Danielle Landrum 33275135 Kimberly Ward, Leo Jack Green, Danielle Landrum, Gemma Walker. Professional Studies Report. Norwich Cathedral Hostry.
Contents. Project Description 1.1 Design 1.1.1 Use 1.1.2 Amount 1.1.3 Layout 1.1.4 Scale 1.1.5 Landscaping 1.1.6 Appearance 1.2 Access 1.2.1 Vehicular and transport links 1.2.2 Inclusive access 2.1 Safety in Design and Construction 2.1.1 Health and Safety 2.1.2 Minimising Risk in Design 2.1.3 Minimising Risk in Construction 3.1 Planning Guidelines 3.1.1 Unitary Development Planning (UDP)/ Local Development Framework 3.1.2 Local Planning Policy 3.2 Building Response to Planning Guidelines 3.2.1 Building Response to UDP/LDF 3.2.2 Building Response to Planning Council Meetings and/or Local Planning Policy 4.1 Finance and Costing 4.1.1 Finance
4.1.2 Costing for Construction
5.1 Critical Response 5.1.2 Design and Access 5.1.3 Health and Safety 5.1.4 Planning 5.1.5 Finance References and Bibliography
Project Description. The Hostry is an addition to Norwich Cathedral, Norwich, East Anglia. Part of a renovation to the Cathedral, Hopkins Architects built a Refectory for the Cathedral in 2004. The Hostry was added in 2009.
1. Cathedral. 2. Cloisters. 3. Hostry. 4. Refectory. 5. Upper Close
Project Description. The Hostry aims to tie together the old and the new and to reinvigorate the Cathedral, whilst complementing the Refectory built in 2004. Built within the footprint of the monastic Hostry it incorporates some of the remaining fragments of wall. The mission statement: â€˜A meeting place where people of all ages and backgrounds are made welcome and where learning and discovery enhance a visit to Norwich Cathedralâ€™. The brief was to: -Create a building of such architectural merit that it would enhance and respect the Cathedral complex, -Increase visitor access across the precinct -Resolve disabled access -Be sensitive to existing and theoretical archaeological remains present on site.
1.1.1 Use. The Ground Floor of the Hostry provides a new entrance. It also has a variety of other uses, showcasing the building as multifunctional.
Key. 1. Locutory 2. North Courtyard 3. Exhibition Space 4. Hostry Entrance 5. Education 6. School Garden 7. Refectory 8. West Cloister
1.1.1 Use. Key 1 Locutory 2 North Courtyard 3 Exhibition Space 4 Hostry Entrance 5 Education 6 Community Room 7 Music Library 8 Song Room 9 South Terrace
Longitudinal Section through building
1.1.1 Use. Locutory.
The Locutory is situated just to the right of the Hostry and connected by the North courtyard. The locutory is used as a place to welcome visitors and tell them the story of Norwich Cathedral through a short film projected on the wall and plasma screens. An interactive touch screen computer is also located here which provides an interactive experience for visitors.
1.1.1 Use. North Courtyard (Japanese Garden).
The Japanese garden is a connecting point from the Hostry to the Loctory. It cannot be entered by visitors but is a visual addition to the building.
1.1.1 Use. Exhibition Space.
The exhibition space is frequently used, and draws visitors into the Cathedral whilst proving a space for local artists to get their work seen. The space is very flexible and can be utilised for other activities, however is primarily a gallery.
1.1.1 Use. Hostry Entrance.
The entrance to the building is a transitional mix between old and new. The space is open, light and inviting. The spacious layout accommodates for many visitors.
1.1.1 Use. Education Area.
The education room, is another community facility, that can be used for a multitude of different activities.
1.1.1 Use. The First Floor of the Hostry highlights that the building is used as a community centre, a school, a library as well as the gateway to the Cathedral.
Key. 1. Community Room 2. Bridge 3. Music Library 4. Song School 5. Library 6. Men’s Vestry 7. Women’s Vestry 8. Boy’s Vestry 9. Recreation 10. Kitchenette 11. Refectory
1.1.1 Use. Community Room. The community room is very well used, the flexible space allows for maximum usage. Frequently hired out for lectures, and used weekly as a pre-school music group.
