian larch contrasts with the original brickwork
SPOTLIGHT ON HIDDEN BLINDS To maximise the views of the garden and create a sleek look when they aren’t in use, the electric remotecontrolled blinds for the sliding doors are completely concealed within the ceiling. They cost around £2,600 from Humberside Sunblinds (01469 509 430; humbersidesunblinds.co.uk).
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PROJECTS | Single-storey
Back in black With its use of extensive glazing and black timber cladding, this vast extension is a bold addition to Paul and Michele Barker’s elegant Lincolnshire family home
Aluminium sliding doors open the rear up to the new terrace area and garden beyond
ake a close look at the front of Paul and Michele Barker’s home and you might just spot a sleek black box peeking out from one side of the house. Clad in larch as a modern take on the property’s original mock Tudor detailing, this new structure offers a subtle hint of the impressive contemporary space that now lies to the rear of this redesigned family home. Wanting to add space and improve the connection with their mature garden, Paul and Michele approached ID Architecture to redesign the internal layout of their house and create a roomy open-plan feel. ‘We have a beautiful garden to the rear of our house but we couldn’t see it from the main living areas; the best view was actually from the utility room,’ explains Paul, who runs his own construction company and was the main contractor for the project. ‘There were also lots of separate rooms on the ground floor and the kitchen was very small, so we wanted to look at ways of opening up the interior to create a multifunctional living space.’ Rather than adding a narrow extension to one side of the house, ID proposed a full-width design to maximise the potential of the plot and create a series of interlinked spaces overlooking the garden. ‘The new addition extends slightly further out into the
PROJECT PROFILE Names Paul and Michele Barker Location Healing, Lincolnshire Property Detached Edwardian house Type of extension Rear single-storey Size of extension 120sqm Reason for extending To create an open-plan layout and improve the connection with the outside space Build cost £245,000 (including VAT and fees)
The kitchen-diner is now the main living area, and has ceramic tiles and underfloor heating throughout
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PROJECTS | Single-storey
Floor-to-ceiling bookshelves and dark grey walls give the library a private, enclosed feel
garden at one side of the house to create dual-aspect views from the new kitchen-diner,’ explains Tom Williams of ID Architecture. With the open-plan kitchen-diner at the heart of the new layout, functional spaces such as the utility room and garage are tucked away at the far side of the extension, while the opposite end houses private rooms like Paul’s office and library space, both overlooking a reflective pool. ‘My father died recently and creating a peaceful room to enjoy reading his vast collection of books was important to me,’ says Paul. Externally, the choice of a matt black finish for the Siberian larch cladding is in response to the desire for a modern look, which would contrast with the brickwork but still complement the original property. ‘The square edge larch detailing creates a more streamlined finish that references the black cladding on the house,’ explains Williams. ‘The glazing has also been set back to give a deep reveal to the roof parapet, which provides shade for the south-facing rooms of the extension.’ ‘Redesigning and extending has completely changed the dynamic of both the house and our family life,’ says Paul. ‘There’s so much light and space that we often feel like we’re on holiday in our own home.’ GD
Paul’s office benefits from views of the garden
EX TENSION PLAN
BOOT ROOM DINING AREA GARAGE
SUPPLIERS WORDS BETH MURTON PHOTOGRAPHY ANDREW HASLAM
❖ PROJECT TEAM Architect ID Architecture (01472 211 144; idarchitecture.co.uk) Builder JemBuild (01472 312 377; jembuild.co.uk) Structural engineer Sheppard Consulting Engineers (01724 844 767)
❖ STRUCTURE Glazing Bridge Window Systems (01724 735 623; bridgewindow systems.co.uk)
Cladding Bennetts Timber (01472 350 151; bennetts timber.co.uk)
❖ FIXTURES & FITTINGS Kitchen Wren Kitchens (0345 127 7008; wrenkitchens.com) Ceramic floor tiles Sarah Anderson Whall (01472 826 614; sarahandersonwhall.com) Engineered wood flooring UK Flooring Direct (02476 012 840; ukflooringdirect.co.uk)
LIVING ROOM KITCHEN LIBRARY OFFICE WC
50 EXTENSIONS 2017 / granddesignsmagazine.com
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PROJECTS | One-and-a-half storey extension An inverted bay window is incorporated into the dining area; the steps lead up to a crow’s nest on the mezzanine (right)
Modern master Architect Patrick Lewis has replaced an unloved Eighties extension in London with a contemporary addition that’s sympathetic to its historical ties
his project shows how early discussions with conservation officers at the planning authority can pay off when it comes to gaining consent to add a modern piece of architecture on a historical site. When architect Patrick Lewis at Patrick Lewis Architects was instructed to design a larger kitchen for Anabel Hoult, the owner of a grade-II listed Georgian terraced house, her one request was that he didn’t design a ‘typical white box on the back’. Regular meetings with a conservation officer and positive discussions with the local council meant Lewis gained planning permission within eight weeks. The house already had an awkward Eighties lean-to extension at the rear, which created a long and narrow ground-floor plan with little usable garden space. By knocking it down, excavating the ground floors to create one even level throughout and building a one-and-a-half storey full-width extension in its place, Lewis regained some garden space and facilitated a larger kitchen area for Anabel and her family. Building began in March 2015 with the removal of the existing extension and the underpinning of the boundary walls and back wall
of the house. The new steel and timber extension – with a crow’s nest fixture – was built above. Its shape was inspired by Lord Admiral Molyneux – the name of the street the house sits on. ‘It’s like a tree house that you can climb into from the kitchen,’ says Lewis. ‘It’s also an architectural device. Like a lantern, it picks up light at a high level and distributes it into the kitchen, producing a more intimate dining area.’ The open-plan cooking and dining zone fills the full width of the extension, with the crow’s nest fitted within the mezzanine above. This part of the extension is clad in historical sweet chestnut wood and has a concealed lookout window. Another clever piece of design is the inverted bay window next to the dining area. ‘It can be used for external seating as well as framing the view,’ explains Lewis. Chestnut has been used on all elements of the internal fit-out, which include a handmade kitchen, seating area, handrail and underside of the mezzanine. ‘It’s a reduced palette that I think works well,’ he says. Completed in January 2016, the result is a spacious, modern and light interpretation of how a Georgian house can be enjoyed today. GD
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CASE CASE STUDY STUDY | Ar | xxxx Ar xxxx The flexible kitchen island on wheels was bespoke made. It usually sits in the pantry space, but can be moved when needed
PROJECT PROFILE Name Anabel Hoult Location London Property Georgian terrace Type of extension One-anda-half storey Extension size 20sqm Reason for extending To expand the kitchen area and add a customised crow’s nest-style viewing platform Build cost £250,000
The hatch on the crow’s nest can be opened up to allow more light into the mezzanine level
EX TENSION PLAN
WORDS SOPHIE VENING PHOTOGRAPHY SIMON KENNEDY
❖ PROJECT TEAM Architect Patrick Lewis Architects (020 3095 9707; patricklewis architects.com) Contractors GD Construction (01727 811 442; gd-construction.co.uk)
❖ STRUCTURE DINING AREA
Structural engineer Rodrigues Associates (020 7837 1133; rodriguesassociates.com)
❖ FIXTURES & FITTINGS KITCHEN MAIN HOUSE
Interior designer Gemma Dudgeon Interiors (07737 556 209; gemma dudgeon.com) Joinery Lethbridge Lines (020 8877 0904; lethbridgelines.com)
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PROJECTS | Single-storey Single storey
The former half-width extension has been nearly doubled in size
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Change of plan Clare and Gharad reworked the layout of their London home and added a light-filled extension that created a better flow and link to the garden
hen architect Paul Archer met Clare and Gharad Bryan to discuss their project, the couple had a clear brief to transform the jumbled warren of dark and unwelcoming rooms into a light, airy and inviting interior. Paul Archer Design gained planning permission to knock down the previous extension, which had no connection with the garden, and replace it with a nearly full-width rear addition with plenty of glazing to connect the interior and exterior zones. Inside, the bedrooms remain at the front of the property, with the open-plan living and dining area in the new extension overlooked by the new kitchen. The redesign has created a wide central hallway giving access to an additional WC and separate laundry, while a new TV/playroom is placed just off the open-plan space and leads out to a private courtyard area. ‘It floods the playroom with daylight and adds natural ventilation, which will be ideal if it’s used as a bedroom in the future,’ says architect Richard Gill, who took over the project from Archer. Compromises had to be made on certain elements of the project to keep costs minimal. With a budget of £100,000, Gill chose not to spend unnecessary time and money removing structural walls from the existing flat or lowering the existing concrete floors, instead focusing his attention on the extension. Concrete foundations were dug around the edges of the rear extension, and the steel frame was built on top. Higher land levels on either side of the addition meant that the lower part of the
PROJECT PROFILE Names Clare and Gharad Bryan Location Stoke Newington,
Large yellow doors frame the view, while a side courtyard allows daylight deep into the plan
north London Property 1950s garden flat Type of extension Single-storey Extension size 20sqm Reason for extending To open up and increase the living space in their tired, pokey ground-floor property Build cost £100,000 (excluding VAT and fees)
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PROJECTS | Single-storey
A simple white interior helps to increase the sense of space
room had to be flanked with waterproofed retaining blockwork. Timber infill with thick levels of insulation was added between the steel frame, positioned above the blockwork and set behind a plasterboard finish. Perhaps the biggest impact comes from the setting of the floor in the rear extension, which is lower than in the original flat. The additional height has created a much more spacious open-plan space. The couple would have loved a resin or polished concrete floor but the price was too prohibitive, so they opted for the simpler solution of vinyl floor combined with underfloor heating. The money saved has been spent on the sleek and hard-wearing material, Corian, for
use in both the exterior lip above the yellow doors and for the new kitchen worktop. What’s more, the bespoke yellow sliding doors provide a loftier feel compared with your average 2.1m-high door. As a compromise, Gill didn’t choose expensive super-skinny frames. ‘The doors are yellow, but the actual fixed panes to the side are white,’ he explains. ‘The white edging helps lose the frame and make the structure appear more minimal than it actually is.’ The new extension is now a treasured spot in the flat. ‘The client wanted to keep the interior white, crisp and bright,’ says Gill. ‘Walking into the new open-plan area, you enter a much happier space filled with natural light.’ GD
EX TENSION PLAN
❖ PROJECT TEAM Architects Paul Archer Design (020 3668 2668; paularcherdesign.co.uk) Contractor BuildDecor (020 7998 8145; builddecor.co.uk) Structural engineer Hardman (020 7729 7900; hardmanengineers.com)
WORDS SOPHIE VENING PHOTOGRAPHY LINDA STEWART
❖ STRUCTURE Yellow doors Reynaers Aluminium (0121 421 1999; reynaers.co.uk) supplied by Grabex (020 8685 9651; grabex.co.uk) Courtyard doors and window Velfac (01536 313 552; velfac.co.uk) External surfaces Corian (0800 962 116; corian.uk)
❖ FIXTURES & FITTINGS Underfloor heating OneZone system from Nu-Heat (01404 549 770; nu-heat.co.uk) Kitchen units B&Q (0333 014 3098; diy.com) Kitchen worktops Corian (as before)
ENTRANCE HALL SHARED HALL
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My Furniture.indd 1
A light touch Danielle Cooper and Ben FitzGerald turned an impractical layout into a welcoming family space
dding just 16sqm of space to your property might not sound like it could make a huge difference to the look and feel of your home, but for Danielle Cooper and Ben FitzGerald the effects have been truly transformative. Arranged over four levels, their Victorian terrace home originally featured a lower-ground floor with a small kitchen, a living area to the rear and a bathroom to one side of the space. With only a small window to the front of the house and a set of double doors leading out to the garden, there was limited natural light and limited connection with the outside space. ‘Although we spent a lot of our time on the lower-ground floor, the layout wasn’t particularly family-friendly and it didn’t make the most of the south-facing aspect at the rear of the house,’ says Danielle. ‘When our kitchen needed an upgrade we decided it made sense to look at ways of improving the overall space, too.’ Having worked with MW Architects several years ago when they redesigned the two upper floors of their house, Danielle and
PROJECT PROFILE Names Danielle Cooper and Ben FitzGerald Location East London Property Victorian mid-terrace Type of extension Single-storey Extension size 16sqm Reason for extending To create an open-plan kitchen/dining and living space Build cost £150,000, excluding VAT and fees
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PROJECTS PROJECTS | Single-storey | Single storey
above Adding just three metres of space has enabled the ground-floor layout to be completely redesigned, with clearly defined zones for cooking and dining far left Built from London stock bricks to match the facade of the original house, the extension also features brick arches over the rear openings, mirroring the windows above left A large roof lantern maximises natural daylight in the new extension
SPOTLIGHT ON STEEL-FRAMED DOORS Ben and Danielle plumped for traditional-style glazed doors that are in keeping with the overall look of their home. These double-glazed, steel-framed doors feature narrow sightlines to maximise garden views, and the arched brickwork adds an interesting design detail to the interior space. The three double doors cost around ÂŁ12,000 from Fabco Sanctuary (01903 718 808; fabcosanctuary.com).
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PROJECTS | Single-storey
Fitting cupboards into the recess under the stairs has freed up room for the Silestone Lagoon covered island
Ben were keen to work with the architects again for the second phase of their home renovations. ‘We proposed a slightly unconventional layout for the redesign by placing the kitchen in the centre of the lower-ground floor, as we felt it was possible to get away with having a little less natural light in this part of the space,’ explains architect Melissa Robinson of MW Architects. ‘It made more sense to locate the dining area in the new extension overlooking the garden, where it would benefit from the south-facing aspect.’ The project was completed under permitted development, and the three-metre, full-width extension is a fairly simple brick construction with a timber roof topped with a waterproof membrane. A large roof lantern and three sets of steel-framed double doors bring much-needed light into the space and are in keeping with the
more traditional aesthetic that Danielle and Ben wanted to create when they first contemplated the modernisation. ‘The complicated element of this project related to the structural interventions that were necessary to create the open-plan layout,’ says Robinson. ‘There’s a lot of house to support above this lower level, so there are two steel box frames and two beams running from front to back, as well as a beam supporting the stair edge above the fridge.’ To maximise the available floor space in the kitchen, a walk-in double larder and key appliances have been recessed into the area underneath the staircase, creating room for the long island unit that now forms the centrepiece of this successful open-plan scheme. ‘Redesigning and extending this lower-ground floor was worth the investment,’ says Danielle. ‘There’s so much more natural light and the layout works perfectly as a multifunctional family space.’ GD
EX TENSION PLAN
❖ PROJECT TEAM Architect MW Architects (020 7407 6767; mwarchitects.co.uk) Structural engineer Kamaraldin Consulting Engineers (020 8878 8552) Contractor E&C Building and Design (07791 242 674; eandcbuilding.com)
WORDS BETH MURTON PHOTOGRAPHY FRENCH+TYE
Doors Fabco Sanctuary (01903 718 808; fabcosanctuary.com) Rooflight Global Skylights (01780 243 243; globalskylights.co.uk)
❖ FIXTURES & FITTINGS Kitchen British Standard (020 7870 7688; britishstandardcupboards.co.uk) Worktop Touchstone Worktops (020 8963 7450; touchstoneworktops.com) Timber floor Havwoods (01524 737 000; havwoods.co.uk) Pendant lights Tom Dixon (020 7400 0500; tomdixon.net) Wallpaper Farrow & Ball (01202 876 141; farrow-ball.com)
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BESPOKE STEEL DESIGN WINDOWS DOORS SCREENS www.fabcosanctuary.com
01362 695 750
PROJECTS | Single-storey
Double-glazed roof lights were installed to help create an airy space
EX TENSION PLAN
❖ PROJECT TEAM Architect Stephen Turvil Architects (020 8299 6169; stephenturvilarchitects.com) Contractor Konstruct Project Management (firstname.lastname@example.org)
DINING AREA MAIN HOUSE
❖ STRUCTURE Glazing Maxlight (020 8896 0700; maxlight.co.uk)
❖ FIXTURES & FITTINGS Kitchen design Steven Turvil (as above) Joinery Ashburnham London (020 8969 3944; ashburnham-london.co.uk)
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PROJECT PROFILE Names Adrian Busby and
CASE CASE STUDY STUDY | Ar | xxxx Ar xxxx The new extension provides better unity and access between the spaces
Hannah Roberson Location Winchmore Hill, north London Property End-of-terrace Victorian house Type of extension Single storey Size of extension 12sqm Reason for extending To create a larger kitchen and dining area Build cost Approximately £3,000 per sqm
Spreading their wings Adrian Busby and Hannah Roberson extended their Victorian terrace in London to create a larger open-plan living space with a better connection to the garden
WORDS SOPHIE VENING PHOTOGRAPHY DAVID BUTLER
fter extending their attic to create more bedroom space, Adrian Busby and Hannah Roberson contacted Stephen Turvil, at Stephen Turvil Architects, to complete their north London home renovation by reconfiguring the ground-floor living space. ‘Adrian and Hannah wanted us to redesign the layout of the 30sqm ground-floor kitchen and dining zone by adding on an additional 12sqm of floor area,’ explains Turvil. ‘The existing rear of the house was cramped and had a disjointed arrangement; the kitchen was small and above garden level so it needed better access to the outside area,’ he says. ‘They wanted a larger cooking and dining area with an informal family zone, and to improve the connection between the interior and exterior spaces.’ Turvil’s solution was to drop the floor level of the rear part of the extension to make it flush with the garden, allowing direct access from the dining area and creating new family space in the garden. The kitchen was moved to the rear of the open-plan area and placed on the higher (original) level, providing views across the family space and towards the garden. The exterior form was dictated by the need to keep the extension low along the neighbour’s boundary, so the roof slopes up from there. The other neighbour’s side was less sensitive to
the mass of the extension, as they are separated from the build by the existing closet wing and also have a rear extension of their own. When choosing the exterior cladding, Turvil decided a heavy brick or rendered block finish wouldn’t work because of the dramatic shape of the main body of the extension. ‘I determined black zinc would be best due to its durability and flexibility, plus it creates a great contrast with the green of the garden,’ he explains. The rest of the extension has been clad with cedar battens, which helps to link the new building with the garden fencing. To allow light to flood the new interior, Turvil instructed Maxlight to design and fit bespoke-made triple-glazed ultra-slim sliding doors with triangular-shaped glazing above them, a fixed corner window and two Skymax roof lights. Although an application for full planning permission was made to Enfield Council and granted first time in March 2011, construction work didn’t begin until September 2013. ‘It took a while for the clients to decide whether or not to proceed, and to develop the detailed design,’ explains Turvil. Fortunately, there weren’t any issues with the build, and the project was completed in March 2014. The finished result is a light-filled extension with a clear connection between the inside and outside living spaces. GD granddesignsmagazine.com / EXTENSIONS 2017 63
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CASE STUDY | Basement
PROJECT PROFILE Names Hannah Wilson and Anurag Jain Location Bow, east London Property Three-storey Victorian house Type of extension Basement conversion Extension size 36sqm (36sqm basement interior; 2.5sqm basement exterior light well; 10sqm rear side infill) Reason for extending To convert the cellar into habitable space and relocate the kitchen to the newly created basement Build cost £385,000 for the whole house renovation and extension, excluding VAT and fees
Going underground Digging down to create extra space has maximised the potential of Hannah Wilson and Anurag Jain’s mid-terrace house
former Second World War bomb shelter located in the cellar of a Victorian terrace might sound like the least likely location for a contemporary kitchen-diner, but for Hannah Wilson and Anurag Jain, converting this forgotten space into a habitable living area was key to the success of their project. Excited by the prospect of renovating the three-storey terrace, which was the only one on this east London street that still retained its original shop frontage, the couple approached Brian O’Tuama Architects for advice on how they could improve the house before putting in an offer for the property. With only a small kitchen at the rear of the ground floor, Hannah and Anurag were keen to look at ways of creating a more practical, family-friendly layout. ‘Converting the existing cellar seemed like an obvious way to create the space we needed for a large kitchen-diner, but we weren’t
sure if it would be possible,’ says Hannah. ‘We wanted reassurance from someone with the right technical expertise that it could be a viable option before going ahead with the purchase.’ With the sale complete and the necessary planning permission in place, the architects brought a specialist basement contractor on board to complete the eight-month project. The cellar was excavated to create an additional 80cm of head height, the perimeter of the house was underpinned and the entire ground floor and joists were lifted and replaced, with some steelwork inserted to stiffen the structure. To access the basement from the rear of the property and create a better connection with the outside space, the architects designed a zinc-clad side infill extension to house the new staircase. The original staircase from the main hallway at the front of the house was also
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CASE STUDY | Ar xxxx
Above left A timber slatted screen separates the new staircase from the adjoining playroom, allowing additional light into the stairwell, which also features a frameless glazed roof Above The dark tones of the painted kitchen are in keeping with the colour palette Hannah and Anurag have used throughout their renovated home left The doorway into the front reception room has been widened and fitted with fire-rated glazed double doors
SPOTLIGHT ON WOOD-EFFECT FLOORING With two young children, the couple wanted a durable and affordable flooring product to withstand everyday wear and tear, so they opted for porcelain floor tiles throughout the basement. Successfully recreating the visual appearance and warmth of traditional herringbone timber flooring, it cost around ÂŁ36 per sqm from Ricchetti (+39 0536 992 511; ricchetti.it).
