Hounslow House

H O U N S L O W H O U S E

H O U N S L O W H O U S E

PROJECT

PROJECT

DATA

TEAM

S TA R T O N S I T E

ARCHITECT

L ANDSCAPE ARCHITECTS

14.11.2016

S H E P PA R D R O B S O N

A L L E N P Y K E A S S O C I AT E S

COMPLETION

INTERIOR ARCHITECT

F I R E C O N S U L TA N T

28.01.2019

ID:SR

WA T E R M A N

GROSS INTERNAL FLOOR AREA

STRUCTURAL ENGINEER

T R A N S P O R T C O N S U LTA N T

15,974SQM GIA

CL ANCY

SYSTRA

M & E & E N V I R O N M E N TA L C O N S U L TA N T

P L A N N I N G C O N S U L TA N T

MAX FORDHAM

DELOIT TE

Q U A N T I T Y S U R V E YO R

H I S T O R I C C O N S U L TA N T

GARDINER & THEOBOLD

H E R I TA G E C O L L E C T I V E

PROJECT MANAGER

R O L , D AY L I G H T & S U N L I G H T

S TA C E

C O N S U L TA N T

( M A I N B U I L D I N G O N LY ) 16,050SQM GIA (MAIN BUILDING AND SERVICE 4

YA R D B U I L D I N G ) CONSTRUCTION COST £64,000,000 T O TA L P R O J E C T C O S T

POINT 2 C D M C O O R D I N ATO R GARDINER & THEOBALD

B R E E A M C O N S U L TA N T BOUYGUES UK

A P P R OV E D B U I L D I N G I N S P E CTO R M E R I D I A N C O N S U LT LT D

ECOLOGIST ENCON

M A I N C O N T R ACTO R BOUYGUES UK

C L A D D I N G S U B C O N T R ACTO R AY G Ü N A L U M I N I U M

DEVELOPER L I N KC I T Y

M & E S U B C O N T R ACTO R TCLARKE

A C O U S T I C C O N S U L TA N T COLE JARMAN

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S H E P PA R D R O B S O N PROJECT TEAM

D AV I D A R D I L L S U S A N N A B A R R O S - C O S TA IWONA BEDNARSKA HELEN BERRESFORD ROK DROLC M A R C E L L A F A L S E T TA A N D I FAT KO J A ELENA GONZALEZ SARAH LAURISCH MARGARET LEONG ROBERT MYERS S A K I KO M A R U I - T U R R E L L CARA OLIVER C H R I S T I N A PA P PA ELENA PROUSALIDOU B R U N O S A N TO S ALAN SHINGLER A L E K S A N D R A S ZCZ YG L A K G A R Y VA N H E E R D E N KASAM VISANJI

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PARTNER,

SHEPPARD

ROBSON

“The brief for this new, important civic building called for a building that reflected the progressive culture of Hounslow as well as demonstrating the council’s commitment to sustainability.”

— ALAN SHINGLER,

In April, we left the Civic Centre and moved to our new, purpose-built office, Hounslow House, which was officially opened by the Mayor of London, Sadiq Khan, on 30 April.

Our new HQ is just one part of a much larger project that has been delivered through a collaboration between the council, our partners Bouygues and their development arm Linkcity, and Notting Hill Genesis, one of London’s leading housing associations With a growing need for more housing in the borough, coupled with the fact that the Civic Centre was no longer fit for purpose and had high running costs, it made sense to look at releasing the land for redevelopment, which would also allow for the build of a smaller, bespoke council office in the heart Hounslow with a greater community focus and opportunities for co-location with partners, as well as supporting the regeneration of the town centre.

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In July 2015, the Development Agreement was signed to build both the new council office and the new housing, following the establishment of a Housing Zone and GLA funding, and the building works began in December 2016.

Less than three years later, we have already benefited from 160 new homes for residents at the former Civic Centre site, and Hounslow House is open for business. Smaller, modern, and more energy-efficient, Hounslow House is a landmark building that will revitalise and give a real boost to the town centre, but it also has a strong community focus which allows us to work more effectively for the borough’s residents.

Cllr Steve Curran Leader of Hounslow Council

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LAMPTON PARK

HOUNSLOW CENTRAL

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INTRODUCTION The brief for this new, important civic building called for a building that reflected the progressive culture of Hounslow, with the design having a strong presence within the community as well as demonstrating the council’s commitment to sustainability. In addition to being bold, the building also had to be welcoming. The council HQ – relocated from Lampton Park into the heart of Hounslow – has been shaped around the principles of transparency and integration, with the design weaving together: desirable workplaces for the council’s staff; the public-facing library and community facilities; as well as the civic chamber.