1.1.1 Use. Bridge. The bridge really aids the Hostry in terms of light and space, by allowing double height spaces. It also creates an interesting architectural element.
1.1.1 Use. Music Library and Song School.
The music room and song rooms were vital additions to the Cathedral. The space, like most in the building, is light, spacious and well planned out for its purpose.
1.1.1 Use. Library.
The library is not in the new hostry building however does connect to it, and it a well used resource within the cathedral.
1.1.2 Amount. The majority of work was completed on site, due to the sensitive nature of the build and the original elements involved within the building. The initial part of the build was focussed on site, with the building of the new west wall, which was built upon the original remains. Once the west wall was built the work relied upon off site fabrication of the main structural elements. The oak tree frame system, that supports the roof was designed and manufactured off site, however erected on site. Putting the structural elements together on site was a delicate sequence. Starting with the columns going into position, the roof is then erected on top of this, and the first floor construction can be suspended. Then the glass walls are put in place, making the building watertight.
1.1.3 Layout. The majority of the Cathedral property is public access. However the vast majority of the surrounding buildings are private residenceâ€™s.
Designated Precinct Private Public (part of the Cathedral) Public
The Cathedral and Hostry are situated in a heavily residential area and there is a strong sense of community there. The images highlight how central the Cathedral is within the local community.
Length of the building 45.4metres West Elevation of the Hostry.
Height of the building 10.8metres
Width of the building 11.5metres South Elevation of the Hostry.
1.1.5 Landscaping. The site map highlights how much green space there is on site and around the site. The outdoor grass areaâ€™s allow visitors to sit outside and enjoy the Hostry and Cathedral in all year round. The large expanse of green space also means there is nothing to distract from the cathedralâ€™s architecture, enhancing the buildings.
Trees Grassy areas Japanese garden
1.1.5 Landscaping. The Cathedral attempts to integrate the outdoors and indoors wherever possible. There are large green open spaces both within the site and around it. In 2009 a Japanese garden was designed and constructed in Norwich Cathedral Hostry. The concept for the garden was that it was to be very simple, just boulders and gravel, with a few stepping stones at one end. The garden links the 11th century Cathedral buildings with the 21st century Hostry Visitor & Education Centre and features three boulders as its focal point which can be interpreted as a Buddhist triad or perhaps the Christian Trinity, given the position of the garden. The remaining stones are arranged as if they are all pointing to, or leading to, or perhaps being drawn towards, the triad. The materials used in the Japanese garden consisted of: glacial boulders from North Scotland, Gravel (6mm silver- grey granite), Sawn grey sandstone (used as an edging material) and polished black pebbles. A traditional Japanese tripod and hoist was used to lift and position the boulders, which were wheeled in on a bespoke steel trolley designed for the purpose. Even in construction of the garden, the purpose and meaning was considered. The intention of the garden is to bridge the new and the old spaces and also to be an extension of the exhibition space. Almost an external piece of art.
1.1.6 Appearance. Hopkins Architects states that the building aims: â€˜to recreate the volume of the medieval Hostry that stood on this site, while making as little impact as possible on the fabric of the existing buildings and archaeological remains.â€™(RW, 2007) Using largely traditional materials and existing walls wherever possible costs were kept down and the buildings impact was minimal. Environmental considerations were made throughout the design and build. Using natural ventilation, insulation and under floor heating, all of which minimised long term costs for the cathedral complex and provided an energy efficient structure. The design and materials aim to embody the Benedictine Principles of: Worship, Hospitality and Learning.
1.1.6 Appearance. The new materials are all very distinctive and whilst standing apart from the older materials of the other cathedral buildings, compliment them. The roof is covered in local Anglican lead. Locally sourced materials were used wherever possibly. The roof was punctured with roof lights, which provided extra light in the internal spaces. External oak louvres on the west elevation screen the Hostry from sunlight in the summer months to reduce solar gain.