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CASE STUDY | Basement
retained to meet Building Regulations, which require two means of escape from the basement. As with so many basement conversions, bringing in natural light is essential to the success of the space. The combination of a glazed roof over the new stairwell, a narrow light well, full-height windows and a hinged glazed door at the front of the kitchen captures the maximum amount possible. ‘We also wanted to ensure there was a connection between the rest of the house and the basement,’ says O’Tuama. ‘So we included a slatted timber screen between the playroom and the staircase in the side infill extension, and there’s also a large pivot window in the ground-floor study overlooking the same staircase.’ ‘Having a clear vision for this space from the outset has paid dividends, as I like to think the house is finally what it always could have been,’ adds Hannah. ‘We’ve created a more modern layout that works perfectly for everyday family life, but we’ve also enhanced the character of the house without being slavish to its late-Victorian origins.’ GD
SUPPLIERS ❖ PROJECT TEAM Architect Brian O’Tuama Architects (020 7923 4857; brianotuama.com) Structural engineer Alan Baxter Partnership (01622 744 263, abpengineers. plus.com) Contractor Drop Box Basements (020 3176 2096; dropbox basements.com)
❖ STRUCTURE Cladding VMZinc (01992 822 288; vmzinc.co.uk)
Glazing Aliplast (+32 9 340 5555; aliplast.be)
❖ FIXTURES & FITTINGS Kitchen worktop Caesarstone (0800 158 8088; caesar stone.co.uk) Floor and wall tiles Fired Earth (0113 243 0748; firedearth.com); Mosaic del Sur (020 3514 0483; cement-tiles.com); Ricchetti (+39 0536 992 511 ricchetti.it); Waxman Ceramics (01422 311 331; waxman ceramics.co.uk); Swedecor (01482 329691; swedecor.com)
EX TENSION PLAN
The zinc cladding used on the new side infill extension complements the grey painted window frames of the original property
WORDS BETH MURTON PHOTOGRAPHY ED REEVES
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A single-span, floor-to-ceiling sliding door links the house to the outdoor terrace
Clear vision A contemporary glazed light well bridges the gap between old and new and provides an eye-opening centrepiece within this listed London home PROJECT PROFILE Location Marylebone, central London Property Grade II*-listed Regency terraced house Type of extension Basement and ground floor Extension size 30sqm for basement and 30sqm for rear addition Reason for extending To create a larger kitchen and additional living space by extending the ground and lower-ground floors of the house Build cost £250,000 for the project, excluding VAT and fees
ow an extension relates to the original property is a key consideration of any design scheme, but it’s even more important when the property in question is Grade II*listed and both English Heritage and the local planning authority need to give their approval for the scheme. ‘Like many of the properties in this historic terrace, the original kitchen measured just 8sqm and was totally out of proportion with the rest of the house,’ explains Shahriar Nasser of Belsize Architects. ‘The homeowners wanted to increase the size of a small existing extension at the property’s rear to make space for a large kitchen-diner spanning the width of the house, as well as extend the lower-ground floor level to create a modern living area underneath the new kitchen. This provided a contrast to the more formal living spaces elsewhere in the house that were also being renovated and restored.’ Creating a successful blend of old and new was the driving force of the design for both of the new spaces. ‘We wanted to ensure there was a dialogue between the original property and the extensions, but it was also important for the new additions to be separated from the house in some way so that the rear facade could be left intact,’ adds Nasser. The solution was to create a transparent void between the house and the additions, allowing natural light and fresh air to reach deep into the property. Access to the new extension is via a glazed bridge, and both the ground floor and lower-ground floor rooms feature huge frameless panes overlooking the light well, which is landscaped to create a green outlook from the basement living space. Glass doors on the lower level can be left open to increase natural ventilation, as well as allow the homeowners access to these internal courtyards.
Dark grey painted units and honed black granite worktops give the bespoke kitchen a sculptural feel
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PROJECTS | Basement
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PROJECTS | Basement
Although the pair of extensions are undoubtedly more forwardthinking in style than the rest of the house, at English Heritage’s insistence there are details that reference the period architecture of the property. These include the traditional sash window in the kitchen, French doors in the basement and the stucco render that has been used on the exterior. ‘Because of the extensive glazing you can see right through the extensions back to the original house, so there’s a constant connection with the original architecture, too,’ says Nasser. ‘Adding these extensions has solved so many of the issues with the house and it’s now a far more practical, comfortable space to live in,’ he adds. ‘It also shows how contemporary interventions can play a key role in adapting a historic property for modern living.’ GD
above Featuring polished concrete flooring and contemporary glazing, the new basement room is designed to be used as an informal living area
SPOTLIGHT ON GLAZED LIGHT WELL
EX TENSION PLAN
The link between the original house and the extensions, and the doubleheight light well is key to this project, allowing the exterior to remain
untouched and creating a connection between each floor of the extension. Supplied and installed by Maxlight, the glazing cost around £45,000 (020 8896 0700; maxlight.co.uk).
WORDS BETH MURTON PHOTOGRAPHY NICK KANE
SUPPLIERS ❖ PROJECT TEAM COURTYARD
Architect Belsize Architects (020 7482 4420; belsizearchitects.com) Structural engineer Taylor Whalley Spyra (020 7253 2626; tws.uk.com)
LOWER GROUND FLOOR
Glazing Maxlight (020 8896 0700; maxlight.co. uk) Concrete floor Lazenby (01935 700 306; lazenby.co.uk) Engineered oak flooring Solid Floor (020 7486 4838; solidfloor.co.uk)
70 EXTENSIONS 2017 / granddesignsmagazine.com
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CASE STUDY | Side extension
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PROJECT PROFILE Names Ashley and Kate Lyas Property Detached Victorian house Location Poole, Dorset Type of extension Single-storey side extension Size of extension 56sqm Reason for extending To create a spacious kitchen-diner leading to an outdoor entertaining area Build cost £260,000
Side order A Dorset couple replaced their conservatory to create the ideal modern entertainment space
W above Burnt larch cladding requires minimal maintenance, and the colour will remain fairly stable top right A glazed link bridges the gap between the Victorian house and the modern space beyond left The garden was redesigned with new steps leading to the garden office, and a cedar-clad wall that will turn silver to blend in with the extension
SPOTLIGHT ON BURNT LARCH RB Studio opted to clad the build in larch that has been charred on the external face before installation, a process that creates a natural sealant to protect the timber from the elements. There’s variation in the natural colour and finish, giving the material a more textured feel and helping the extension blend back into the landscape. It costs from £108 per sqm from Shou-Sugi-Ban (01494 711 800; shousugiban.co.uk)
e love our Victorian home, but the layout just wasn’t suited to modern family life,’ explains Ashley Lyas. ‘We have two young children, so we invariably spend most of our time in the kitchen, but the original space was small, dark and stuck at the rear of the house with no view of the garden.’ In a bid to resolve the issues with the house, Ashley and Kate contacted RB Studio, giving the team a reasonably open brief to replace a dated and impractical 1990s conservatory at the side of the house with a new addition, which would house a kitchen and dining area leading to an outdoor entertaining space. ‘We knew we didn’t want a typical glass box, but other than that we were open to suggestions,’ says Ashley. ‘We put our trust in the architects to come up with a unique extension that would create an instant connection with the garden.’ The resulting design sets the contemporary extension at an angle to the house, maximising the tree-lined backdrop of the plot and creating a panoramic outlook over the outdoor space. Clad in dark, burnt larch and attached to the existing property by a frameless glazed link, there’s a clear separation between old and new. With the addition of extensive steelwork, the floor slab for the extension is cantilevered over the foundations, which helps to create the optical illusion that the structure is lightweight and floating above the garden. ‘Lifting the extension out of the ground helps to define it as a space,’ explains Laurence Bowen, director and architect at RB Studio. ‘It also creates the raised deck area, which is great for granddesignsmagazine.com / EXTENSIONS 2017 73
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CASESTUDY STUDY||Side Ar xxxx CASE extension Modern, monochrome finishes and sleek built-in appliances characterise the internal space
Glazed walls on three sides of the extension offer extensive views of the garden
the kids as they can sit with their legs hanging over the edge. In this way, the architecture becomes part of the seating in the outdoor entertaining area. ‘It was important, however, that this outdoor space didn’t feel like it was simply bolted on to the extension – it needed to be an integral part of the new structure.’ To achieve this, the flat roof extends out past the sliding doors to the furthest corner of the raised deck, creating a covered terrace area that the family can enjoy throughout the year. Inside, the space has been kept clean and simple with ceramic wood-effect flooring, sleek handleless kitchen units and slim profile worktops, all of which ensure the constantly changing views, colours and textures of the surrounding landscape are the main attraction of the space. The completed extension has revitalised the Victorian property and the family are reaping the benefits of the new indoor/outdoor space. ‘It’s fantastic to finally have somewhere everyone can spend quality time together,’ says Ashley. ‘It’s a brilliant transformation.’ GD
EX TENSION PLAN
WORDS BETH MURTON PHOTOGRAPHY PAUL ROBINSON
SUPPLIERS ❖ PROJECT TEAM
Architect RB Studio Architects (01202 700 032; rbstudio.co.uk) Structural engineer Calcinotto & Associates (01202 237 237; calcinotto.co.uk) Main contractor Hardy of Wessex (01202 465 482; hardyofwessex.co.uk)
Glazing IQ Glass (01494 722 880; iqglassuk.com) Charred larch cladding Shou-Sugi-Ban (01494 711 800; shousugiban.co.uk) Aluminium cladding and finishing County Gutters (01202 577 277; countygutters.co.uk) Composite decking Timber Tech (029 2080 3756; timbertechuk.co.uk)
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CASE STUDY | Ar xxxx
A large oversized door connects the inside and outside spaces
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PROJECTS | Side return
Time and place Fraher Architects’ sensitive side return extension in London provided its owners with the space and natural light they craved, while also melding past and present
lder houses are often out of sync with how we choose to live our lives today, and James and Gillian Brunt’s bijou Georgian terraced house near Waterloo Station, central London, was no exception. ‘It’s a listed building and very small artisan house originally built for the workers of Waterloo. It was compact, with a front room, back room and tiny outrigger extension on the ground floor, and it had been left unoccupied for over 10 years so was in total disrepair,’ says Lizzie Webster of Fraher Architects (020 8291 6947; fraher.co), who was enlisted to help transform the property. James and Gillian wanted to increase the amount of natural light that entered the ground-floor level and maximise the footprint of the building to make it full-width at the back. Webster translated these modest aims into a stunning contemporary concept that has brought the house up to date while still referencing its heritage. Householder and listed building consent was granted in 2014 to create a side return glazed extension at the rear of the property. ‘We designed a glass infill addition for a lightweight and sensitive approach, while maximising as much natural light as possible,’ explains Webster.
PROJECT PROFILE Names James and Gillian Brunt Location Central London Property Small artisan terraced house Type of extension Side return Extension size 20sqm Reason for extending They needed more room and wanted to make better use of the ground-floor space Build cost Something similar would cost around £3,000 per sqm
The rear side extension complements the history of the building, yet still provides a contemporary update
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CASE PROJECTS STUDY | Ar Side xxxx return
Fraher’s in-house joinery partner, Shape London, designed and built all the fitted furniture
As no foundations were needed for the basement, the build didn’t involve significant groundworks so the project ran fairly smoothly and to time, taking only nine months to complete. ‘The only slightly difficult element was making sure the bespoke glazing arrived on schedule and was measured correctly,’ says Webster. Once the structural works were completed and the house was weathertight, the builders were able to move onto the next stage – the bespoke interiors. ‘We have our own in-house joinery partner, Shape London,’ says Webster. ‘We set it up so that all the fit out of our projects could be completed to our exact design requirements and specifications.’ Fraher Architects came up with an interior design plan to offer a modern interpretation of the building’s original detailing. All the wood wall panelling, fireplaces, architraves and skirting have been restored to their original condition, helping to celebrate the history of the dwelling. The kitchen and bathroom wooden cabinets have been painted on the outside, but left exposed internally to show off
the natural warmth of the oak. Even the colours of the windows and door frames have been chosen specifically. ‘We used a dark blue heritage colour throughout the home, which is reflected in various parts of the building,’ says Webster. With the extension being predominantly glazed, it was difficult to install any lighting in the dining room area. Webster’s solution was to install pendant lights from a wall power point and create a sucker holder, which connects to the glazed ceiling to allow the pendant lights to hang above the dining table. The rest of the design approach was to keep the scheme as clean as possible. A light colour palette and materials have been employed in the bathrooms, and a herringbone floor pattern has been used throughout the house to help create a natural flow through the interior – even extending out into the garden space. The completed extension and interior renovation has revitalised this property, meeting James and Gillian’s brief to respect the heritage of the listed building while making the home fit for 21st-century living. GD
EX TENSION PLAN
WORDS SOPHIE VENING PHOTOGRAPHY JACK HOBHOUSE
❖ PROJECT TEAM Architect Fraher Architects (020 8291 6947; fraher.co) Contractor Forma (020 3695 9347; forma.london) Structural engineer Constant Structural Design (020 7700 2336; constantsd.com) Joinery Shape London (020 8291 6947; shapelondon.co)
❖ FIXTURES & FITTINGS Rooflight Meronden Designs (0845 345 5629; merondendesigns.co.uk) Flooring Havwoods (01524 737 000; havwoods. co.uk) Windows and doors Oriel Timber Windows and Doors (01780 490 019; orieltimberwindows.co.uk) Lighting Flos from The Conran Shop (0844 848 4000; conranshop.co.uk)
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On the level Creating an open-plan room at the rear of the house has given this London property a much-needed connection with its outside space while retaining its original exterior character
ith so much of London’s traditional housing stock ripe for the addition of a side return extension as a way to create a more contemporary, open-plan layout, it’s become one of the most commonplace projects for homeowners looking to add space and value to their properties. For Dave Gordon and Renato Callisto, utilising the unused area to the side of their mid-terrace offered a solution to unlocking the potential of their period home and improving the connection with the garden. However, the existing layout of the property meant incorporating this outside area into their house was far from a straightforward project. ‘The house is arranged over several half levels and the original kitchen and separate dining room were on the lower-ground floor,’ says James Owen Webster of Alexander Owen Architecture. ‘The rear outrigger alongside the empty side return was around a metre higher and housed a bedroom on what was effectively the raised groundfloor level. In order to create the open-plan space across the rear of the house that Dave and Renato wanted, it was necessary to excavate this outrigger, underpin it and insert a large amount of structural steel work to bring it level with the rest of the lower-ground floor.’ With the bedroom and a new shower room relocated to the front of the lower-ground floor, the rear of this level has now been transformed
into a light-filled kitchen-diner leading out to the garden. The new extension references the original architecture of the house, with the red brick arches designed as a modern take on the traditional brick detailing seen on the front facade of the property. With one half of the space extending out by one additional brick length, the difference in the original rear building line has also been retained. ‘It’s something the local planning authority were keen to see because of the property’s conservation area location,’ adds Webster. Key to the success are the tall pivot doors that open the house to the redesigned exterior space and offer views from the front door and entrance hall. By creating a flush door threshold and drainage system and continuing the wood-effect tiles outdoors in the same herringbone pattern, each space flows seamlessly into the next. ‘It had to be a wellcrafted, elegant junction between the doors, tiles and brick detailing to ensure a smooth transition from indoors to out,’ says Webster. Although the project has created a mere 12sqm of additional floor space, this small extension has transformed the layout and functionality of Dave and Renato’s property. ‘Our initial brief was all about introducing light and space to our home,’ says Renato, ‘but our architectural designers and builders really pushed the boundaries on this project to ensure that we achieved far more than just that.’ GD right As the roof of the extension is visible from the upper-ground floor reception room, red zinc provides an interesting focal point from above
SPOTLIGHT ON PIVOT DOORS To create a unique feature in the extension, the aluminium doors are offset on a pivot hinge around 15cm away from the edge of the door, which allows the doors to be opened wider. Powder-coated in pearl gold (RAL 1036), they offer a striking contrast to the red brick detailing on the rear facade. The doors cost £18,000 from Contemporary Glazing (01494 722 880; contemporary glazing.co.uk).
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PROJECTS CASE STUDY | Side| return Ar xxxx
PROJECT PROFILE Names Dave Gordon and Renato Callisto Property Victorian mid-terraced house Location Kennington, south London Type of extension Side return Size of extension 12sqm Reason for extending To improve the layout and link the lower-ground floor to the outside space Build cost £175,000, including fees and internal fit-out
Gloss-finish units and contemporary Silestone worktops maximise the natural light in the new space
EX TENSION PLAN
SUPPLIERS ❖ PROJECT TEAM Architectural designers Alexander Owen Architecture (020 3176 8902; aoarchitecture.co.uk) Contractor Aldridge Building Solutions (07967 642 534; aldridgebuilding solutions.co.uk)
WORDS BETH MURTON PHOTOGRAPHY SIMON MAXWELL
Pivot doors Contemporary Glazing (01494 722 880; contemporary glazing.co.uk) Zinc roof VMZinc (01992 822 288; vmzinc.co.uk)
❖ FIXTURES & FITTINGS LOWER GROUND FLOOR
Kitchen units Howdens (020 7535 1110; howdens.com) Worktops Silestone (01256 761 229; silestone.co.uk) Lighting Tom Dixon (020 7400 0500; tomdixon.net) Flooring Sequoia woodeffect ceramic tiles from Tile Giant (01782 597 777; tilegiant.co.uk)
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PROJECTS | Side return The glass cube is a favourite spot for relaxing
Making light work of it A glazed addition was the key to unlocking the potential in Tom and Sloane Wright’s side-return extension in Oxfordshire
he brief Tom and Sloane Wright gave to architect Patrick Stimpson of Space Program Architects was to create more space and replace their narrow kitchen with something modern ‘The 1970s kitchen was tiny and in a terrible condition,’ says Stimpson. In the pursuit of gaining more room, Stimpson, in collaboration with the client, planned to add a glazed side return onto the original kitchen by knocking down the existing exterior wall to create a fullwidth space for an open-plan kitchen and dining area. An added benefit of the design was that the scheme could be built under permitted development (PD), negating the need for planning permission. The project began in summer 2014 and completed the following spring. Work involved the removal of the exterior wall, and putting in new steel joists and foundations to support the original extension and prop up the existing bathroom on the floor above. New foundations were dug for the side-return party wall and to support the new glass and steel structure, while the flooring in the original kitchen was taken up and replaced with polished concrete and insulated underfloor heating. In addition to the glazed side return, more glazing was added to
the original extension in the form of a glazed window seat, which not only helps create a better link between the extension and garden, but also provides a private nook that allows Tom and Sloane to enjoy the garden, whatever the weather. ‘The owners created a mood board of pictures they had collected from the internet, magazines and books,’ says Stimpson. ‘The idea for the window seat came from their research.’ The interior finish was a considered choice. The client was keen to create a minimal feel with an exposed brick, steel and concrete floor design. ‘We wanted to reference the fact the dining zone had previously been an outdoor space,’ explains Stimpson. ‘The brickwork – partly made from reclaimed bricks from the demolished walls and a chimney stack removed from the kitchen – ties in through the glass. It gives the impression that you’re sitting outside when seated at the dining table. We’ve used the same light fittings both inside and outside, too.’ The overall effect of the side return is modern and refreshing, and its owners love the space. ‘It has changed our kitchen from a narrow room into a light-filled space, with plenty of room for friends,’ says Sloane. ‘We love watching the raindrops fall on the glass roof.’ GD
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PROJECTS | Side return
PROJECT PROFILE Names Tom and Sloane Wright Location East Oxford Property Victorian terrace Type of extension Glazed side return Extension size 35sqm Reason for extending To increase the size of the kitchen and dining space Build cost £90,000
left Because the extension is heavily glazed, an SAP test was undertaken to analyse the envelope of the property and satisfy Building Control that the excess glass fitted is compensated by other energy-saving measures
above The exposed brick wall, with sootstained bricks from the knocked-down chimney stack, makes an attractive feature
EX TENSION PLAN
SUPPLIERS ❖ PROJECT TEAM WORDS SOPHIE VENING PHOTOGRAPHY QUINTIN LAKE
Architect Space Program (07891 608 893; space-program.co.uk) Structural engineer OMK Design Consultancy (01993 811 900; omk-design.co.uk)
❖ STRUCTURE Glazing Maxlight (020 8896 0700; maxlight.co.uk)
❖ FIXTURES & FITTINGS Lighting Nordlux Group (+45 98 181 611; nordlux.com) Kitchen Unfitted (01608 650 065; unfitted.co.uk)
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PROJECT PROFILE Name Taeko Asai Location Tufnell Park, north London Property Victorian mid-terrace Type of extension Loft extension Extension size 33sqm Reason for extending To create a more habitable space Build cost ÂŁ150,000
above The roof space has been turned into a lounge, kitchen and dining area, while the lower floor now houses two bedrooms and an area for ritual Japanese bathing right The project is named Clay House, after the rough layers of earth applied to the walls
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CASE STUDY | Loft conversion
The sky’s the limit Taeko Asai wanted to create more living space in his London upper-floor flat, so he decided to renovate and add to the existing structure by extending into the roof space
apping into an unused loft space could be just the answer to all your housing needs – if architect Simon Astridge’s latest extension project, Clay House, is anything to go by. When Taeko Asai wanted more bedroom space and a better living area, Astridge’s solution was to refurbish his one-bedroom flat on the top floor of a Victorian mid-terraced property. They rearranged the floor plan to create two bedrooms and a luxury bathing space downstairs, and extend the loft above into a habitable open-plan kitchen, living and dining area that offers stunning views overlooking London’s skyline.
On the top floor the roof was removed, and a scaffolding cover was erected to protect the flat from wind and rain while the extension took place. A rear dormer extension was also built and the entire floor was refurbished. Clay internal walls fill the space here, too, alongside exposed brickwork. ‘Leaving them bare has helped to maximise the width of the room,’ explains Astridge. The dining table sits in front of the rear dormer window with south-facing windows to take in the vistas, while the top leaf of the sash windows can be opened to help ventilate the space. granddesignsmagazine.com / EXTENSIONS 2017 85
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CASE CASESTUDY STUDY||Loft Ar xxxx conversion
The raw clay finish is commonly found in Japanese homes
The slimline profile of the kitchen island helps to increase the sense of space
WORDS SOPHIE VENING PHOTOGRAPHY NICHOLAS WORLEY
❖ PROJECT TEAM
A simple stainless steel cooking island by Kitchen Architecture has been placed under the front eaves. Other features in the loft space include a small black stove, wooden floorboards and a barrier made of clay shielding the staircase, which has a thin black metal handrail on the other side intended to patina over time. Because Taeko is Japanese, Astridge chose materials that would specifically reference his heritage. ‘The design brief was to create a simple but beautiful living space with a nod to Japan,’ says Astridge. A Japanese ritual bathing space has been fitted on the ground floor of the property. Divided into two zones, you initially walk into a dressing area laid with tatami flooring, with timber-panelled walls installed to help provide a warm and comfortable zone. Step through a glass door and you enter a wet-room for showering and bathing, where grey stone tiles line the space and wood-lined eaves are left exposed above. Two carpeted bedrooms are also situated on this level, and reddened plywood has been used for the skirting boards and doorways. Furthermore, clay has been applied to all the interior walls, a raw texture commonly used in Japanese homes. Planning permission didn’t take long and was relatively stress-free, as was the build, which completed this spring. The result is a home that has doubled its footprint to create a beautiful Japanese-inspired sanctuary for its owner. GD
Architect Simon Astridge (020 3432 9772; simonastridge.com) Engineer Tyrone Bowen at Cambridge Architectural Research (01223 460 475; carltd.com)
❖ STRUCTURE Clay specialist Clayworks
(01326 341 339; clay-works.com) Windows Nigel Saunders Windows (01384 261 521; nigelsaunderswindows.co.uk)
❖ FIXTURES & FITTINGS Kitchen island Kitchen Architecture (020 8785 1960; kitchenarchitecture.co.uk)
EX TENSION PLAN
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PROJECTS | Loft extension
A new dormer window provides enough height for the guest room
EX TENSION PLAN
SUPPLIERS ❖ PROJECT TEAM Architect R2 Studio Architects (020 8766 6116; r2studio.co.uk) Structural engineer Torcal (01622 745 512; torcal.co.uk) Contractor Hardwood Joinery (07841 537 783)
❖ STRUCTURE Roofing Sarnafil (01707 394 444; gbr.sarnafil.sika.com) Loft extension cladding Marley Eternit (01283 722 222; marleyeternit.co.uk)
❖ FIXTURES & FITTINGS Flooring Nora (01788 513 160; nora.com)
R2 Studio designed plenty of built-in furniture to create a practical office
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PROJECT PROFILE Names Julia and Andrew Bell Location Kennington, south London Property Victorian terrace Type of extension Loft Extension size 41.5sqm Reason for extending To create two
Julia and Andrew Bell’s Victorian terrace has been enlivened by their new extension
additional energy-efficient bedrooms, one with office space
Walls, floors and joinery are painted in various bright colours in each room
hen it comes to organising a successful extension, paying attention to the finer details can be key. Which is what Julia and Andrew Bell soon discovered when they decided to create a home office and guest bedroom in their Victorian terraced property in Kennington, south London. The couple first approached architect Frederik Rissom at R2 Studio Architects at the beginning of 2015. ‘We considered a side return at first, but Julia and Andrew thought it would encroach on their neighbours’ property,’ says Rissom. ‘We then discussed the idea of building a rear single-storey extension under permitted development, but this concept was also quashed because the neighbours on the other side of the house weren’t keen. In the end we decided a loft extension would be the least contentious solution. And both Julia and Andrew felt that they already had enough ground-floor living space.’ A certificate of lawful development was issued to build a loft extension under permitted development at the end of summer 2015, to provide the couple with two additional bedrooms, one with a built-in desk area. The couple considered the drawings and specifications carefully before instructing Rissom to send them out to tender. With a contractor chosen, construction work began in early 2016. The whole house was gutted to allow for an open-plan living space on the ground level, and the first-floor ceiling was lowered to create enough head room in the loft. Inside, a new staircase was built, and as you walk up the flight of stairs into the new extension you’re met by a roof light and an open-joist ceiling, which not only helps to reflect natural light around the new space and down the staircase, but also provides interesting light patterns and creates the illusion of more room. The entire house has been retro-fitted with insulation to help reduce heat loss by about 90 per cent. ‘You don’t actually have to add a lot of insulation to make a big difference in a mid-terrace home, because you’re already gaining borrowed heat from neighbouring properties,’ explains Rissom. Julia and Andrew worked closely with Rissom and R2 Studio’s in-house colour specialist to come up with the home’s bold interior colour scheme. The choice of hues evolved after the staircase was installed, which starts in a dark Victorian red on the ground floor and gradually changes into a burnt orange at the top of the house. Matching coloured wall panelling and rubber flooring has been added throughout and the shades applied in the rest of the property, although bold, are a little more constrained to allow flexibility for furnishings. The completed extension and full renovation has revitalised the house, meeting the brief for a bright and light-filled home. GD
WORDS SOPHIE VENING PHOTOGRAPHY ANDY STAGG
Build cost £250,000
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The rear garden complements the layout of the house, linking the two spaces
PROJECTS | Multi-height
PROJECT PROFILE Names Arthur and Dorothy Wickson Location Kew, southwest London Property Detached house Type of extension Two-storey side, rear and basement extension Size of extension 76.75sqm Reason for extending To remodel the entire house and create a light-filled, open-plan layout Build cost £900,000 for renovation and extensions, excluding VAT and fees
Total update A substantial redesign and extension project has turned this once featureless property into an inspiring, contemporary home
rong house, right location was the issue for Arthur and Dorothy Wickson when they saw a detached property for sale in a desirable conservation area near London’s Kew Gardens. Built by a developer less than 20 years previously, the house was a poor imitation of the period properties in the area, having been designed and built for a quick profit with little thought to the overall layout or connection to the outside space. ‘There were lots of different levels in the house and though there was a front-to-back connection on one side of the property, the other half was compartmentalised,’ explains Reinhard Weiss of 3S Architects and Designers. ‘It made for an awkward layout and the new owners couldn’t visualise how it could be transformed to improve the interior space.’ The architects proposed multiple extensions to remedy the property’s numerous issues, including adding a two-storey side extension to square off the footprint of the house, a rear addition to improve the groundfloor layout, and extending the basement to increase the useable space. ‘The lower-ground floor had never really been designed as a living area and was more of a storage space,’ says Weiss. ‘Increasing the footprint allowed us to create a separate living room, kitchen and bedroom on
this lower level, so Arthur and Dorothy now have a self-contained flat that family and friends can use when they come to visit.’ On the ground floor, the layout was redesigned to create a series of open-plan spaces that benefit from new views of the garden. The staircase was pushed back and replaced with an open-tread oak and glass design, which climbs up through the middle of the house from the basement to the loft and allows light to filter through. A tower-like glass structure added to the rear brings additional light into the stairwell and provides an impressive outlook over the reconfigured garden. Full-height sliding doors across the full width of the rear extension enhance this connection, with elegant stone steps leading down to the garden. The rear extension is clad in copper, which has been treated so it will retain its colour rather than oxidising over time. ‘The project has completely transformed the house, as there’s so much light throughout the property, even though there are no windows on the flank walls,’ says Weiss. ‘There’s an instant connection with the outdoors – you can see through the staircase and take in the whole arrangement of the layout and garden in one view.’ Thanks to this extensive redesign, the Wicksons now live in their ideal home. GD
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EX TENSION PLAN N
MASTER EN SUITE BEDROOM
top A glass overhang across the width of the extension provides additional protection for the sliding doors
above The ground floor is now one open-plan space that is perfect for entertaining
❖ PROJECT TEAM
FEATURE STAIRCASE Made from a steel structure with a glass balustrade to create a lightweight, floating effect, the open-tread staircase is the centrepiece of the house. LED lighting embedded under each oakclad tread allows light to wash down the structure. A similar design would cost around £30,000 from Stair Factory (01772 866 344; stairfactory.co.uk).
Architect 3S Architects and Designers (020 8332 9966; 3s-ad.com) Main contractor Analytic Building Contractors (0845 279 7604; buildingbeautifulhomes.co.uk) Structural engineer Andrews Associates Consulting Civil and Structural Engineers (020 8680 5300)
EN SUITE LIVING AREA
WORDS BETH MURTON PHOTOGRAPHS ALISTAIR NICHOLLS
Copper cladding Tecu Copper by KME (0190 575 1814; kme.com) Sliding doors IQ Glass (01494 722 880; iqglassuk.com)
❖ FIXTURES & FITTINGS Lighting Delta Light (+32 56 435 735; deltalight.com)
LOWER GROUND FLOOR
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SPOTLIGHT ON FIBRE CEMENT CLADDING A strong yet lightweight material with a similar appearance to slate, fibre cement panels have been used to clad the front and rear extensions. Requiring minimal maintenance, the Natura panels will weather over time and take on a slightly aged patina. They cost around ÂŁ60 per sqm from Marley Eternit (01238 722 588; marleyeternit.co.uk).
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CASE STUDY | Multi-height
Room with a view An expanse of glazing and a redesigned layout have given this home an instant connection with its surrounding landscape
The new double-height porch creates a striking entrance to the house. An open-tread staircase allows more light to filter through the space
hen Winchester-based architecture practice AR Design Studio was approached to redesign a dated 1970s house in the city, the primary aim of the project was to make the most of the property’s stunning location. With an elevated position offering magnificent views over the city and surrounding countryside, the building’s dark, compartmentalised layout and small windows did little to capitalise on its impressive vista. Due to the sloping nature of the site, the property is arranged over three levels, with the entrance and main living accommodation located on the upper-ground floor and the bedrooms and bathrooms on both the lower-ground and first floors. With little having been done to the house since it was first built, the new owners wanted to renovate it as well as create additional living space and bring in as much natural light as possible. ‘To improve the entrance to the house we replaced the existing porch with a contemporary double-height design, creating a bright and welcoming space that offers a teaser of the view beyond,’ says Nigel Dakin of AR Design Studio. The most significant change to the property, however, is at the rear of the house, where the results of this extensive makeover are clear to see. The insertion of a contemporary box has allowed the middle section of the rear facade to be removed and replaced with a completely glazed wall featuring floor-to-ceiling sliding doors.