1.1.6 Appearance. The flooring was a combination of solid oak and limestone flagstones. The large panels of glass throughout the building mean its light and airy. It also helps to integrate the old and the new, with views of the existing buildings. Within the building there is a pebble evaporation layer, used as a ventilation method. This method was used and accepted as it is a traditional technique and relates to the history of the hostry and its place upon archeological remains.
1.1.6 Appearance. The new exterior walls were built upon the original flint walls in Ancaster Limestone. All new external wall elements were required to be made in traditional solid masonry. The the remainder of the walls being fulled glazed, with the highest thermal and solar performance glass. The rubble stone walling was specified as â€˜regularised randomâ€™. Ancaster Ragstone Limestone was chosen for the new walls with a wall-length Clipsham sill made of stone. A layer of lime putty was used to define the junction with the existing material and the wall was built by creating shuttering of stone one metre high at a time into which stainless steel reinforcing was lowered by crane and white cement poured, effectively creating a reinforced white concrete beam to take the weight of the roof.
1.1.6 Appearance. The Hostryâ€™s main materials were solid oak, local limestone from Lancashire and high performance glass. The materials were used delicately and in a sensitive manner throughout, ensuring the distinction between the old and the new. Fine steel-tipped finger-props holding the sand-cast lead roof, whose very rigid diaphragm is formed of glu-lam beams, steel purlins and plywood sheathing. The roof and first floor loads are carried down a grid of flitched oak columns into minimal pad foundations. A series of cruciform steel flitch plates at the sides of the columns were needed to support the first floor, the oak and steel working compositely to provide stiffness and support within the minimum possible diameter.
1.2.1 Access. Vehicular and transport links- Buses 1- Hostry 2- Visitor Entrance 3- Level Entrance 4- Bishopgate 5- Ferry Lane 6- Tombland - Bus Stops - Bus Routes
Bus Stops located 50 metres away from the Hostry. The main transport routes for buses are on Bishopgate, Ferry Lane and Tombland.
1.2.1 Access. Vehicular and transport links- Cycle Routes 1- Hostry 2- Visitor Entrance 3- Level Entrance 4- Ferry Lane - Bike Racks
The main cycle route is down Ferry Lane. There is room for 20 bicycles outside the Hostry, promoting cycling to the public.
1.2.1 Access. Vehicular and transport links- Main Roads 1- Hostry 2- Visitor Entrance 3- Level Entrance 4- Ferry Lane 5- Tombland - Heavy Congestion Areas
During peak times Ferry Lane and Tombland suffer from a lot of congestion. These roads are the two main transport routes via the cathedral.
1.2.1 Access. Vehicular and transport links- How building relates The Hostry is easily accessible via all transport routes. This is due to: - The Hostry being built parallel to the two main roads that access the cathedral, also keeping in fitting with the cathedral - The entrance being easily visible from the road side and the visitors entrance - Bikes racks are attainable via the main visitors entrance - Bus stops are clearly visible and in close proximity to the Hostry, allowing visitors to come and go with ease.
Bus Stop on Tombland
Hostry entrance visible from the Visitors Entrance
1.2.2 Inclusive Access. One of the main aims of the Hostry was to increase access, and improve disabled accessibility within the Cathedral. The design incorporates wide aisles, lifts, corridors and doorways allowing wheelchairs and pushchairs to easily manoeuvre as well as large amounts of people. Wheelchairs are available for hire from the Cathedral if they are necessary. Induction loops have been installed in the Weston Room in the Hostry, as well as in the Cathedral itself. Disabled toilets are available on site with baby changing facilities. Guide dogs are accepted everywhere within the Cathedral and can be provided with water.
1.2.2 Inclusive Access.
1.2.2 Inclusive Access. The map above shows available access through the Cathedral. The Hostry is highlighted in red. The Hostry has complete disabled access. The Cathedral can provide for any requirements that groups have, as long as they are told in advance. The hostry has a large elevator to accommodate for large amounts of people, pushchairs and wheelchairs. It is positioned centrally, with plenty of space to manoeuvre in and out of it. The floor surfaces are all smooth and on one level to make it easier for elderly people, young people, pushchairs and wheelchairs.