PROJECT PROFILE Names Geoff and Evelyn Thompson Location Winchester Property 1970s detached house Type of extension Single storey to upper-ground floor level, and double-height entrance on the front elevation Size of extension 26sqm for the single-storey rear extension Reason for extending To open up the layout and maximise views over the local countryside Build cost A similar extension would cost around £2,500-£3,000 per sqm
The layout of the kitchen-diner has been arranged to ensure all workspaces on the central island unit look out onto the vistas
Stairs lead down from the dining space to the lower-ground floor and the master bedroom suite
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The windows have been updated with full-height frames designed to maximise the view
CASE STUDY | Multi-height
‘It was an interesting structural challenge as we removed a large section of masonry from the middle of the house, which required a lot of steelwork to support the new opening,’ explains Dakin. The upper-ground floor has also been extended out to the side to create space for a large kitchen-diner, giving the house a more linear feel that maximises the wide nature of the plot. With the front and rear extensions clad in fibre cement panels, these bold new additions stand out against the brickwork and clearly define where old and new meet. Enlarged window openings on the other two floors bring in additional natural light and create a more modern aesthetic. Internally, the layout has been opened up to create a series of spaces orientated to take in the views from the rear of the house. Partial dividing walls between the kitchen, dining area and living room break up the space while allowing each zone to feel connected. Thanks to the innovative redesign and use of extensive glazing, this once unremarkable 1970s house now fulfils the potential of its sought-after location. GD
The sleek bathroom has been modernised in keeping with the rest of the renovation
EX TENSION PLAN
❖ PROJECT TEAM Architect AR Design Studio (01962 864 545; ardesignstudio.co.uk) Contractor Blue Fish Construction (01962 896 370; bluefishconstruction.co.uk)
❖ STRUCTURE Glazing Smart Systems from HH Aluminium (01489 589 655; hhali.co.uk) Cladding Marley Eternit (01238 722 588; marleyeternit.co.uk) Kitchen The Myers Touch (01962 600 084; themyerstouch.co.uk) Tiles Stone & Ceramic Warehouse (020 8993 5545; stoneandceramic warehouse.co.uk) Bathroom Bathroom Warehouse (01962 862 554; bathroomwarehouse winchester.com) Wood burner Stûv (+32 8143 4796; stuv.com)
WORDS BETH MURTON PHOTOGRAPHY MARTIN GARDNER
❖ FIXTURES & FITTINGS
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The new extension offers its owners views between its various levels and out to the garden
PROJECT PROFILE Names Max and Caroline Green Location Islington, north London Property Georgian town house Type of extension Multi-height Extension size 10sqm Reason for extending To create better connectivity between all the different levels in the house Build cost £350,000 guide price
Smart connection Max and Caroline Green replaced an existing extension on their three-storey London townhouse with a glazed addition, offering many new perspectives while increasing light and space
hen Max and Caroline Green bought their three-storey Georgian townhouse in Islington, London in 2012, they looked beyond the dark and unorganised interior layout with its unusual labyrinth of rooms on the ground and lower-ground floors. ‘The property had been extended before, but it wasn’t a well thought-out design,’ says Jonathan Plant of Lipton Plant Architects (020 7288 1333; lparchitects.co.uk). ‘There was a staircase leading down to the basement, which wasn’t connected to the original staircase up to the first floor. Its location generated a lot of unnecessary corridors, created restricted views out over the garden and blocked natural light from entering the lower-ground floor.’ Max and Caroline instructed Plant to come up with a design solution to reconnect all the different parts of the building. In
November 2014, a planning application was submitted and granted within 12 weeks to knock down the poorly designed extension and replace it with a full-width, two-storey glazed addition. ‘Islington’s policy for rear extensions is normally full-width single-storey, or a half-width two-storey,’ explains Plant. ‘So to get an almost two-storey full-width extension is unusual, but the site particulars allowed us to do that without having any impact on the neighbouring houses.’ Work began on the site in March 2015 by removing the rear wall on the lower-ground and ground floor of the house and replacing it with a two-storey glass structure, which had to be craned over the top of the house. Internally, walls were knocked down at ground and lower-ground level to open up the interior space. This has allowed for a living area on the ground floor with a glass balcony overlooking
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CASE STUDY | Multi-height Lipton Plant removed the rear wall on the ground and lower-ground floor and replaced it with a twostorey glass extension
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CASE STUDY | Multi-height
the dining table on the lower-ground floor below. A Roundhouse kitchen is slotted into the single-height space behind it. A series of openings were created to overlook the double-height dining space, such as a small internal window from the study on the first floor and a window seat that juts out at the top of the staircase. Both help to connect the two floors together, but also to flood the new living area with natural light. Next, a new staircase leading down to the lower ground floor was installed, so that it connects with the previous stairs that were in place to the levels above. Inside, walls have been painted white and new flooring and bespoke joinery have been fitted throughout. An integrated home technology system controls the lighting, music and underfloor heating, too. The finished result offers a clever solution and creates a stunning addition to the house. ‘It’s something we strive to do as a practice,’ says Plant. ‘We try to come up with a creative concept that still delivers the client’s requirements. Getting a balance between creativity and delivery can be challenging, but it is fundamental to a successful scheme.’ GD
above A combination of herringbone parquet and pale grey stone flooring has been used on the lower-ground floor, continuing outside to the terrace area, creating a cohesiveness between interior and exterior spaces right A ground-floor balcony, oriel window seat and internal study window all overlook the new double-height dining space
EX TENSION PLAN
❖ PROJECT TEAM KITCHEN LIVING ROOM
❖ STRUCTURE Glazing Maxlight (020 8896 0700; maxlight.co.uk) Staircase Canal Engineering (0115 986 6321; canalengineering.co.uk)
❖ FITTINGS & FIXTURES Flooring Tuttoparquet (020 7435 8282; tuttoparquet.co.uk) Home automation Grahams (020 7226 5500; grahams.co.uk) Kitchen Roundhouse (020 7297 6220; roundhousedesign.com)
LOWER GROUND FLOOR
WORDS SOPHIE VENING PHOTOGRAPHY DAVID VINTINER
Architect Lipton Plant Architects (020 7288 1333; lparchitects.co.uk) Main contractor Image Build (01923 850 788; imagebuildltd.co.uk) Structural engineer Conisbee (020 7700 6666; conisbee.co.uk)
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CASE STUDY | Multi-height
PROJECT PROFILE 1 Names Kate and Ben Jones Location Tower Hamlets, east London Property Victorian mid-terrace Type of extension Two-storey rear and ground floor side infill Extension size 18sqm (plus refurbishment of existing 91sqm house) Reason for extending To relocate the bathroom from the ground floor to the first floor and create an open-plan kitchen-diner Build cost £250,000 (includes cost of refurbishment), excluding VAT
Double vision These neighbouring extensions in east London demonstrate how imaginative thinking and a collaborative attitude can pay dividends when extending your home
avigating the rules and regulations of planning permission can be one of the first stumbling blocks when extending homes. So when Kate and Ben Jones wanted to add extra space to their Victorian terraced property in a London conservation area, they decided to be creative in their approach to obtaining approval for the scheme. ‘In addition to renovating the house and extending the ground floor, we also wanted to add extra space on the first floor so we could relocate the ground-floor bathroom upstairs without having to sacrifice a bedroom,’ explains Kate. ‘However, the original offshoot at the rear of our home is joined to our neighbour’s property, so they extend out to the same point as a pair. We knew other similar applications in the area, where only one house was to be extended further at first-floor level, had been turned down on the grounds of creating an unbalanced scheme.’ They spoke to their neighbours, Neil Shelford and Rohan Pynor, who were also interested in extending their home, and the couples
agreed to join forces and put in a twinned planning application that would demonstrate a balanced approach to the development of the first floor of each home. ‘Although we were initially rejected, we gained permission on appeal because we were able to show that the rear of the houses couldn’t be seen from the road,’ says Kate. Designed by Architecture For London, each of the period properties features a two-storey extension to the rear and a single-storey side extension with a glazed roof, which has opened up the ground floor layout and brought additional light into the back. ‘Although identical in size, the two extensions are different in design, both internally and externally, to allow each couple to express their own individuality,’ explains Matt McKenna of Architecture For London. Kate and Ben’s choice of polished concrete flooring and contemporary slate cladding for the angular, garden-facing facade of their ground floor extension
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PROJECT PROFILE 2 Names Neil Shelford and Rohan Pynor Location Tower Hamlets, east London Property Victorian mid-terrace Type of extension Two-storey rear and ground floor side infill Extension size 18sqm (plus refurbishment of existing 91sqm house) Reason for extending To increase the size of the rear bedroom on the first floor and create a larger kitchen on the ground floor Build cost £200,000 (includes cost of refurbishment), excluding VAT
above left Kate and Ben’s extension is set two steps lower than the original room at the front of the house to gain around 45cm of head height above Modern glazing maximises natural light in Neil and Rohan’s extended space left Planning permission for the double project was granted on the condition that the extensions could not be seen from the street
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CASE STUDY | Multi-height
SPOTLIGHT ON MODERN MATERIAL
contrasts with the more traditional appearance of Neil and Rohan’s brick-built addition. While planning negotiations may have been the motivation for uniting on the scheme, the couples have benefited from cost-saving measures during the design and construction phases. ‘Both extensions were built simultaneously by the same contractor, meaning they could share a site manager. There were also further efficiencies in labour and material ordering,’ says McKenna. ‘However, each homeowner had their own contract to ensure they were kept as two separate projects.’ ‘Although ours is a unique situation, we’ve shown how working with your neighbours can have great benefits,’ says Kate. ‘And even though we pooled our resources, we still had the freedom to create the style of space that would suit our individual needs.’ GD
above Neil and Rohan’s open-plan kitchen features resin flooring with bespoke quartzite worktops, creating a contemporary, streamlined scheme
This striking slate cladding is made up of thin stone veneer sheets that are lightweight and flexible, making it a suitable alternative where typically heavy stone cladding isn’t viable. Appropriate for indoor and outdoor use, it’s thin enough to be easily cut on site and is quick and easy to install. Available in 18 different finishes, it costs from around £52.80 per sqm, from Real Stone Cladding (01324 334 990; realstonecladding.co.uk).
EX TENSION PLAN
❖ PROJECT TEAM Architect Architecture For London (020 3637 4236; architectureforlondon.com) Engineer Blue Engineering (020 7247 3811; blue engineering.co.uk) Contractor Get Turner (020 7739 0044; getturner.co.uk)
BEDROOM DINING AREA
WORDS BETH MURTON PHOTOGRAPHY JIM STEPHENSON
❖ STRUCTURE Sliding doors and skylight Sunvista at Compass Glass (020 8946 8080; compassglass.co.uk) Concrete floor Steyson Granolithic Contractors (020 8553 2636; steysonconcretefloors.co.uk) Resin floor Senso Floors (020 8969 0183; sensofloors.co.uk)
❖ FIXTURES & FITTINGS Timber flooring Reeve Wood (01553 776 835; reevewood.com) Joinery LB Construct (lbconstruct.co.uk)
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Sunvista Minimally framed sliding door system
SUNVISTA LONDON SHOWROOM Compass Glass Ltd Unit 29, Stadium Business Centre Riverside Road, London, SW17 0BA www.compassglass.co.uk T: 020 8946 8080 E: Sales@compassglass.co.uk
A large skylight in the flat roof floods the garden room with natural light
PROJECT PROFILE Names Jamie and Alexandra Potter Property Victorian terraced flat Location Highbury, north London Type of extension Garden room Size of extension 9sqm Reason for extending To create a music and sewing room
EX TENSION PLAN
❖ PROJECT TEAM
❖ STRUCTURE Cork cladding Amorim (+00 351 227 419 100; amorimisolamentos.com) Sedum roof Green Roofs Direct (0800 774 7650; greenroofsdirect.com) Bespoke glazed oak pocket door Design by Surman Weston (as above) and fabricated by Tim Gaudin (as above) GARDEN SHED
WORDS SOPHIE VENING PHOTOGRAPHY WAI MING NG
Architect Surman Weston (020 3816 0242; surmanweston.com) Lead contractors and construction Surman Weston (as above) Joinery Tim Gaudin (07792 340 268; timgaudin.com)
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PROJECTS CASE | STUDY Garden | Arroom xxxx
This cork-clad studio is a workspace for a musician and a seamstress
Thinking inside the box Clad in environmentally friendly cork, this garden room provides the perfect craft space for its owners in north London
amie and Alexandra Potter first got in touch with Percy Weston at Surman Weston architects in 2014, when they were looking for advice on creating more space for a sewing and music room in their London flat. ‘They wanted a place that was separate from their main home to aid concentration,’ explains Weston. ‘A garden room seemed the best solution because they weren’t able to extend their flat.’ Weston noticed a spot at the end of the long garden, surrounded by brick walls and foliage from neighbouring properties, that was ripe for a small building. ‘We had to obtain full planning consent to build the structure, which went to appeal as the site is tight,’ says Weston. Luckily, permission was granted and work began in May 2015. The small nine square metre structure has been constructed using a traditional timber-frame method. ‘We were restricted on the materials we could use,’ says Weston. ‘With no side access everything had to come through the house, so needed to be relatively small and easy to manoeuvre.’ Externally, it’s clad in cork, which forms a weatherproofing
layer as well as acting as a thermal and acoustic insulator. The earthy quality of the thick cork, particularly when combined with the green roof, nestles the building into its organic surroundings. Internally, the simple volume is lined with birch plywood. To help create a feeling of space within the limited floor area, fitted ply furniture is cantilevered off the walls. A large skylight in the roof helps bathe the room in natural light, while a small window placed in the middle of the two desks helps divide the two workstations. Jamie and Alexandra were keen to build a sustainable extension, so timber internal linings, an all-timber structural frame and the wildflower sedum roof are used along with the sustainable cork cladding. Formed from the bark of cork-oak trees, the innovative expanded cork blocks are additive-free and significantly carbon negative. The couple are pleased with their new workspace. ‘They embraced the design and use it all the time,’ says Weston. ‘It’s great to know people are enjoying something you’ve designed in the way it was intended.’ GD granddesignsmagazine.com / EXTENSIONS 2017 105
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Quick construction Off-site building saw Helen and Alastair Niven rapidly complete their London garden room
WORDS SOPHIE VENING PHOTOGRAPHY DAMIEN GRIFFITHS
as the potential disruption of a construction project ever put you off building an extension? If so, look to this scheme for inspiration. Designed by architect Nic Howett, the prefabricated, timber-framed structure took only one week to assemble on site, and roughly four more weeks to complete, causing minimal disturbance for its owners, Helen and Alastair Niven. The couple had been living in the property for about 18 months, and had recently retired, when they realised they didn’t have the flexible and stimulating space required for Helen’s hobby – rag rugmaking. Family friend and architect, Nic Howett, devised a plan to build an additional room in the garden – aptly named the Rug Room. Not only was the garden plot narrow, it also had no rear access, so all the building materials had to fit through the main house and down a narrow winding staircase. Howett set to work creating a series of models to see what could be built in the space available. He decided to construct the building set slightly away from the end of the plot, with entrance doors to one side and the rear, providing access to a hidden green space behind. ‘We discussed building at the back of the garden, but we wanted there to be a journey from the main house to the rug room and beyond,’ says Howett. ‘In the end, the garden room was pulled away from the back of the plot and a secret garden, which can’t be overlooked by neighbours, was created behind it.’ To overcome access issues, the birch plywood structure was fabricated off-site before arriving in 100 components, which were compact enough to fit through the house. Built on six small pad foundations, it took the joiner a week to assemble the structure and fit the windows, then approximately another four weeks to clad the building in insulation and raw corten steel and finish the internal space. ‘The corten provides a weathered look, which helped the building settle into its environment quickly,’ says Howett. Inside, all the fitted furniture is made from birch plywood, too, and acts as a support to the main structure. The timber has been kept bare, a look Howett was keen to promote. ‘I wanted to be honest to the way the building had been created – the construction is also the aesthetic,’ says Howett. ‘To have done anything differently would have been untruthful to the building.’ The couple are so pleased with their light and airy workspace that they’re now considering renovating the loft space, which Alastair uses as a home office. ‘Part of the project was about creating a dialogue between the house and the Rug Room,’ says Alastair. ‘It’s why we positioned the desk to look back towards the main house. We’ll do doing something similar at the top of our home, to help strengthen the relationship between the two spaces.’ GD 106 EXTENSIONS 2017 / granddesignsmagazine.com
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PROJECTS | Garden room Below An extension like this would normally be built under permitted development, but as the house is in a conservation area it required planning permission
PROJECT PROFILE Names Helen and Alastair Niven Property Victorian terrace
right The desk is positioned in front of fixed glazing and faces the main house to provide a connection between the two buildings
Location London Type of extension Garden room Size of extension 8sqm Reason for extending To create a workspace for crafting Build cost £25,000
SUPPLIERS ❖ PROJECT TEAM Architect and contractor Nic Howett (07977 566 092; nichowett.co.uk) Consultant and structural engineer Webb Yates Engineers (020 33696 1550; webbyates.co.uk) Carpentry and joinery Spaces Bespoke Joinery (01794 874 520; spacesltd.co.uk)
❖ STRUCTURE Corten steel Lotus Steels (01555 812 600; lotussteels.com)
EX TENSION PLAN
The garden room is used as a place to read and work, and, most importantly, somewhere for Helen to make rugs
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GLAZING ❖ FLOORING ❖ EXTERIOR SURFACES ❖ HEATING ❖ LIGHTING ❖ KITCHENS ❖ BATHROOMS ❖ INTERIORS
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MODERN GLAZING From floor-to-ceiling windows to top-down roof lights, glazed extensions have come far since traditional conservatories, and are now designed for year-round use
ot only can a well-illuminated space make a serious statement, increase light and space and make your property feel more open, it isn’t difficult to achieve a modern look, too. A contemporary glazed structure can sit well in a period property, while the inclusion of high-tech frameless glazing and gas-filled panels can be key to helping you create your own space that has plenty of wow factor.
obscured glazing and don’t overlook neighbouring properties. ‘Consider how much privacy a glass extension affords you,’ says Lizzie Webster of Fraher Architects (020 8291 6947; fraher.co). ‘Do you want to make it feel enclosed at night? Often glass boxes can feel cold after dark, so the design could accommodate pockets for hidden blinds, for example.’
Clear definitions Planning and design If you’re building an extension of more than one storey, you’ll need to ensure that units on the side elevations feature
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When you start work on the design of your glazed extension, consider how the rooms will be used and the ways the natural light moves around
throughout the day, plus how you may need to position kitchen units due to lack of traditional wall space, should this be the purpose of the zone. This way, you can also decide whether to opt for a simple set of French doors, starting at £764 at Wickes (0330 123 4123; wickes.co.uk), that lead out onto the garden space, or bi-fold doors, which when fully opened will provide a seamless line with your outdoor area. These cost around £1,200 at Origin (0808 149 2593; origin-global.com). You could also consider the installation of entire elevations of fixed glazing, or clerestory units
PROJECTS | Buyer's guide GLAZING
1 BOLD AND BEAUTIFUL This period property was renovated and extended using oversized doubleheight glazing and glass sliding doors, from £1,200 per sqm with minimal frames. IQ Glass (01494 722 880; iqglassuk.com)
2 TRADITIONAL VIEW Built to replace a glass conservatory, this brick extension by Ade Architecture features a large structural glass roof light, and a four-metre high metal and glass screen. (020 7993 8542; adearchitecture.co.uk)
3 STYLE AND FUNCTION
A Grade-II listed property has been updated and extended to create a bright living space and a better connection to the rear garden, with fixed glazed units fitted into the gabled-front extension. If Do (020 3645 6789; ifdo.co)
and roof lights. Fixed, frameless roof lights vary in price depending on the thickness of glass and the type of support required but start at around £2,000 per sqm, while electronically operated versions cost around £5,500 per sqm from IQ Glass (01494 722 880; iqglassuk.com). Juliet balconies on upper floors can also mirror the same window design as the ground floor, bringing uniformity to your scheme. Work with your designer to make sure you capture as much light as possible, as this will help save on electricity during the day and create a good feeling of space. Passive solar gain through glazing is ideal during the winter months; however,
incorporating entire elevations of glass units can make the extension more susceptible to overheating. Consider projecting eaves or deep window reveals to maximise the low-altitude sunshine in the winter, as well as provide some effective shading from the high-altitude heat and brightness in the summer.
Following the rules Part L1B of Building Regulations outlines the minimum levels in thermal performance required from the entire property based on the Standard Assessment Procedure (SAP) rating. Therefore, if you want to construct an extension where glazing exceeds 25 per cent of the floor area, then
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you may need to update the insulation and thermal efficiency of the existing property before you can proceed. The installation of renewable technology such as a biomass boiler or solar panels will also win you some extra points. Building Regulations specify minimum U-values of 1.6 W/m2K for windows and roof lights, which are easily achievable using double-glazed units, while triple glazing can offer between 1.0 W/m2K and 0.6 W/m2K. For doors you should aim to achieve a minimum of 1.8 W/m2K.
High technology You can up the attractiveness and efficiency of your glazing by increasing the specifications. High-tech additions to the panes, such as gas fillings that have a low thermal conductivity, will reduce the U-values, and by combining these with triple glazing you’ll create a noise-reducing pane. Low-emissivity coatings can help reduce heat loss, while solar-control glass will decrease how much sun enters into the space. You can also use high-clarity glass with a low iron content, which is what gives glass a turquoise tint. Made from silica, this glazing offers a higher degree of transparency and light transmission, ideal for spaces that receive less light, such as north-facing rooms. GD
4 MODERN TWIST Clad in fibre cement and wrapped in glass, the design of this extension enhances views of a small courtyard space to one side, while the oversized sliding doors provide a seamless link to the main garden. Fraher (020 8291 6947; fraher.co)
5 CLEAR VISION Illumination floods into this rear extension through roof lights and folding sliding doors. The glazed elements of the project cost £22,000. Build Team (020 7495 6561; buildteam.com)
CLEANING AND MAINTENANCE 5
❖ Low-maintenance coatings can be applied to glazing to create an extra smooth surface, for easy hose-down cleaning at a reduced frequency.
❖ You should start cleaning from the top of the building and continue downwards. This will reduce the risk of leaving residue and cleaning solution on your glass.
❖ Avoid using abrasive solutions or materials to clean the glass, as these can cause scratches.
❖ Check the warranty of your glazing – most suppliers will offer a minimum of 10 years, and some will offer up to 20.
persons scheme such as BSI, CERTASS or FENSA.
WORDS IFE ADEDEJI
❖ Ensure your installer is registered with a competent
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Sliding and fixed glazing systems
See the view not the window www.avsglass.co.uk 01843 825573
PROJECTS PROJECTS || Buyer’s Buyers guide guide FLOORING
BUYER’S GUIDE 1
HARD FLOORING Everything you need to know when choosing surfaces for your extension project – from concrete to wood and luxury vinyl
ith so many things to consider, from texture and colour to insulation and maintenance, selecting the right flooring for your project can be overwhelming. Most types of hard flooring are versatile and can be laid in a variety of rooms, but there are exceptions. For example, in a bathroom it will need to be resistant to moisture and humidity, while hallway or kitchen options need to withstand heavy traffic. If you’re also installing underfloor heating (UFH), your flooring choice needs to be compatible and transfer heat efficiently.
Polished concrete Once considered industrial, concrete has quickly become a popular choice in modern homes. It’s extremely tough, durable and can withstand most damage, and is unlikely to be chipped or scratched by everyday use. Ideal for busy areas in the household, it will tolerate plenty of wear and tear. It’s
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available in a range of colours, not just grey, and can also be textured or have patterns carved into it before setting. Consider a polished concrete overlay system rather than traditional concrete slabs – Puur Floors (020 7084 6266; puurfloors.com) offers a bespoke version for residential properties. ‘Our overlay flooring is compatible with UFH systems,’ says Suzanne Driscoll at Puur Floors. ‘It’s seamless with no expansion joints or grout lines and is great for irregularly shaped areas. It’s easy to clean, and due to its naturally inconsistent pattern can yield a more lived-in, urban look.’ Installation takes about a week and prices start at £120 per sqm.
Wood and eco-alternatives Solid wood floorboards offer a natural and authentic feel, but are often an expensive option. However, they’re easy to keep clean, warm underfoot and can last for decades if well-maintained. On
the other hand, engineered wood is made from several layers glued together, but still gives a statement finish while being more affordable. Plus, it is more stable than solid wood and can be used with underfloor heating. Alternatively, opt for wood-effect laminate, a layered surface built around a watertight, high-density fibre core reinforced with a protective outer layer. It’s extremely hard-wearing and long-lasting, and available in many designs in addition to wood, including tile, slate and stone. For an eco-friendly option, consider bamboo, available from Moso Bamboo Surfaces (01793 208 030; mosobamboo surfaces.co.uk), from £13.20 per sqm. Because it’s a fast-growing grass rather than a tree, this makes it a more sustainable alternative to traditional woods.
Tiles and vinyl Tiled flooring is great for all areas, especially kitchens and bathrooms. You
1 MOORISH INFLUENCE The Shoreditch collection from The Baked Tile Company provides a bold patchwork of vibrant tiles, ideal for creating a feature. The tiles are 44cmx44cm and cost £42 per sqm. (029 2035 8409; bakedtiles.co.uk)
2 SLEEK STYLE Bring an open-plan living space together with a poured resin floor that’s completely seamless. Sphere8’s flooring is warm, soft underfoot, durable and available in any colour. Prices start at £216 per sqm. (020 8969 0183; sphere8.com)
2 3 4
3 CONVINCING DESIGN Amtico vinyl tiling is hard-wearing and needs little maintenance. Pictured is the Umbra Eclipse in Random Stone laying pattern, £70 per sqm. (0121 745 0800; amtico.com)
4 WARM WOOD Forming patterns using wooden flooring creates a striking finish. Ted Todd has nearly 400 floors to choose from, such as this Cashmere Chevron design, from its Create Collection, £98.28 per sqm. (01925 284 495; tedtodd.co.uk)
THINGS TO CONSIDER ❖ Cost is a huge factor, so be sure to set yourself a budget before beginning
your search. Also, don’t forget to
This is a great eco-friendly alternative to concrete. Made from sustainable and safe natural biopolymers, its elasticity makes it highly durable and resistant to cracking. It’s warmer underfoot than concrete, seamless, light and only 3-4mm thick, so it can be used on staircases and upper levels of the home. It’s also available in a wide variety of colours. ‘The design possibilities are much greater than with concrete,’ says Isobel Stewart at Sphere8 (020 8969 0183; sphere8.com). ‘You can match the hue to a paint swatch if you want a specific shade.’ Expect to pay around £216 per sqm, although this will depend on the quality of the subfloor and your bespoke needs. GD
measure the area precisely and use a tile or flooring calculator.
❖ Think about the climate of the room before you begin. Does it get a lot of sun? Is it humid or damp? Some flooring will warp in extreme temperatures or environments.
❖ Do you want to install underfloor heating? Check that your chosen material is compatible and be sure to make appropriate preparations before laying it down.
❖ Who will be using the space? For example, concrete is very hard so it isn’t
WORDS LIZZIE HUDSON
can get creative thanks to the variety of sizes, combinations and materials such as porcelain, ceramic and natural stone, as well as pattern designs and grouting colours. ‘There is a plethora of designs available, and they conduct heat and can also be used with underfloor heating,’ says Lesley Taylor of The Baked Tile Company (029 2035 8409; bakedtiles.co.uk). ‘Plus, they don’t require sealing, won’t stain and are very easy to clean.’ For a softer, more flexible finish, consider vinyl tiles, which are made from heat-compressed layers, have a high-quality look and are robust. They’re easy to cut to shape, so you can create a unique floor to suit your renovation or self-build project.
advisable for areas used by children or the elderly, while wood will soon mark in spaces reserved for entertainment.
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PROJECTS | Buyer’s guide EXTERIOR SURFACES
The materials you use create impact and character in an extension, and can either soften the line between old and new, or introduce a more definitive break 1 ZINC LINK The extension to this Victorian home in Highgate has been clad in standing-seam zinc, by Mulroy Architects (020 7267 5123; mulroy.info). Zinc supplier VMZinc (01992 822 288; vmzinc.co.uk) suggests projects such as this one start at £100 per sqm, supplied and fitted
hould your extension blend in, or stand out? It’s a big question, and the answer will help guide the specification of the materials you choose. A seamless addition will match the look of the existing fabric, but it’s more popular to create something that highlights a clear separation from the older building, while harmonising with its rhythm and proportions.
could be echoed in a zinc-clad extension that, while contemporary, has the same matt grey finish. Materials can also act as a visual stepping stone to the outside space. A cream-coloured render could match a light limestone terrace, while timber cladding is a link to nature that can be paired with fencing in a similar style. In this way, the garden feels like a continuation of the extended house.
Design ideas Architects often use similar materials to create a dialogue between old and new, as well as mark a contrast. For example, the lead flashing on a Victorian home
Planning conditions If planning permission is required, conditions may be imposed that will restrict material choices, especially in
sensitive locations like conservation areas. Planners can also request specific products are used and may request a sample for sign-off.
Sticking with standards Using standard materials like render, brickwork or timber cladding has lots of benefits. Being readily available means they’re usually more economical than other options, and will be easily understood by most contractors, so you won’t need a specialist installer. Building materials go in trend cycles like everything else, so classic options are less likely to date. In the end,
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considered detailing is often more important than expensive materials.
Standing out Extensive glazing is usually the principal way that a modern extension distinguishes itself from the original dwelling, but the other materials should play more than just a supporting role. Timber cladding (from around £30 per sqm) is useful for connecting extensions to their surroundings. It needs to be well detailed to look good, finishing neatly around windows, for example. Oak and western red cedar are naturally weather-resistant and weather to grey, and will last longer than Douglas fir or larch, which need to be treated. Suppliers include Silva (020 8150 8055; silvatimber.co.uk) and iWood (01889 597 281; iwood.co.uk). Strong and durable metals such as zinc, aluminium, steel and copper can be used to present a crisp outline. Powder-coated steel and aluminium come in many colours, Corten steel has a rusted appearance, while prepatinated copper comes with a readymade verdigris finish. Metals usually require specialist installers, which can see costs rise. Zinc, aluminium and steel cost £35-£75 per sqm; copper £85-£110 per sqm. Suppliers include SIG (0844 443 4772; sigzincandcopper.co.uk) and Metal Roof Ltd (01227 711 860; metalroof.ltd.uk). GD
2 2 COATED BASE This project in Hampshire by Adam Knibb Architects (01962 680 221; adamknibbarchitects. com) has used polymer render by K Rend (028 2826 0766; k-rend.co.uk)
3 BRICK IS BACK ABN7 Architects (020 7609 6348; abn7 architects.co.uk) chose reclaimed bricks for this extension in a London conservation area. The project used mixed stock bricks, around £1 each, from London Reclaimed Brick Merchants (020 8452 1111; lrbm.com)
4 A CERTAIN SHADE A steel canopy projects from this refurbishment and extension design by Paul Archer Design (020 3668 2668; paul archerdesign.co.uk). Acting as a brise-soleil, it remains true to the industrial look of the original dwelling. Elite Structural Steel (020 8810 8810; elitesteel.co. uk) made the canopy; project cost, £14,000
NEED TO KNOW ❖ Most materials will weather
❖ It’s tricky to replicate new
(01489 797 774; metal-guttering.
in some way. If you want to
brickwork from old, but many
co.uk), where a 2.4m length
keep the external presentation
firms offer a matching service.
of copper guttering costs
pristine with no maintenance,
Try Brickfind (01527 540 099;
£40. Alumasc (01536 383 810;
avoid stark white render,
brickfinduk.co.uk) and Selco
especially in shady, damp
(01564 821 000; selcobw.com).
makes products in any RAL
places. Wood-effect fibre
❖ Ensure your rainwater goods
colour, to smartly match
cement board such as Cedral
complement your extension.
glazing frames. Gutters and
(01283 722 588; cedral.co.uk)
Guttering is available in zinc,
roof drains can be completely
is a low-cost, easy-to-maintain
copper and stainless steel
concealed behind a timber-
alternative to painted boards.
versions from Metal Guttering
clad facade’s outer layer.
WORDS EMILY BROOKS PHOTOGRAPHY MARTIN GARDNER; GRAHAM PARTON; WILL PRYCE
Rendered blockwork is a low-cost and easy external finish, and a simple way to make an extension blend in with an original dwelling. Modern silicone and acrylic renders are more elastic and water-repellent than sand and cement, while insulated render systems have additional energy-efficiency benefits. Brick-and-block construction is another cost-efficient way to build, but it can be difficult to match old and new (see box below). Brick slips are an alternative to solid brick: these slices of masonry are hung on a frame, so they’re compatible with nearly any construction method. Solid brick and brick slips are comparable in cost, from £25-£35 per sqm. Stockists include Ibstock (0844 800 4575; ibstock.com) and Wienerberger (0161 491 8200; wienerberger.co.uk).
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CREATE A MODERN FACADE Transform your home using characterful cladding from Silva Timber Slim, horizontal cladding in western red cedar gives this home a sleek and contemporary finish
pgrading your interiors with a lick of paint, laying new flooring, or reordering the layout are commonplace aspects of a renovation project. But when it comes to transforming the exterior, what are your options? If your masonry, render or pebbledash looks tired, clever use of modern materials can help you to change the appearance completely. Timber cladding provides an easy and efficient way to enhance the character of your home. The fact that no two pieces of wood are the same only adds to the appeal; the myriad grain patterns and colour tones mean you’ll get a unique design. If installed and finished properly, wood cladding can last for decades.
For project inspiration, look at Silva Timber’s collection. It stocks a selection of species including western red cedar, Siberian larch, iroko and heat-treated ThermoWood. You’ll easily find a material that suits the style you are trying to achieve, be it a popular New England look or a contemporary render and timber mix. As wood is naturally versatile, strong and durable, it’s the perfect material for exterior use – plus, of course, it’s recyclable, renewable and sustainable. And choosing timber cladding can bring an additional benefit to your home – that of an extra layer of insulation. For more information, call Silva Timber on 0151 495 3111 or 020 8150 8055, or visit silvatimber.co.uk
1 SIBERIAN LARCH sawfalling tongue and groove, from £22.16 per sqm 2 WESTERN RED CEDAR microline channel cladding, from £54.18 per sqm 3 THERMOWOOD shiplap cladding, from £30.34 per sqm
FIND OUT MORE SILVA TIMBER 0151 495 3111 or 020 8150 8055; silvatimber.co.uk
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BUYER’S GUIDE 1
HEATING OPTIONS Your extension can easily be the warm, inviting and thermally efficient space you want it to be. Discover how to ensure that it suits your needs
ne common concern when planning a modern extension is whether you’ll be able to achieve a bright, light-filled space complete with large expanses of glass, without sacrificing a warm and cosy feeling. These elements needn’t be mutually exclusive, and there are several ways you can maximise your comfort levels indoors.
Planning stages The first thing you should review when planning your extension is whether your existing heating system can be extended into this new space or not. Will your boiler be able to cope with extra radiators, and is it the right size for your new home? A heating engineer will be able to help you with these calculations. If you’re also renovating the rest of the property, it could be a good time to install a new condensing boiler system with fitted controls. Bear in mind that according to Building Regulations Part L,
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homes of 150sqm or more require a minimum of two heating zones.
Thermal efficiency The success of your extension’s heating will depend on the thermal efficiency of the structure, and for this you will need a well-insulated space with no leaks. In the past, buildings with lots of glazing have been known to overheat in summer and lose warmth in winter. Now, high-tech windows have good insulation values and thermal breaks. Choose double-glazed fittings filled with gas, and opt for a low-emissivity coating. Companies such as IQ Glass (01494 722 880; iqglassuk.com) offer a range of suitable products.
Eco options If you need to install a second heating system, try a renewable addition such as an air-source heat pump, which absorbs warmth from the air and runs on electricity. These are mainly used for small properties or spaces, and work
best with underfloor heating (UFH) or low-flow temperature radiators, so they’re a good option for extensions – they can also be connected straight to your existing system and require little intervention. Prices start from around £7,000, and you could receive 11p per kWh in cashback from the Renewable Heat Incentive (RHI), depending on your set-up (ofgem.gov.uk).
Radiators Most UK homes are fitted with radiators, and they’re still a practical way of responding quickly to your heating demands. They are great for retrofit scenarios and can run on gas, electricity or more efficient options. Plus, they’re also one of the cheapest ways to heat your extension. Basic multi-column units start from around £30 at B&Q (0333 014 3098; diy.com).
Underfloor heating UFH provides a comfortable, evenly distributed heat, and operates at a
PROJECTS | Buyer’s guide HEATING
1 FIRED UP Simple but stylish, the new 7470 stove from Morsø, £2,050, adds character and charm and provides efficient heat. (01788 554 410; morsoe.com)
2 KEEP IT CLEAN Underfloor heating is a popular choice among homeowners seeking to establish an energyefficient home. It frees up wall space so it’s great for a seamless look. A similar set-up from Nu-Heat costs about £707. (01404 549 770; nu-heat.co.uk)
3 FULL CONTROL
2 3 4
Hive Active Heating, £249, is a smart thermostat that allows you to control your heating whether you’re inside or outside the home, ensuring that you’re always in control and able to manage the system efficiently. (0800 980 0649; hivehome.com)
4 DISCREET HEAT A practical alternative to underfloor heating, the Trench underfloor radiator, from £613, works best when it’s connected to a renewable heat system such as an air-source heat pump. (01342 302 250; theradiator company.co.uk)
NEED TO KNOW ❖ Ensure that your chosen heating professional is registered with a trade
lower temperature than other heating options. There are systems that have been specifically designed to cater to renovations, from DIY-friendly electric options to water-based systems with low build-up heights. They’re a good solution if you’re planning a large, open-plan room or don’t want to lose any wall space to traditional radiators.