2.1 Safety in Design & Construction.
2.1.1 Health and Safety.
No. of fatalities
What is an accident? ‘A discrete occurrence in the course of work which leads to physical or mental harm’, is the definition by Eurostat, European Statistical Office. An accident at work is an event that results in injury or death which happens in the workplace, due to lack of safety and preventitive measures.
Trends in worker fatalities 120 100 80 60 40 20 0 ‘90
Agriculture, hunting, forestry and fishing
Construction worker fatalities
2.1.1 Health and Safety.
Handling rough materials Slips, trips and falls
Major causes of accident, injury and death in the Construction Industry in the United Kingdom
Injuries from hand tools
Falling from heights
Bad working positions, e.g. Confined spaces Moving heavy loads
Crushed during excavation work
Exposure to dangerous substances Struck by falling objects
Exposure to radiation Being struck or crushed by a workplace vehicle
Working in, near, or over water
2.1.1 Health and Safety. Vibrations Anti-vibration handles / gloves. Treating vibration source.
Confined Spaces Posture support and oxygen supply
Inhaling substances Dust masks / respirators and heavy duty body suits for more dangerous jobs.
Excavation Battering to stop collapse, guard rails, trench sheets, baulks, props.
Noise Ear defenders and appropriate signage.
Falling Objects Scaffold kick boards, safety netting, disposal tubes.
Moving Heavy Loads Mechanical movement, distribute loads, correct handling equipment.
Falls from Height Mobile elevated work platform, scaffolding, appropriate ladders. Hand Tools Tool maintenance, appropriate use and training, protective equipment.
Rough Materials Gloves or alternative mode of haulage.
Chemicals Training, protective clothing, minimal use, appropriate signage.
Workplace Vehicles Appropriate vehicle routes, sounding vehicles, safe speeds.
Slips, Trips and Falls Appropriate design / drainage, tidy workplace and signage.
Radiation Notification and inspection by higher bodies.
Working with Water Avoid using or working near electricity in water.
2.1.2 Minimising Risk in Design. Identify: The Norwich Cathedral Hostry has a series of actuated opening Vitral roof lights. Should a window regulator break, need replacing or whether a routine check or clean is in order, workers will need to access and walk on the roof of the building. Risk of falling has been reduced by the design of the building by incorporating a roof-safe system and a near horizontal platform for walking along.
The roof safe mechanism is designed to allow workers to be fastened onto the roof of the building without the risk of falling, thus minimising the risk of accident or injury to workers.
2.1.2 Minimising Risk in Design. The North-East facing roof has a near horizontal working platform at 650mm wide to access a series of rooflights mechanical roof lights. Without any fall protection at either end of the building, the roof-safe string harness system prevents trips or falls down the 6.8m drop. The platform for the adjacent building is accessible by the same platform.
The South West facing roof has no roof lights, and therefore no platform. The integration of the platform to the roof structure suggests that the work platform is a design revision. The roofsafe harness system provides discreet means of worker protection, so is likely to be an architects design revision rather than a prescribed identification of the CDM coordinator as an aesthetic approach has been undertaken.
2.1.3 Minimising Risk in Construction. Identify: The construction of the Norwich Cathedral Hostry was in two stages. Locally sourced oak and a steel cruciform were used as composite columns in a tree support system. A steel beam and timber joist roof system clad in lead meant that a substantial weight was added to the relatively lightweight structural system. In turn causing problems in the construction phase for the contractors.
Risk of structural collapse due to the sudden stress applied to the composite system meant that a logical approach to construction methodology was required.
2.1.3 Minimising Risk in Construction. Construction Phase 1.
A bird-cage scaffold system was erected prior to constructing the roof and internal structural system.
External stonework was built upon the shallow pad footings.
I-Beam and timber roof was constructed then craned over the scaffold system to carry the weight of the leaded roof.
The internal tree structures were then erected underneath the completed roof.
Structural and roof elements fastened together.
Controlled removal of the scaffolding allowed the primary structure to gradually take the weight of the vast roof structure.