WORDS IFE ADEDEJI
Stoves Fireplaces and stoves are an easy way to add character to your living space. There are biomass options that benefit from the RHI scheme, traditional wood-burning models and easy-to-use electric versions. If you opt for a large size, a new stove could provide enough heat for your existing home as well as
the new sections. Available in a range of formats, prices start at £500 for an electric, wall-hung model at Dimplex (0844 879 3588; dimplex.co.uk).
body, such as HETAS (01684 278 170; hetas.co.uk) or OFTEC (01473 626 298; oftec.org.uk), or is Gas Safe Registered (gassaferegister.co.uk). They should always complete a heat loss
In control From thermostatic radiator valves to house-wide automated systems, controls are vital to ensuring your new space doesn’t consume unnecessary energy. Today’s smart controls can predict when the heating should be turned on and off and even have sophisticated holiday settings so you don’t waste energy while you’re away. Hive Active Heating, £249, by British Gas, can be programmed separately in up to three different heating zones (hivehome.com). GD
calculation before they begin.
❖ Ask your heating engineer whether your new scheme will work with existing thermostats, or if you will be required to install separate new controls.
❖ Make sure that your project meets the Building Regulations Part L requirements.
❖ Find out if you live in a smoke control zone as you may be restricted to the types of substances you can burn – this could rule out stoves and pellet boilers. Check before making a purchase.
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Folding Sliding Door Company.indd 1
PROJECTS | Buyer’s guide LIGHTING
Whether you want to highlight a particular feature or create cosy spaces around your home, the latest lighting technology provides a versatile array of choices 1 MAKE AN ENTRANCE Internal and external LED up- and downlighting, designed by Brilliant Lighting, frames the strong vertical lines of this glazed link. (01845 525 664; brilliantlighting.co.uk)
he positioning, style and strength of your lighting should be considered from the start of any building project, particularly in an extension where you’ll be starting from scratch. Ask your architect to advise you on a clever scheme, or bring in a specialist lighting designer as a consultant. To make the most of recent advances in technology, opt for a smart lighting system. This will add a few hundred pounds to your electric budget in the short-term, but it will be worth it in the long run. Smart lighting uses LED bulbs, which cost more but are cheaper to run,
explains Kathryn Middleton from Lighting Direct. ‘LED lighting is a great, environmentally friendly option,’ she says. ‘The initial cost is higher, but prices start from around £17.99 for a colour-changing bulb, which is still affordable for most people. They also last far longer than traditional incandescent bulbs, so the long-term savings far outweigh the expenditure.’
Form follows function As well as looking great, a perfect lighting scheme should also enhance the functionality of the space it is illuminating, and each room will have
different lighting requirements. ‘Living quarters call for a relaxed distribution of light, while kitchens benefit from whiter, brighter lighting for detailed tasks,’ says Martyn Wherry, director of lighting design company Luxonic. Consequently, it’s vital to think carefully about how you use each room in your home before deciding on the positioning and style of light. In an open-plan kitchen, dining and living space, you’ll want a mix of task, accent and ambient lighting. Bright overhead light will be needed for the cooking areas, while a pendant
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2 STRENGTH IN NUMBERS
A cluster of Upton clear glass pendant lights by Fritz Fryer accentuates the sleek lines of this dining area. The chic shades are hand-blown in the UK and cost £120 each. (01989 567 416; fritzfryer.co.uk)
High-tech options A smart lighting system, where each light is synched to a hub and controlled via an app, is far more versatile than traditional lighting circuits. ‘A smart lighting system should be flexible to your needs, prioritise energy efficiency and give you the tools to enhance the room dependent on requirement; from colour temperature changes, where lights can be made warmer or whiter and cooler, to hue changes,’ advises Wherry. You don’t always have to start from scratch – smart light bulbs such as Philips Hue can be added to existing lighting systems. However, all are reliant on strong internet connectivity throughout your home, and in some areas if you have a weak signal this will need to be addressed. If your smart lighting system has colour and hue-changing options, it makes sense to opt for clear or transparent light shades that will make the most of the colour-changing potential. ‘The best use of these types of bulb would be in lights in corners or reflecting secondary lights in the periphery of any room, unless you want the whole room to change colour,’ says chief creative developer and founder of Vita Copenhagen, Søren Ravn Christensen. ‘I’d also suggest choosing a discreet lamp shade tone, as colourful shades will limit your possibilities with these new playful technologies.’ The bulb itself doesn’t have to steal the show. Choose pendant lights, or wall or floor lights with statement shades, to look as good when they’re not lit and enhance a space, even when the smart bulbs inside are turned off. GD
3 HEAVENS ABOVE Fixtures on this white plastered ceiling reflect light down into the room. Lighting, by Lightmaster Direct (01608 682 115; lightmaster-direct.co. uk); build, by van Ellen + Sheryn. (01364 653 503; vanellensheryn.com)
4 LAYERED LIGHTING
In this kitchen by Hub, pendant lights illuminate the island while LED down-lights fitted under the wall cabinets light up the worktop. (020 7924 2285; hubkitchens.com)
NEED TO KNOW SMART LIGHTING ❖ Some lighting systems have
home by changing the colour
of the light and the brightness.
can be integrated with your
a party mode, which flashes
❖ You can control the music in
home security network – a light
on and off with your music.
your home via your smart light
pattern can be toggled during
❖ More sophisticated systems
system with LED light bulbs that
the day to make your home
can be programmed to
act as Bluetooth speakers.
look occupied, and turn on
transform the mood of your
❖ Systems such as Samsung’s
when a car pulls up outside.
WORDS ANNA TOBIN
or group of pendants will throw a softer light over a breakfast bar or dining table. The lounge section may be best served by gentle puddles of light emanating from a mix of table, wall and floor lamps, although it will be useful to have a few ceiling spotlights as well if the room doubles up as a study or play area. Accent lighting, meanwhile, is particularly useful for enhancing architectural features such as stair treads and ceiling beams. It can be used to create dramatic shadows or avoid them, depending on preference.
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Light Your Own Way www.dowsingandreynolds.com
Dowsing Reynolds.indd 2
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rationel windows.indd 1
WIN A NEW SLATE VENEER SURFACE Lite Stone is giving away £5,000 worth of its best-selling slate veneer Lite Stone gives a natural form to feature walls
t’s the perfect time of year to turn your mind to a big renovation or extension project, whether you’re building a conservatory or laying a new floor. If you’re after a classy stone finish, Lite Stone has a simple and economical way to achieve your look. You may imagine your home with a textured, organic feature wall or stone staircase and want the charm, feel and depth of a natural product, but be put off by the costly price tag. That’s where this Peak Districtbased company comes in, supplying beautiful stone and slate veneer to make your renovation really stand out. Manufactured using German engineering techniques, its Slate Veneer panelling reproduces natural stone on fibreglass backing with polyester adhesive. It’s thinner and lighter in weight than traditional stone and is flexible,
too, so you could use it to clad anything from a kitchen island to the curved outside edge of a hot tub. More cost-effective to install than traditional stone or slate, it’s also simple to cut to size and can be fitted with most types of polymer adhesive or epoxy resin. And you don’t need special tools, training or chemicals, meaning any DIY enthusiast or tradesperson can work their magic. Whatever your project, Lite Stone can help you incorporate a desirable natural stone finish. Grand Designs and Lite Stone have joined forces to offer 20 readers a £250 voucher for products from the Slate Veneer range. This will buy five standard 122x61cm panels, enough for a small feature project. To see the full range and order samples, call 0800 246 5329 or visit lite-stone.co.uk
The slate veneer offers a deluxe stone finish
HOW TO ENTER Head to granddesignsmagazine.com and answer the following question: WHICH OF THE FOLLOWING IS NOT A CHARACTERISTIC OF LITE STONE SLATE VENEER? A: Slate Veneer is thinner and lighter in weight compared to traditional stone tiles B: It’s flexible and can be used for curved feature walls and furniture cladding C: You require special tools and chemicals to use Slate Veneer
Terms and conditions apply. For full details, see granddesignsmagazine.com/competitions. All entries must be submitted online before 21 June 2017. Terms and conditions: The £250 prize voucher is valid only for Lite Stone’s range of standard size 122x61cm Slate Veneer sheets and samples. Not applicable for purchasing accessories or any range of materials other than Lite Stone’s Slate Veneer.
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Gusto Italiano L ap i tec ® i s th e innov a tiv e , “full bodie d” s inte r e d s tone : a unique material with extraordinary properties and a superior aesthetic appeal. A classic Italian product, designed and engineered to provide a practical solution for your daily routine: the ideal kitchen surface.
CONTAINS 100% NATURAL MINERALS
PROJECTS | Kitchens
CLEVER KITCHEN EXTENSION PLANNING Turn your dream kitchen into a reality with a spacious new design – here’s everything you need to know to make it a stress-free success SKILFUL SOLUTIONS Exposed brickwork adds an industrial edge, but means electrical wiring may be on show. Here, the splashback covers cables and protects the bricks. Wood kitchen with Silestone worktops and splashback by 3rdEdition (01793 529 496; 3rdedition.co.uk). Brick extension with folding glass doors, £125,940, Bradley Van Der Straeten (07800 640 456; b-vds.co.uk)
ove the idea of open-plan living, or simply need more space to realise your culinary ambitions? A kitchen extension could be just the ticket. It’s no wonder then that new kitchens and extensions top the list of renovation wish lists, with 36 and 34 per cent of homeowners respectively listing them as the most desirable improvement, according to a survey by Go Compare (gocompare.com). Kitchen extensions can be stressful, but by planning ahead even the largest projects can run more smoothly.
Before you begin Start by finding the right people for the job. If you have a complex
design or large extension in mind you’ll need an architect, as they will be able to advise about planning permission and how to best design the space. For more straightforward projects, you may be able to work out the layout yourself and hire a structural engineer to prepare drawings and calculations. This is essential if you’re planning to remove walls, as you need to ensure the building remains structurally sound. You’ll also need to find a builder and a kitchen designer. It can be useful to take recommendations from each trade or professional – if they’ve worked together before, it can ensure good communication. Similarly,
individuals who haven’t been part of the same team in the past can end up causing delays. By getting everyone on board at the start, you can avoid major changes to plans (and the expense incurred) later on. Keep a budget in mind and also have a contingency plan. Your team will be able to identify if there are any areas you haven’t allowed for and help you manage your budget. Allow around 40 per cent for the build, 30 per cent for fixtures and fittings (including the kitchen itself) and the remainder for planning and architect fees. Next, create a time frame – how long each stage will take and
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SET THE TEMPERATURE It’s best to locate the preparation section of your kitchen away from glass-roofed areas, as they can be too warm to cook under during the warmer months. Place relaxed dining areas below them instead. Elba kitchen in clay and cotton with Corian worktops, from £7,200 for a 14-unit kitchen, John Lewis (0345 604 9049; johnlewis.com)
in what order the work will be done. ‘For an average kitchen extension, planning can take between three to six months and the build between three to four months, depending on the complexity,’ explains Daniele Brutto, co-founder of Hub Kitchens (020 7924 2285; hubkitchens.com). Consider all the stages involved – rip-out, demolition of existing walls, building of new walls, first fix and second fix – as well as how you’ll cope without a kitchen in the interim.
Managing the project Trying to coordinate an extension can be difficult if you haven’t had some team leadership experience or time is against you, so a project manager can be a worthwhile investment. They will run the site, anticipate problems (which can be tricky if it’s your first
project), keep an eye on costs and ensure all trades understand the others’ requirements so work doesn’t overrun. Your architect, builder or kitchen company may offer this service, although it can cost between 15-25 per cent more. ‘Choose a project manager who understands your requirements, can manage the process and organise planning permissions or party wall agreements,’ advises Nicola Burt, founder and MD of Finishing Touch Interior Design (07766 133 727; finishingtouchlondon.com). ‘If you’re managing it yourself, check your local authority planning portal for permitted developments, necessary planning permissions and utility notifications.’ Organising the project will mean coordinating elements you may not have considered, like skips, a digger,
scaffolding and material supply. If you’re trying to save money, consider taking over more straightforward tasks such as removing your old kitchen, painting and tiling.
Rights and regulations Small extensions may not need planning permission if the work is classed as within permitted development (PD) rights. Planning Portal’s interactive house guide helps explain what’s permissible (planning portal.co.uk). Larger extensions will need development approval, which should be granted before any work begins. Contact your local council’s planning department before you submit anything to find out what’s likely to be acceptable and how long the process usually takes – this will help prevent delays. ‘Allow around
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PROJECTS | Kitchens
SMART SUPPORT Supporting pillars don’t have to be a barrier in your design – turn them into a feature by picking a decorative option, such as this reclaimed column. Handleless painted tulipwood and maple Shaker kitchen with Corian worktops, £33,000 (including installation and appliances), Higham Furniture (0800 047 0235; higham.co.uk)
MAXIMISE SPACE Instead of sacrificing a large portion of your garden to a rear extension, consider including a side return to boost your kitchen and dining space. Schüller C kitchen in wood veneer and white and grey laminate with Silestone worktops, from £20,000, Holloways of Ludlow (020 8487 9422; hollowayskitchens.com)
IN FOCUS PROJECT CHECKLIST ❖ Ensure you have enough contingency budget. Even the best-planned projects can encounter unexpected costs.
❖ Think about how your kitchen will flow with the rest of your home – the ways it will be accessed and the positions of doors and windows are key considerations.
❖ Don’t get too tied up with the specifics of the kitchen at the start of your project – it’s all too easy to focus on finishes, but establishing where ducting and services will be required is more important.
❖ Think about moving out during the initial building stages or when it’s likely to be noisy. Trying to live alongside dust and debris can be the most stressful part.
❖ Give yourself plenty of options for electrical supply. Badly located light switches or a lack of power points for appliances will be a constant source of frustration.
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WORDS RACHEL OGDEN PHOTOGRAPHY NICHOLAS YARSLEY; DARREN CHUNG
PROJECTS | Kitchens
eight weeks for planning consent in your timeline,’ says Burt. ‘If you live in a conservation area there may be certain things you aren’t allowed to do. Permission for a Victorian property is sometimes easier if you follow the line of the original house rather than adding a box to the back.’ Regardless of whether they’re built under PD or planning permission, all extensions will require Building Regulations approval – these ensure that your project will be built to the minimum standard for design and construction. If you live in a terraced or semi-detached house and you’re extending towards a boundary wall or excavating near a neighbouring building, you will need a Party Wall Agreement, which can prove timeconsuming. Your neighbours are not obliged to agree to your plans so it’s best to maintain a good relationship with them. Find out more at the HomeOwners Alliance website (hoa.org.uk).
Staying on schedule Kitchen extensions are prone to delays for several reasons, such as the weather,
unavailability of products, structural changes and work taking longer than anticipated. However, careful planning and realistic time frames can offset these. Book contractors well in advance and carry out work during the warmer months. ‘The key is to design and specify the project well so that your choices are desirable and affordable,’ explains Martin Smith, architectural designer from Holloways of Ludlow Architectural Design & Build (020 8487 9440; hollowaysbuild. com). ‘The most common problems occur when the specification changes as the project gets under way.’ Work is divided into first fix and second fix. First fix is the initial construction, from foundations and damp-proofing through to plastering. This will include adding cables for electrics and pipes for plumbing. On a four-month schedule, first fix will usually take around 11-12 weeks. Second fix is the work that comes afterwards – fitting kitchen units, floor covering, final plumbing and electrical work, which takes 3-4 weeks more. Then all that’s left to do is enjoy your new kitchen space. GD
CLEVER CONSTRUCT Different ceiling heights can make incorporating extraction tricky; speak to a kitchen designer to ensure there’s a clear run for ducting through steels or beams. Urbo handleless painted matt lacquer kitchen with solid oak breakfast bar and Blanco Zeus stone worktop kitchen, starts at £35,000, Roundhouse (020 7297 6220; round housedesign.com)
DAYLIGHT SAVING In a north-facing project, use a skylight to allow extra light to flood in alongside bi-fold doors. Glossy finishes will help to bounce additional light around the room. Metz Savanna kitchen, from around £6,800, Caple (0117 938 1900; caple.co.uk)
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Marlborough Light Grey with Dust Grey. Prices from £7,500
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AWARD WINNING KITCHENS
PROJECTS | Bathrooms
MAXIMISE YOUR BATHROOM DESIGN An extra washing facility doesn’t just add value to your home – it’s also a great way to make a new extension more functional and family-friendly
ORDERLY OPEN-PLAN Zone a family bathroom into three areas (bathing, washing and sanitary) to correspond to where the drainage pipes are and allow a space for each function. Mirror frame; vanity washbasin unit and shelves in solid wood; oval bathtub, basin in xcryl with mixer and freestanding bath mixer, total from £6,000, Welchome (020 7610 9108; welchome.co.uk)
xtensions mean more space, but if you’re planning a bigger or new bathroom, how you use the space is just as important as how much you’re adding. Whether it’s an en-suite, wet room, doubleduty utility and bathroom or a room conversion as part of a project, every centimetre counts. Planning ahead and clever design can often be the difference between a scheme that’s rarely used and a room that adds visual and practical appeal.
Maximising your extension potential Renovating an old bathroom usually dictates a similar layout, but there’s
more freedom with an extension as to what you can include and where it can be sited. You may be able to free up space for a walk-in shower or create a room that suits multiple users. Ask yourself what you’d like the new bathroom to contain, what purpose it’s most likely to serve and who’ll be using it. Consider what facilities your property already has – for example, if your main bathroom has a bath, do you need to put one in the extension? Establish your wish list in plenty of time before building commences. ‘More often than not an extension will have to be adapted to get the best possible layout, use of space and the most practical access for
piping,’ explains Martin Nealon, creative director at Angel Martin Interiors (07931 525 913; angel martin.org). ‘This means that every element of the design can be agreed in advance and the drawings passed to the builder so they can build accordingly, saving both time and money.’