2.1.3 Minimising Risk in Construction.
3.1 Planning Guidelines
3.1.1 UDP/ LDF The Local Plan for Norwich Local Development Scheme The programme and timetable for preparing the documents making up the local plan
Statement of Community Involvement Statement setting out how they will involve local people in planning and plan making
Monitoring Regular reports setting out how the local plan is performing against its objectives and targets
Joint core strategy for Broadland, Norwich and South Norfolk
The JCS sets out the councils vision, objectives and strategic policies. Its spacial planning objectives are derived from the sustainable community strategies.
Development Management Policies Plan General policies applying to all new development in Norwich
Site allocations plan
Area action plans
Individual policies and proposals for specific sites where change is likely to happen due to public conslutations and sustainability appraisals.
Detailed policies and programme to manage change in areas of large scale regeneration
Map showing the areas of Norwich where particular policies and proposals apply
Supplementary planning documents Further advice and guidance to show how local policies will be implemented
3.1.2 Local Planning Policy Joint Core Strategies (JCS), Management Development Policies Plan, Site Allocations Plan, Area Action Plans are combined to create Norwichâ€™s UDP. The main objectives of these are: - to minimise the contributors to climate change and address its impact - to promote economic growth, diversity, regeneration and reduce deprivation - to allow people to develop to their full potential by providing educational facilities - to make sure people have ready access to services - to enhance transport provision to meet the needs of existing and future populations while reducing travel need and impact - to be a place where people feel safe in their communities and that encourage the development of healthy and active lifestyles - to positively enhance the individual character and culture of the area - to protect, manage and enhance the natural, built and historic environment, including key landscapes, natural resources and areas of natural habitat or nature conservation value Norwichâ€™s UDP also includes a sustainability appraisal. This ensures that development is sustainable, responsible, well-designed and consistent with the councils strategies. This supports and enhances the heritage and environmental character of Norwich and provides for an appropriate mix of development which is well- related to existing services and meets the economic needs of the city.
3.1.2 Local Planning Policy These policies informed the architects on location for the hostry, building it on the archeological remains, which in turn informed the shape of the structure, and keeping it in fitting with the original building. The policies on impact to climate change and the environment impacted choices of material used and structure. Many locally sourced materials were chosen to reduce carbon emissions in transportation. The materials have a long life span, such as the Oak beams that feature heavily in the design, and are also 100% recyclable. The building structure stands independently of the existing structure as to not interfere with it, effectively enhancing the historic environment without jeopardising its structural integrity.
3.2 Building Response to Planning Guidlines 3.2.2 Building Response to UDP/ LDF The architects responded to these policies through three strategies.
Social Architects considered green roofs to aid biodiversity They integrated the landscape into the building form, reacting to the governments sustainable development strategy â€˜A Better Quality of Lifeâ€™. By recognising the value of the natural environment the greenery is aimed at reversing the decline in wildlife and habitats the biodiversity.
Environmental The building reuses elements such as the contemporary revival of the original archaeological form, the wall integrates the remnants of the original wall. Other than this the principles for the structural design have sought to minimise the impact of the new construction on the existing cloister building. A rigid structure was imposed via steel and oak cast H framed structures and masonry walls. These are sympathetic to the Cathedral context, remaining separate from the archaeological history, keeping to the conservation nature of the policies
Archaeological Hostry Footprint
3.2.2 Building Response to UDP/ LDF Environmental The building uses the land use cycle, considering orientation/ micro climates and shelter. The Hostry has Brise Soleil installed on the western facade. Brise Soleil is a sustainable shading option. It works by stopping the rays of the summer sun from reaching the glazing and overheating the inside of the building. These are the horizontal elements protruding from the building The design uses indigenous, recycled and recyclable materials, such as the oak beams, which are locally sourced to reduce carbon emissions in transportation
December 22nd (Winter Solstice) 12.00pm
Encourages walking, cycling and publi transport by providing bike racks outside the Hostry and bus stops a mere 50 metres away Goes further into the sustainable side by minimising the use and maximum recovery of water. The building also uses geothermal energy for cooling.