Capitalising on the space Having decided what your new bathroom should include, it’s time to think about your layout. At this stage, formulate as many ideas as possible. Creating a new space means you can be more open-minded with your
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IN FOCUS MANAGING YOUR BUDGET ❖ Visit several showrooms to gauge the quality of sanitaryware and get a better understanding of pricing.
❖ Ensure you get multiple quotes from builders and bathroom designers and always ask what each includes.
❖ Remember to budget for additional plumbing or electrical work if it’s not included in your extension build and allow for a contingency of 10 per cent.
❖ Try not to let your budget dictate your design. It may mean shopping around to find the right products at the best price, but will result in a hard-working bathroom scheme that will last.
❖ Invest in the key items such as your shower, but try to save on the finishing touches, which may involve opting for more cost-effective tiles.
DIVIDE AND CONQUER Mixing and matching finishes and materials is crucial for a narrow bathroom extension, to prevent it from having a corridor feel. This example by Sonnemann Toon Architects features a wall-mounted basin and WC pan by Duravit, a Raindance shower by Hansgrohe and Silestone shelving (020 7580 8881; st-arch.co.uk)
TROUBLEFREE TUB The beauty of a bath is that it can fit almost anywhere without the need for standing room. Try tucking one under the eaves of a loft conversion. BetteLoft built-in bath in glazed steel, from £1,756, Bette (0844 800 0547; bette.co.uk)
design. You may come up with concepts that can be adapted, such as sliding doors or making the most of alcoves or boxed-in spaces. Next, think about which rooms the extension connects to and how this will impact the layout, the position of windows and doors, and potential floor space. ‘A well-planned en-suite will take up very little space in an extension but still add value,’ says Sam Ball, marketing services manager at Utopia Bathrooms (01902 406 402; utopiagroup.com). ‘Space will still be at a premium, though, so you may need to take into account reduceddepth furniture and space-saving sanitaryware. Fitted furniture is granddesignsmagazine.com / EXTENSIONS 2017 137
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PROJECTS | Bathrooms
the perfect choice if your room is awkwardly shaped or you have pipes and structural features to disguise.’ A good starting point for the design is the WC, as you’ll need to incorporate a soil pipe. This can be costly, but worthwhile if it results in a more practical layout. Try to avoid placing a WC directly in view of the door and instead tuck it around a corner or conceal it with furniture. Next, think about what you would like as the focal point, whether that’s a bath, shower or vanity unit. In larger rooms you may find that zoning each area pays dividends, by creating clearly defined areas for bathing, personal items and practical
storage. This will help prevent a disjointed feeling, as well as keep related items together – for example, locate towel rails next to a bath or shower rather than put them on the other side of the room. Consider how the space will be lit and heated, how much clearance doors or drawers need to open, whether you need bespoke items made (and how long this will take) and how you’ll move around the room. ‘Many people want to take their future needs into account,’ says Michael Gray, product manager at Grohe UK (0871 200 3414; grohe. co.uk). ‘If you’re planning a bathroom for the future, the layout should avoid
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SEAMLESS SHOWERING If your head height is limited, don’t squander the space by installing a step up – opt for a walk-in shower instead. This bathroom uses bespoke-cut Moleanos white honed limestone tiles with a low-profile, wetroom-style shower tray. A similar design would cost around £7,500 at JLB Property Developments (020 3176 4618; jlbproperty developments.com)
SPACE SOLUTION Make the most of loft space with smart design solutions. By placing twin showers at the highest point and waterproofing the walls and floor, you can create an inviting wetroom. Richmond bath, from £1,635, Victoria + Albert Baths (01952 221 100; vandabaths.com)
narrow access ways, with basins and WCs in accessible spots.’
Plumbing and practicalities Once you have a rough layout in mind, think about services. Wiring and the position of water, waste and soil stacks may impact the locations of different features, as there are restrictions that determine how they can be placed in your bathroom. It may be easy to move waste pipes on some projects, and harder for others. Waste pipes should ideally be connected into an existing soil and vent stack, but if the distance is too great or the route impractical, a new
soil and vent stack or a macerator can be added. ‘Hot and cold water feeds are easy to run through the building using floor voids, loft space or cavity walls but waste pipes are a larger section and require a fall from end to end,’ says Martin Nealon. ‘Your designer may need to stud walls out to hide pipes, or raise floor levels.’ Another issue is an increased demand for water and pressure, with some modern showers emptying a standard water tank in minutes. In this instance, you may need to replace or modify your system so that it can supply the amount of water required at the correct pressure. In addition, long routes of pipework
can cause a delay in hot water supply, so a pump may be necessary. Ceiling heights in a side return or loft extension can be an issue, so use design tricks to work around it. In a loft, for example, place tall items such as a shower at the apex, and use the lower parts of the room for storage, a bathtub or a WC (ensuring there’s enough headroom to stand in front). If space is an issue, consider turning the whole room into a wet room, and swap radiators for underfloor heating to preserve wall space. In all cases, ensure the space is well-lit with a roof window or lighting, and ventilated by an extractor so it’s dry, warm and welcoming. GD
WORDS RACHEL OGDEN PHOTOGRAPHY MAX KIM-BEE
Opt for a wall-mounted unit to add plenty of storage options and help preserve a feeling of space. 1200mm Pursuit wall-hung unit in gloss light grey with Cell vessel basins, £1,558; Reveal illuminated mirror, £442, both available at Roper Rhodes (01225 303 900; roperrhodes.co.uk)
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IDEAS & INSPIRATION
PROJECTS | Interiors
TOP INTERIOR TRENDS Be inspired by the latest looks, designs and ideas for your extension project
SUSPENDED ILLUMINATION Stairwells and high ceilings come into their own with on-trend cluster lighting, ideal for making a statement. Oversized glass orbs hung at different heights look striking over a dining table, and an ordered row of pendants generates interest above an island unit. Edison-style bulbs and coloured flexes can also create a more relaxed look when arranged in a random formation. Made from bone china, the Fin pendant, pictured, from Original BTC is available in groups of three, five or seven. Each light is supplied with two metres of cable that can be resized to create a tight, dramatic cluster or a space-filling shower of light. This seven-pendant version costs ÂŁ1,079. (020 7351 2130; originalbtc.com).
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SHAPE SHIFTING Metro tiles have dominated the market over the past few years, but trends are moving towards more graphic patterns such as creative hexagonal designs and geometrics. Trevor Brown Architect (020 8292 1593; trevorbrownarchitect.co.uk) used kite-shaped Diamond tiles, £165 per sqm, by Solus Ceramics (0121 753 0777; solusceramics.com) with a dark grout to define the pattern and create contrast in this Hackney kitchen. Moorish shapes and fish-scale formations are another current look, influenced by the resurgence of Moroccan-themed interiors. If you’re sticking with metro tiles, lay them vertically in straight lines for a contemporary edge. Designers also predict a trend towards coloured tiles for saturated schemes, following a rise in the
WORDS JO MESSENGER PHOTOGRAPHY ELYSE KENNEDY; ADELINA ILIEV
popularity of darker paint shades.
MODERN METALLIC Warm and subtle, brass is overtaking copper as a top metallic trend. The yellow-gold tones of brass work well in pale, muted schemes, especially when paired with soft greys, white marble and concrete. Brushed and antique finishes create a vintage, industrial feel for brassware, while lighting and accessories look best with a polished surface. Bert & May’s new range of taps is made from solid brass, left unlacquered so it ages naturally. The collection includes these wall-mounted basin taps and spout, £871, as well as brass shower fittings and thermostats (020 3744 0776; bertandmay.com). Also pictured is the oval concrete basin, £1,242.
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PROJECTS | Interiors
MUTED TONES After a period of strong designs in dark woods and bold finishes, bathroom furniture is showing its softer side this year with new ranges emerging in relaxing, muted palettes and lighter, Scandi-inspired shades. The Calidris range from Ripples (0800 107 0700; ripplesbathrooms.com) includes this new soft rose hue and can be scaled to fit large or small spaces. Danish by design, the collection includes narrow vanity units with integrated basins, as well as accessories from mirrors to shelving. Team this blush shade with brushed metallics and balance it with tonal greys such as pale silver or dark slate. Alternatively, pair powder blue with taupe and pale wood.
FRESH MATERIAL As the popularity for plywood cabinetry continues, advances in technology mean that it can now be manufactured in different colours. This kitchen project by NimTim Architects (020 8693 0878; nimtim.co.uk) features doors made from KoskiDecor plywood board with a translucent, coloured film on both sides that leaves the wood grain visible. Itâ€™s made by Koskisen (koskisen.com) and is suitable for furniture and joinery. Available in a range of colours, from pastels to bolder shades, its smooth surfaces are perfect for interior and exterior projects. The chevron pattern splashback echoes the angled wood flooring and can be found throughout the tiling and patterning in the rest of this project. A similar kitchen would start from around ÂŁ20,000. GD
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The Marseille Cyprium - ÂŁ2,595.00
www.castironbath.co.uk | 01723 585896 | firstname.lastname@example.org
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DIRECTORY DIRECTORY| |Contacts Contacts
A Z TO
OF ARCHITECTS AND DESIGNERS Looking for professional help to get your project off the ground? Look no further than our carefully compiled round-up of the top specialists in the UK
a shared enthusiasm for low-carbon building.
❖ 1ST ARCHITECTS
Choose it for An eco-friendly project.
Check out their side return on page 80.
Studio 1, 128 Robinson Road, London SW17 (01383 417 509; 1starchitects.com)
❖ ANDREW MULROY ARCHITECTS
❖ British Institute of Interior Design
This nationwide firm makes the design
8 Deane House Studios, 27 Greenwood Place,
(020 7628 0255; biid.org.uk)
process straightforward for first-time builders.
London NW5 (020 7267 5123; mulroy.info)
Its website offers a useful directory of
Choose it for Designing your first home.
The company has a wealth of residential
interior designers, as well as suppliers.
experience and specialises in eco-homes.
❖ Chartered Institute of Architectural
❖ 3S ARCHITECTS AND DESIGNERS
Choose it for A fun approach to
Technologists (020 7278 2206;
17a Princes Road, Richmond TW10
environmentally sensitive architecture.
(020 8332 9966; 3s-ad.com)
Specialists in the science of
With nominations from RIBA, you’ll be in safe
❖ APROPOS CONSERVATORIES
hands with this international firm.
Greenside House, Richmond Street,
❖ Royal Incorporation of Architects
Choose it for Striking, modern extensions.
Ashton-Under-Lyne, Manchester OL6
in Scotland (0131 229 7545;
architecture, design and construction.
(0800 328 0033; aproposconservatories.co.uk)
❖ A2 STUDIO
This structural glass design agency is great
Search for architects and suppliers,
46b Tottenham Lane, London N8
for bold, glazed extension projects.
and look for members with
(020 7998 9066; a2studio.co.uk)
Choose it for Statement glazing.
architecture and interior design.
❖ AR DESIGN STUDIO
(020 7580 5533; architecture.com)
Choose it for A complete interior refit.
20 Little Minster Street, Winchester SO23
RIBA champions better buildings
(01962 864 545; ardesignstudio.co.uk)
and has more than 3,000
❖ ALCHEMILLA ARCHITECTS
Bespoke extensions are one of AR’s specialities
The Paddock, Blindmoor, Buckland St Mary,
– an in-house joinery team will design fitted
Chard, Somerset TA20 (01460 234 149;
furniture for your space. Its multi-height
extension in Winchester is on page 92.
❖ ARCHITECT YOUR HOME
Located in Somerset, this practice specialises
Choose it for A friendly, accessible approach.
(0800 849 8505; architect-yourhome.com)
❖ Royal Institute of British Architects
A design collaborative with expertise in
in conservation projects and listed buildings. Choose it for Sympathetic conversions.
This unique, user-friendly service unites 23 ❖ ARCHITECTURE FOR LONDON
architects across the country and assigns
82 Clerkenwell Road, London EC1
a personal account manager to each project.
❖ ALEXANDER OWEN ARCHITECTURE
(020 3637 4236; architectureforlondon.com)
Choose it for A pay-as-you-go
D221 Parkhall Business Centre, 40 Martell
AFL worked with a pair of neighbours to
Road, London SE11 (07941 692 625;
create two individual double-height
extensions on page 100.
❖ BACA HOMES
Richard Bridges and James Webster, the old
Choose it for Navigating London’s
Unit 1, 199 Long Lane, London SE1
school friends behind Alexander Owen, have
complex planning laws.
(020 7397 5620; bacahomes.co.uk) granddesignsmagazine.com / EXTENSIONS 2017 147
DIRECTORY | Contacts Baca’s flood-resilient home in Watford is the first of its kind, demonstrating its dedication to finding new solutions in a changing climate. Choose it for Flood-risk areas. ❖ BBM SUSTAINABLE DESIGN Cooksbridge Station House, Cooksbridge, East Sussex BN8 (01273 400 319; bbm-architects.co.uk) Known for sustainable designs and urban regeneration, this East Sussex practice won RIBA’s South East Regional Award in 2016. Choose it for Environmentally friendly design.
This rear addition by Granit has provided a brand-new kitchen-dining-living space
❖ BENCH ARCHITECTS 23 Terrace Road, Buxton, Derbyshire SK17 (01298 23991; bencharchitects.co.uk)
❖ CDMS ARCHITECTS
❖ FRAHER ARCHITECTS
This firm specialises in conservation and
Montpelier House, 99 Montpelier Road,
The Studio, 14 Gabriel Street, London SE23
modern extensions to historic buildings.
Brighton, East Sussex BN1 (01273 220 407;
(020 8291 6947; fraher.co)
Choose it for Projects involving sensitive
Joe Fraher and Lizzie Webster established this
or protected properties.
CDMS offers well-designed, sustainable
environmentally conscious practice in 2009.
living spaces, using local materials.
See their imaginative side return on page 76.
❖ BELSIZE ARCHITECTS
Choose it for A full range of architectural
Choose it for An eco-conscious approach
48 Parkhill Road, London NW3
and interior design services.
to modern design.
(020 7482 4420; belsizearchitects.com) Its work to a Grade II*-listed terraced house
❖ CHARLES BARCLAY ARCHITECTS
in Regent’s Park is featured on page 68.
74 Josephine Avenue, London SW2
Choose it for Heritage extension projects.
(020 8674 0037; cbarchitects.co.uk)
❖ GILES PIKE ARCHITECTS
A well-known studio with an extensive
537 Battersea Park Road, London SW11
❖ BRIAN O’TUAMA
portfolio of elegant residential projects.
(020 7924 6257; gilespike.com)
Unit 18, 14 Southgate Road, London N1
Choose it for Clean-cut, minimalist designs.
Named one of the top 25 residential
Its striking basement project is on page 64.
has completed over 700 projects.
Choose it for Sleek, space-saving ideas.
❖ DONALD ARCHITECTURE
(020 7923 4857; brianotuama.com) Takes pride in finding innovative solutions.
architects by the Sunday Times, Giles Pike Choose it for A wealth of design experience.
205 Albert Mill, 50 Ellesmere Street, Manchester
❖ GRANIT ARCHITECTS
❖ BURRELL & MISTRY
M15 (07786 230 900; donaldarchitecture.com)
Studios 18-19, 16 Porteus Place, London SW4
7a Lamb’s Conduit Passage, London WC1
Led by Scott Donald, who can provide
(020 7924 4555; granit.co.uk)
(020 7092 3080; burrellmistry.com)
a full service for your renovation, remodelling,
This London firm specialises in listed and
This award-winning studio specialises in
extension or new-build project.
Paragraph 55 residential projects.
Choose it for Modern residential architecture.
Choose it for Experience of a wide range
Choose it for Passive house design.
of styles. ❖ ECOSPACE STUDIOS
❖ CAMERON WEBSTER
5a-6a Iliffe Yard, London SE17 (020 7703 4004;
❖ GREGORY PHILLIPS ARCHITECTS
The Printworks, 10 Otago Street, Glasgow G12
17 Savile Row, London W1 (020 7724 3040;
(0141 330 9898; cameronwebster.com)
Create an energy-efficient garden room
Stuart Cameron and Miranda Webster
that will optimise your outdoor space.
Gregory Phillips has won many accolades for
have a particular interest in the renovation
Choose it for Modular, prefab studios.
and adaptation of period buildings. Choose it for Eco-friendly updates.
interior design, including the Sunday Times British Homes and RIBA awards.
❖ EWAN CAMERON ARCHITECTS
Choose it for Interiors expertise.
The Lighthouse Centre for Design, ❖ CASA ARCHITECTS
11 Mitchell Lane, Glasgow G1 (0141 244 0183;
❖ GUTTFIELD ARCHITECTURE
Bath Brewery, Toll Bridge Road, Bath BA1
6 Station Terrace, Twyford, Berkshire RG10
(01225 851 871; casa-architects.co.uk)
Led by the accredited passive house designer
(020 7043 1016; guttfieldarchitecture.co.uk)
CaSA is dedicated to combining modern
Ewan Cameron, this Scottish practice has
This firm is known for striking designs and
design with sound sustainable principles.
offices in Glasgow and rural Perthshire.
clever interior architecture.
Choose it for Eco-conscious architecture.
Choose it for Energy-efficient homes.
Choose it for Eco-friendly design solutions.
148 EXTENSIONS 2017 / granddesignsmagazine.com
❖ HOLLOWAYS OF LUDLOW
❖ LA HALLY ARCHITECT
❖ McGONIGLE McGRATH
ARCHITECTURAL DESIGN & BUILD
Talbot House, 34 Staple Gardens, Winchester,
B101 Portview, 310 Newtownards
75 Sheen Lane, London SW14 (020 8487 9440;
Hampshire SO23 (01962 843 500; lahally.com)
Road, Belfast BT4 (028 9046 0838;
This young practice aims to deliver buildings
From kitchen extensions to restorations, this
that let their owners experience joy and
A broad body of award-winning work
firm is known for its high-quality finish. We
beauty in the clever use of detailing.
includes projects with listed buildings and
love the new living space on page 44.
Choose it for Energetic, dynamic design.
homes in conservation areas.
Choose it for A flexible approach to design.
Choose it for A consideration of function. ❖ LBMV ARCHITECTS
❖ HOBAN DESIGN
27 Elizabeth Mews, London NW3
❖ MOLE ARCHITECTS
Eldon Park House, 43 Church Road, London
(020 7483 3880; lbmvarchitects.com)
52 Burleigh Street, Cambridge CB1
SW19 (020 8947 0849; hobandesign.co.uk)
Experts in glass-box extensions that bring
(01223 913 012; molearchitects.co.uk)
A London-based practice known for
more light into your home.