March 20th (Equinox) 12.00pm
Economic This building has low running costs due to renewable energy sources and natural elements The design maximises daylight availability. Brighter buildings create a better working and visiting environment, encouraging people to use them The design also maximises passive solar gain and uses the thermal mass of surrounding buildings to moderate the internal environment
June 21st (Summer Solstice) 12.00pm
Building Size = 1078 m2
Building Cost = £10 million
Cost per m2 = £9277
10 year funding campaign - “Cathedral Inspiration for the Future”
Heritage Lottery Fund Grant
Building is publicly funded relying on public grant and donations
4.1.2 Costing for Construction. Main materials contributing to cost.
Pad foundations up to 1200 mm deep
£63-£130 per m2
Ground floor 523.25 m2
£96.50 x 523.25 = £50493.63
Total Cost = £50500
Concrete Slab 150 mm
Ground Floor 523.25 m2
£66.50 x 523.25 = £34796.13
Total Cost = £34800
Images above show the concrete pad foundations and concrete slab.
4.1.2 Costing for Construction. Main materials contributing to cost.
Another main cost contributor in the Hostry is the Oak Components. The items were manufactured in 1/4 Sawn European Oak and also a substantial amount of English Oak. In 2004 Coulson group won Gold at the Prestigious Wood Awards for the construction of the Refectory.
Coulson Building Group
Systems - Structural Columns/Finger Props Louvered Panels Internal/External Doors and Frames Acoustic Ceiling panels Stair Treads and Walkways Costs - ÂŁ700,000
Images above demonstrate the Oak columns, finger props and louvre panels in the Hostry.
4.1.2 Costing for Construction. Main materials contributing to cost.
Another main cost contributor in the Hostry is the Stonework. The stone work consists of Ancaster Rag and Clipsham. The wall has an Ancaster rag-stone face to both sides with a continuous Clipsham limestone cill running the length of the glazing above. The stone selection and quality control were key to the project.
Supplier - Hanbeck Natural Stone Clipsham Quarry Company Systems - External Limestone Wall Limestone Flagstones (x3400) Limestone Cill Costs - ÂŁ162.98 per m2 ÂŁ180,000
Images above demonstrate the Stonework, Showing the external limestone wall and cill aspects of the Hostry.
4.1.2 Costing for Construction. Main materials contributing to cost.
A main cost contributor in the design of the Hostry is the Glazing ranging from a curtain wall, a roof light with opening vents to a frameless automatic door systems installed into the Gothic arch in the Locutary.
Anglian Architectural Glazing Systems
Systems - Schuco Curtain Wall Schuco RS65 Doors Vitral GTS Aluminium Rooflight Bolted glass Frameless auto doors 500kg acoustic glass unit Costs - ÂŁ650,000
Images above demonstrate the glazing systems used including the Vitral roof light and acoustic glass unit in the Hostry.
4.1.2 Costing for Construction. Main materials contributing to cost.
Another main cost contributor in the Hostry is the Lead. Lead has been used in the construction of the roof, as it is the most durable building materials and has been known to last for more than 500 years. Lead is also environmentally friendly and is 100% recyclable.
Possible Supplier -
Anglia Lead & Roofing Ltd Lead Roofing
Costs - ÂŁ150 per m2 ÂŁ165,000
Images above demonstrate the lead roof in the Hostry.