Mole Architects was shortlisted for the
high-end, sophisticated projects.
Choose it for A bright, light-filled space.
Manser Medal in 2012 and has completed
Choose it for Luxurious architecture.
many inspiring extension projects. ❖ LIPTON PLANT ARCHITECTS
Choose it for Inspired use of textures.
❖ HUDSON ARCHITECTS
Seatem House, 39 Moreland Street, London
37 St Andrews Street, Norwich, Norfolk NR2
EC1 (020 7288 1333; lparchitects.co.uk)
❖ MSA ARCHITECTS
(01603 766 220; hudsonarchitects.co.uk)
Urban extensions are this firm’s speciality.
89 High Street, Newton Le Willows, WA12
This Norwich practice designed a barn
Its impressive multi-height glazed extension
(01925 299 881; msaarchitects.co.uk)
conversion that featured on Grand Designs.
features on the front cover and on page 96.
An innovative design practice with an
Choose it for Converting barns.
Choose it for Smart, glazed extensions.
enthusiasm for carefully thought-out
❖ ID ARCHITECTS
❖ LLOWARCH LLOWARCH ARCHITECTS
Blackwood Studio, Wilton Road,
147 O’Donnell Court, The Brunswick Centre,
Humberston, Grimsby, Lincolnshire DN36
London WC1 (020 7833 2883; llarchitects.co.uk)
❖ MUSTARD ARCHITECTS
(01472 211 144; idarchitecture.co.uk)
Specialising in challenging urban projects,
Studio CC2.1, V22 Studios, 5 Crown
Impressive glazing and black timber
this practice offers a complete design,
Close, London E3 (020 8533 8162;
cladding add wow factor to the generous
build and interiors service.
single-storey extension on page 48.
Choose it for Carefully crafted materials.
Mustard Architects creates award-winning,
Choose it for A diverse range of projects.
Choose it for A full range of services.
sustainable architecture, crafting projects to
❖ JEFF KAHANE + ASSOCIATES
136 Royal College Street, London NW1
❖ MANALO & WHITE ARCHITECTS
(020 7336 0990; jeffkahane.com)
Unit 301, Metropolitan Wharf, 70 Wapping
❖ MW ARCHITECTS
This award-winning firm has remained
Wall, London E1 (020 7265 4945;
136-148 Tooley Street, London, SE1
compact to deliver high standards of design
(020 7407 6767; mwarchitects.co.uk)
and personal involvement with its projects.
Manalo & White has completed a range
Founded by Matthew Wood in 2009,
Choose it for A small, dedicated team.
of extensions in Norfolk and London.
MW Architects is a young, dynamic firm
Choose it for A carefully crafted approach.
passionate about improving lives through
❖ JONATHAN TUCKEY DESIGN
ensure they are functional yet inspirational. Choose it for Sustainability-driven projects.
good design. See its single-height extension
Unit 44, Pall Mall Deposit, 124 Barlby
❖ McLAREN EXCELL
project on page 58.
Road, London W10 (020 8960 1909;
Unit 3.07 The Plaza, 535 Kings Road, London
Choose it for A back-to-basics approach.
SW10 (020 3598 0673; mclarenexcell.com)
Jonathan Tuckey remodels old buildings
It has only been around since 2010, but this
❖ NEIL DUSHEIKO ARCHITECTS
for modern use, blending new elements
practice has quickly developed a reputation
5 Baldwin Terrace, London N1
with original features.
for its calm, nuanced approach.
(020 7354 8106; neildusheiko.com)
Choose it for Radical transformations of
Choose it for Sophisticated craftsmanship.
Neil Dusheiko’s design studio works on small,
carefully crafted projects full of rich details. ❖ McGARRY-MOON ARCHITECTS
Choose it for Excellent use of natural
❖ KNOX BHAVAN ARCHITECTS
9 Fallahogey Road, Kilrea, Coleraine BT51
materials and light.
69 Choumert Road, London SE15
(028 2954 2323; mcgarry-moon.com)
(020 7635 9911; knoxbhavan.co.uk)
McGarry-Moon is an award-winning
❖ NIC HOWETT
For cutting-edge, modern style and innovative
Northern Irish practice. We especially love
165a Camberwell Road, London SE5
materials, pay this practice a visit – it will help
its Loughloughan barn conversion.
(07977 566 092; nichowett.co.uk)
you integrate new techniques into older builds.
Choose it for Striking homes tailored to
Up and coming architect Nic Howett, who
Choose it for Ambitious builds.
suit their locations.
works for Jonathan Tuckey Design, created granddesignsmagazine.com / EXTENSIONS 2017 149
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DIRECTORY | Contacts a prefabricated timber structure as a flexible
❖ PAUL ARCHER DESIGN
diner extension on page 72 creates a clear
and inspiring garden room retreat for old
103 Farringdon Road, London EC1
separation between old and new.
family friends on page 106.
(020 3668 2668; paularcherdesign.co.uk)
Choose it for A personal service.
Choose it for Cost-saving, innovative design.
Founded in 1999, this practice has a wealth of experience, and aims to apply green
❖ ROBERT DYE ARCHITECTS
❖ NICOLAS TYE ARCHITECTS
solutions to a modernist aesthetic. See its
4 Ella Mews, Cressy Road, London NW3
The Long Barn Studio, Limbersey Lane,
single-storey extension on page 54.
(020 7267 9388; robertdye.com)
Maulden, Bedfordshire MK45 (01525 406 677;
Choose it for Award-winning designers.
Robert Dye’s extensive portfolio combines
innovative design with an individual,
This award-winning practice looks for simple,
❖ PEEK ARCHITECTURE + DESIGN
effective design solutions to even the most
Noland House, 12-13 Poland Street, London
Choose it for A friendly, professional service.
W1 (020 7734 3094; peekarchitecture.co.uk)
Choose it for A considered approach.
This Soho practice has many long-term clients,
❖ NIGEL BIRD ARCHITECTS
❖ RURAL DESIGN ARCHITECTS
which is a testament to its excellent service.
The Green, Portree, Isle of Skye IV51
Choose it for Luxurious interiors.
(01478 613 379; ruraldesign.co.uk)
2 Riding House Street, London W1
When the award-winning Kendram
(020 3770 7571; nigelbirdarchitects.co.uk)
❖ PITMAN TOZER ARCHITECTS
Turf house featured on Grand Designs,
A successful architectural practice that
117 Great Western Studios, 65 Alfred Road,
Kevin McCloud named it as one of his
encourages its clients to sit back and relax
London W2 (020 3214 3255; pitmantozer.com)
while the team looks after the build.
Tim Pitman and Luke Tozer founded their
Choose it for A sustainable fusion of
Choose it for Comprehensive management
practice in 2002. We love the Lateral House
contemporary and traditional styles.
of your project.
– a transformed Victorian property. Choose it for Optimising small spaces.
The Dispensary, 5-6 The Square, Winchester,
❖ R2 STUDIO ARCHITECTS
❖ S2 DESIGN ARCHITECTS
Hampshire SO23 (01962 865 344;
Studio D116, 62 Tritton Road, London SE21
Studio 2, St Andrews Road, Montpelier, Bristol
(020 8766 6116; r2Studio.co.uk)
BS6 (0117 944 1006; s2architects.co.uk)
OB Architecture will guide you through every
R2 was shortlisted for three of this year’s
Long-established, S2 Design Architects offers
step of your build project.
Don’t Move, Improve! awards. Its low-energy
a comprehensive range of architectural
Choose it for A passionate, dedicated team.
refurbishment of a family home includes
services. Sustainability and contextual
a loft extension, featured on page 88, which
sensitivity form the basis of its approach.
❖ OLIVER CHAPMAN ARCHITECTS
combines new materials with bold colour.
Choose it for Expertise in working with
36 St Mary’s Street, Edinburgh EH1
Choose it for Innovative design.
A practice with a methodical approach,
❖ RB STUDIO
❖ SCENARIO ARCHITECTURE
which prides itself on problem-solving.
21a Haven Road, Poole, Dorset BH13
10a Branch Place, London N1
Choose it for Adapting living spaces for
(01202 700 032; rbstudio.co.uk)
(020 7686 3445; scenarioarchitecture.com)
people with disabilities.
This Poole firm believes that good design
Scenario’s diverse extensions create an
should be available to everyone. Its kitchen/
open interaction between indoors and out.
❖ OB ARCHITECTURE
(0131 477 4513; oliverchapmanarchitects.com)
❖ OLLIER SMURTHWAITE ARCHITECTS 40 King Street, Manchester M2 (0161 883 0838; olliersmurthwaite.com) This practice has a range of projects on its
See Paul Archer's single-storey rear extension on page 54
books, all featuring contemporary glazing and beautifully crafted joinery. Choose it for Top-notch design.
P-R ❖ PATRICK LEWIS ARCHITECTS Studio 51, Hackney Downs Studios, Amhurst Terrace, London E8 (020 3095 9707; patricklewisarchitects.com) This firm collaborates with artists, textile designers and furniture makers to offer a complete service. Its addition to a Grade II-listed Georgian house features on page 52. granddesignsmagazine.com / EXTENSIONS 2017 151
DIRECTORY | Contacts Choose it for A unique way of thinking.
A small team with big ideas and a passion
Choose it for Garden rooms that make
for design, Scottish firm Somner Macdonald
clever use of tight space.
❖ SHAW & JAGGER ARCHITECTS
takes pride in its distinctly personal approach
14-15 Regent Parade, Harrogate,
to residential architecture.
❖ TATE HARMER
North Yorkshire HG1 (01423 532 950;
Choose it for A friendly, individual service.
G1, B2 Stamford Works, 3 Gillett Street,
London N16 (020 7241 7481; tateharmer.com)
Shaw & Jagger Architects specialises in
❖ SPACE ARCHITECTURE + PLANNING
This firm’s approach is characterised by its
renovating buildings that are ruined or have
4 Manchester Road, Chorlton, Manchester
dedication to sustainability, and it has
been deemed commercially unviable.
M21 (0161 713 2718; spaceap.com)
experience in working with sensitive projects.
Choose it for Wrecks with potential.
This practice offers expertise in large projects
Choose it for Schemes that involve unique
with tricky planning applications.
landscapes or historic buildings.
❖ STEPHEN TURVIL ARCHITECTS
Choose it for Functional yet aesthetic design. ❖ TDO ARCHITECTURE
The Herne, 2 Forest Hill Road, London SE22 (020 8299 6169; stephenturvilarchitects.com)
❖ SPACE PROGRAM ARCHITECTURE
80 Great Suffolk Street, London SE1
Specialists in residential refurbishments and
7 Barton Road, Headington, Oxfordshire OX3
(020 7928 8787; tdoarchitecture.com)
extensions, this firm reconfigured the ground
(07891 608 893; space-program.co.uk)
Specialising in low-cost, one-off projects,
floor of a family home on page 62.
This practice specialises in residential
including a garden house that cantilevers
Choose it for Thoughtful conversions.
extensions, side returns and lofts, creating
over a pond in Hampshire, designed and
practical, fun spaces. See its reconfiguration
built for just £7,500.
❖ SIMON ASTRIDGE
of a Victorian residence on page 82.
Choose it for Imaginative, resourceful design.
Unit 5.08, Clerkenwell Workshops,
Choose it for Architecture with character. ❖ THOMAS DE CRUZ
27-31 Clerkenwell Close, London EC1 (020 3432 9772; simonastridge.com)
❖ STAN BOLT: ARCHITECT
80-82 Chiswick High Road, Chiswick, London
This firm specialises in demolishing old
The Old Museum, Higher Street,
W4 (020 8995 8100; thomasdecruz.com)
extensions to prepare for new structures.
Brixham, Devon TQ5 (01803 852 588;
This firm is best known for creating
We love its recent Clay House loft conversion
contemporary, uplifting homes in traditional
in north London, which features on page 84.
Established in 1993 and based in the South
Choose it for Improving an existing build.
West, this practice produces imaginative,
Choose it for Reburbishments and extensions
bold and well-crafted designs.
for listed buildings.
❖ SNOOK ARCHITECTS
Choose it for Extending coastal properties. ❖ TRANSFORM ARCHITECTS
10 Duke Street, Liverpool L1 (0151 707 0100; snookarchitects.com)
❖ SURMAN WESTON
12c Bank Street, Ossett, Wakefield,
This RIBA award-winning practice has
Studio S2, 23-27 Arcola Street, London E8
West Yorkshire WF5 (01924 275 594;
garnered accolades for its small projects.
(020 3816 0242; surmanweston.com)
Choose it for Ambitious regional builds.
Shortlisted for RIBA’s London Award 2017,
Winner of LABC’s Building Excellence
Tom Surman and Percy Weston create
Awards 2017 (East Midlands) for a humble
❖ SOMNER MACDONALD ARCHITECTS
innovative architecture in ordinary spaces.
bungalow that was transformed into
126/2 Calton Road, Edinburgh EH8
Check out their cork-clad garden room
a two-storey home with a glazed,
(0131 558 7575; somnermacdonald.co.uk)
on page 104.
grey-rendered extension. Choose it for Imaginative extensions.
Kitchen available from Roundhouse (020 7297 6620; roundhousedesign.com)
❖ VAN ELLEN + SHERYN 5 Station Yard, Ashburton, Newton Abbot, Devon TQ13 (01364 653 503; vanellensheryn.com) It can be difficult to get planning permission for listed sites, so look to this firm for assistance. Choose it for Tricky heritage conversions. ❖ VENNER:LUCAS ARCHITECTS 6 Cornford Grove, London SW12 (020 8673 0291; vennerlucas.co.uk) Committed to finding design solutions to sustainability problems, its most notable projects are a zero-carbon house and a home that cuts emissions by 80 per cent. Choose it for Eco-conscious design. GD
152 EXTENSIONS 2017 / granddesignsmagazine.com
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Bromleighs Anything less is a compromise
MoreLight Glazing Ltd Structural Glazing Specialist
Bromleighs offer an extensive range of switches and electrical accessories to suit both period and contemporary interiors. Their Forged and Profile Collections are hand-made at their workshop in Cornwall. Bromleighs also offer a wide range of interior and exterior lighting and architectural hardware. For a current brochure or further information please call the team on 01208 79490 or visit www.bromleighs.com
Bespoke Frameless glass structures t: 01268 425 670 E: email@example.com
Iro nmo nge r y, Li gh ti ng , Mate r i als, Rugs
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BESPOKE STAIRCASES & JOINERY
BESPOKE STAIRCASES, CURVED STAIRCASES AND ELLIPTICAL STAIRS FROM WARWICKSHIRE BASED JOINERY MANUFACTURERS MEER END Meer End Bespoke Staircases and Joinery Manufacturers have been established for more than 20 years. But the philosophy behind the way we approach our craft is timeless. We design and manufacture high quality bespoke staircases, curved staircases and elliptical stairs.
MEER END STAIRCASES & JOINERY St Michael Stud | Meer End Road | Meer End | Nr Kenilworth | Warwickshire | CV8 1PU Tel +44 (0)1676 534226 or +44 (0)1676 533679 | Fax +44 (0)1676 532224 | Email firstname.lastname@example.org
T: 0115 979 4448 E: email@example.com
Masters of light and shade
Find out more at SILVERWOODshutters.co.uk Email info@SILVERWOODshutters.co.uk
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Sh a d in g , Shutter s , Sta ir s
Ventilation with Heat Recovery Take Control, at Home or “On the Go” Adroit Cloud INTERNET
Call: 01494 560 800
SLIMMEST THERMALLY BROKEN 'A+10 RATED' METAL WINDOWS AND DOORS AVAILABLE.
Fresh, warmed air
90% heat recovery
Triple filter design
100% summer by-pass
Passive House Certified Visit: airflow.com
01730 89 47 45 firstname.lastname@example.org www.metthermwindows.co.uk facebook.com/MetThermWindows
BESPOKE DESIGN | WELDED CORNERS | HANDMADE | RAL CLASSIC COLOUR
S TA I R C A S E S | B A L U S T R A D E | A R C H I T E C T U R A L F E AT U R E S
W W W. F L I G H T D E S I G N . C O . U K 020 8980 1000
UK Manufacturer of high quality hardwood bespoke and standard bifold doors, hinged doors and casement windows
www.arborbifold.co.uk tel: 01454 270039
St air s, Til e s, Ve nti lati on, W i ndows, Woo d p ro d u c t s
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TWIST AND SHOUT When he designed this long kitchen extension for a home in a suburb of Sydney, local architect Nick Bell wanted daylight to flood into the addition at all times of day. The solution was a striking series of stepped rooflights, which gradually progress from flat to vertical in concertina style along the full length of the vaulted ceiling. As the sun travels across the sky it moves from one window to the next, ensuring there is always a stream of direct natural light coming into the space. The glazing is framed in matt black steel, which provides a textural contrast to the warm, timber cladding of the ceiling and the smooth, grey polished concrete
WORDS EMILY SEYMOUR PHOTOGRAPHY SIMON WHITBREAD
floor. (nickbellarchitects.com) GD
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“ARCHITECTURE SHOULD BE AESTHETICALLY PLEASING. BUT IT ’S ALL THE LIT TLE DETAILS THAT MAKE A DESIGN TRULY BEAUTIFUL” As the original creators of the contemporary modular studio, we know more about them than anyone else. We know how to tailor them to every possible need . We know how to adapt them so they fit seamlessly into any environment, spatially and aesthetically. And as architects, we know how to design bespoke buildings using Modern Methods of Construction. In fact, the only thing we don’t know about modular flexible buildings is how yours looks. But that’s because we haven’t met you yet.
Call us on 020 7703 4004 or email us at email@example.com
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As award winning architects and designers we aspire to create extraordinary buildings and spaces for our clients, sometimes from the most difficult of design briefs. Central to our philosophy is that good design should reflect the needs of our clients and respond to the surrounding environment. Pushing the boundaries of design we are able to achieve timeless, highly innovative and sustainable projects. We offer a complete design service from initial advice through to the completion of your project. We complete works all over the UK and internationally. We would welcome the opportunity to discuss your potential project t: 01525 406677 t: 0121 227 9725 e: firstname.lastname@example.org w: www.nicolastyearchitects.co.uk
Main photo- Kimbrook house, Cambridgeshire
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Published on Jan 17, 2018