4.1.2 Costing for Construction. Building Costs according to Spons 2010.
Below is a table showing various components in the building. Using the Spons 2012 estimating costs guide, the cost per component is shown in the table below. Component Quantity/Size m2 £ per m2 Pad foundations (x18) £63 - £130 Foam board insulation 40mm £7.47 Concrete Slab 150mm £59 - £74 Concrete Screed 75mm £17.70 - £24 Limestone Flagstone 397x397x40mm (x3400) £160 Steel columns (x18) £1400 - £1600 per tonne Steel I beam 305x101mm (x58) £1200 - £1400 per tonne Timber joists 300m (x58) £15 Mineral Fibre Insulation 25mm £1.68 Solid Oak Floor finish 129x3700x22mm (x1097) £220 Oak fingers x72 £180 Limestone 156.5m3 £160 Glazing 6mm (x20) £220 Lead roofing 1000m £150 Oak louvres 200x50mm (x20) £180
4.1.2 Costing for Construction. Building Cost per Functional Unit. The Functional Unit cost of a building expresses the cost of a unit based on its intended function. For example. The number of cars in a car park To calculate the building cost per functional unit :
Cost per Functional Unit = Total cost/number of student rooms
Unit Cost Model = Cost of student room x number of rooms
Using Spons 2012, it is possible to find the building cost per functional unit by using the maximum capacity of each room in the building and the price range used for the room based on its intended function.
The functional unit cost however does not include VAT of 20% so this must be added on afterwards.
The preliminary costs in the 2012 edition are +11% which is included in the functional unit cost.
The location of the building must be added, by using spons a percentage is added to the cost of the build based on its location. For East Anglia the amount is -11%.
4.1.2 Costing for Construction. Building cost per Functional Unit. Advantages: Quick and simple method Directly related to function therefore easy to understand Does not dictate standard or size Easy to adjust for changes in quantity Flexible Disadvantages: Data says nothing of Form or Quality Use of historical cost data Data sources Price levels Location Site specifics â€“ external works.
4.1.2 Costing for Construction. Building Cost per Functional Unit.
Function Size m2
£ range per m2
£Total= Capacity x £Mid
Courtyard 60 20 £21000 - £32000 £530,000 Hostry Entrance 180 70 £18000 - £30000 £1,680,000 Locutory 80.5 20 £21000 - £32000 £530,000 Exhibition Space 180 80 £18000 - £30000 £1,920,000 Education 120 60 £9000 - £20000 £870,000 Music Library 60 20 £3000 - £7000 £100,000 Song Room 70 30 £3000 - £7000 £150,000 Community Space 190 200 £7700 - £12100 £1,980,000 Hall 130 80 £18000 - £30000 £1,920,000 Total Cost = £9,680,000 VAT +20% £11,616,000 Professional Fees +11% £12,680,800 Location - 11% £11,616,000 Functional Unit Cost = £11,616,000
4.1.2 Costing for Construction. Maintenance Costs.
The building is naturally ventilated through the use of opening windows and roof lights, ensuring lower maintenance costs.
The building also uses oak louvres to increase the amount of shading into the building. The louvres also control the amount of naturl lighting in the building. This means that less mechanically lighting and ventilation is needed, reducing the maintenance costs. There is no entry charge into the Cathedral.
Visitors are asked to make a voluntary donation to help cover the costs of running the Cathedral each year
5.1 Critical Response.
5.1.1 Design and Access.
- The project approached the brief well, creating an architectural access point which is a merit to the Cathedral. The brief was to create a meeting place for people of all ages to come to, which i think it achieves well by promoting the cathedral and having multipurpose spaces. - The Spaces within the design are good flexible spaces allowing multipurpose rooms and the opportunity to hire out as functions to gain a profit for the cathedral. However there seems to be alot of unused space within the design, for example the Hostry entrance is approximately 180m2 which services no purpose other than the entrance to the build. It would have been more beneficial to integrate this into exhibition space, creating a more functional space throughout. - On site construction was accurate and careful taking into account the aechological remains. The off site construction of prefabricated parts of construction allows a quick and simple process on site. By using local materiality, this promotes local businesses and provides a good economy in the local area. - The design of the Hostry was to create a place which connects the old and the new. This was a vital part of the design and construction, connecting and reflecting the cathedral within the building. The Hostry creates an image which promotes the cathedral using oak and glazing as key materials. Aswell as connecting old and new in the Hostry, the building also provides better disabled access to the cathedral. - The design and access aspect is an ongoing procedure in the design module. In my design i will take into consideration the best access routes to my site, and the main functions for the site.
5.1.3 Health and Safety.
- The construction industry is higher than other industries such as agriculture and manufacturing. - Health and Safety is an important part of the design, ensuring that users are safe inside the building. Health and Safety also ensures the building will be able to perform for its intended life cycle. - In the design of the Hostry there is a roof cable line which allows easy maintenance of the top of the building. By wearing the harness, this allows safe access on the roof and therefore can be used when cleaning the roof light or any other tasks which may need carrying out on the roof of the building. - There is also as part of the design a working platform alongside the roof of the building, where it is possible to access from the building, this provides safe maintenance to take place at a great height. - The construction anaylsis of the building was that the roof was first on site, suspended from scaffolding over the walls, prioritising the safety of workers during the construction stages. This meant that the oak coulumns and finger joints where then brought in afterwards and assembled to the roof, creating a strong structure and a safe environment. - Using the health and safety analysis I have learnt that it is a good approach to think about health and safety of workers and users in the early stages of the design process. By using health and safety measures in the design stages, this creates a better and safer working environment. I will try to use the idea of creating platforms at various heights to comply with health and safety measures when working at great heights in the design of a high rise building next semester.
- In the construction stages, the contractors and designers created planning policies for the building. - The Sustainability act was at the forefront of the policies. It was important to ensure that the footprint of the Hostry complies with the existing historical remains on the site. The building must also take into account its surroundings, ensuring that it relects the surrounding building, in appearance and height. The building is situated near the cloisters and refectory, and the design does not impose on these buildings. - As part of the sustainability act local sourced materials were chosen for the manufacturing of the materials. This was to reduce transportation costs of the materials, as well as promoting economic growth of local businesses and companies. - Another policy used was to protect, manage and enhance the natural and historic surroundings. This means that there should be open space for courtyards and gardens to promote natural habitats in the area. - Planning policies from professional studies can be incorporated into my design work by focusing on sustainability, creating naturally ventilated spaces, promoting natural lighting, using locally sources materials and also taking into consideration the surrounding environmental requirements. - In my design work I will create a planning policy at the beginning of the project, and then assess how my design complies with the policies at the end of the project.
- The project is funded 100% by grants and donations from local campaigns. - The cost per m2 of the building = £9277. In comparison to this an average education centre would cost £12500 per m2. This means that the project was budgeted well. - As the project is funded by grants this meant that there was a strict budget. This means that there was little room for error in the costing aspect of the project, as this would mean other parts of the building would then be compramised. - The Functional Unit is a good mesaure to calcualate the cost per room which has a function described in Spons. However this method does not taken into account quality of the build or any external works which need to be made. Spons is a costing guide which has limited functions. For example the functions were offices, hospital, education, theatre which are very vague and difficult to apply to the Hostry. Therefore this meant that the method did not give an accurate estimate as the majority of rooms where assumed as office space. - The Functional unit cost of the building is £11, 616,000 which would mean that if accurate this is over budget by £1.6 million - The total cost of the main materials in the building is £1,780,300 which is approximately 10% of the building cost. This means that the remaining budget is used in other areas such as professional fees, services, ground works, internal spaces. - To incorporate finance into my design work I can begin to use spons to calculate the costs for manufacturing of components within my building. Studying finance has enabled me to get an understanding of how important finance is within a project and how vital it is to stick to a budget.
Bibliography RW. (2007) Hopkinsâ€™ Hostry gets go-ahead at Norwich Cathedral. Architectâ€™s Journal [Online] Available from: <http://www. architectsjournal.co.uk/news> [Accessed 7 November 2012] Hopkins Architects [n.d]. Norwich Cathedral Hostry. [Online] Available from: <http://www.hopkins.co.uk/projects/1/139/> [Accessed 10 November 2012] Norwich Cathedral (n.d.) [Online]. Norwich: Norwich Cathedral. Available from: <http://www.cathedral.org.uk/> [Accessed 10 November 2012. http://www.naturalstonespecialist.com/documents/Awards10_NBMod_000.pdf http://www.angarch.com/architectural-glazing-projects/norwich-cathedral-hostry http://www.coulson.co.uk/case_studies/coulson_case_study_norwich_cathedral_hostry.pdf Langdon, D. 2012. Spons Architects and builders price book 2012.