Sheppard Robson, working with Linkcity, won the project in competition in 2015 that would reposition the Council HQ to a site next to the borough’s main high street. This was an opportunity to not only make a significant addition to the townscape but also to create a beacon that announced the arrival of improved, environmentally efficient public amenities, with the centre’s civic function clear both to people using the building and passers-by.

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STRIVING FOR EFFICIENCY After an appraisal of the former civic centre on Lampton Road, it was clear that the facility was in need of modernisation. The 1960s building had high running costs and was, in parts, underutilised, whilst its landscaped setting made it a good site to provide much-needed homes in the borough. So the decision was made to create a new state-of-art facility in the town centre; the borough initially developed a model building and established the brief, which Sheppard Robson then interrogated and analysed.

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Left: The exterior and interior spaces of the outdated and inefficient former Civic Centre on Lampton Road

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Left: Early sketches of the building’s envelope, illustrating the strategy of the passive shading of the façade.

Bottom: Photographs of the public consultation process.

Right: A diagram illustrating the community “tapestry� interior design concept.

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Right: The atrium with onlookers watching the opening of the building.

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Above: Sketch of the vibrant central staircase wrapping the internal structure.

Opposite: Reception area and public realm opens up under the full height atrium.

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Early cutaway sketches illustrating the different spaces within the building and ribbon-like stair (right).

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Left: Visualisation of the building from the east.

Below: Visualisation of the ground floor cafĂŠ space.

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FACADE DESIGN

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Zone 2

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O P T I M I S E DAY L I G H T / I N S U L AT I O N

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Increased glazing to maximise daylight

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Optimised using parametric software for energy balance

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Simplicity to design is recognisable

M A X I M I S E DAY L I G H T AND VIEWS •

Optimal voids for daylight within the public space

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Single core strategy to allow natural light to the floor plate

COMBINED APPROACH •

Structure is ‘pinched’ around voids on the main façade

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Gives a focal point to the design

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A civic sustainable design

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A series of model and mock-ups that contributed to the design development and delivery of the anodised aluminium faรงade.

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Left: A component of the aluminium faรงade preinstallation.

Above: Component incorporated within the completed faรงade.

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GENERIC PATTERN DEVELOPMENT

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INVERTED PATTERN DEVELOPEMENT AERIAL VIEW | ROOF LIGHT

ENVELOPE PATTERN

PATTERN

INVERTED

DEFORMED

ROOF LIGHT PATTERN

THE CLADDING PATTERN HAS BEEN APPLIED TO THE ROOF LIGHT

SOLID 80M2

SOLID 27M2

VOID 27M2

VOID: 80M2

Above: Rooflight design options.

Opposite: Sketch of the final rooflight design.

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Above: The rooflight structure in construction and when completed.

Opposite: Mayor of London Sadiq Khan looking up at the rooflight at the building’s opening.

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Lift Lobby Drying Room

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Staff Shower/Changing Rooms Store

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Plant Car Park

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Police Locker Room Lift

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Ground Floor

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Main Entrance Lobby Car Park Ramp Cyclist/Service Entrance Lift Lobby Public Atrium Stair Business Visitors Info Desk

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Customer Helpdesk Customer Services Meeting Rooms Office Post & Print Archive

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Public WC Kitchen Cafe Store Plant Security

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Staff Security Gates Lift Public Lift

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Public Library Lift Lobby Public Atrium Stair Atrium

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Registrars Registrars Office Children's Library Adult Education Rooms

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Office Plant Store Public WC

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Changing Places WC Lift Public Lift

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Lift Lobby Atrium Staff Atrium Stair Office

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Meeting Rooms Multi-Faith Room Print Room Tea Point

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Staff WC Store Room Plant

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Lift Public Lift

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Lift Lobby Civil Function Rooms Catering Prep Room Terrace

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Staff Lounge Office

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Business Meeting Rooms Meeting Room Members' Office Leader's Office Deputy Leader's Office Mayor's Office

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Minority Group Majority Room Store Plant Public/Staff WC Teapoint

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Lift Public Lift Civic Function Milling Area

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Atrium Civic Function Rooms Terrace

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Office Library Cafe

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Customer Services Plant Rooflight

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Car Park

ASSOCIATE

PARTNER,

SHEPPARD

ROBSON

“The façade defines the identity of the council HQ whilst being a vital element of the building’s sustainable approach."

— CARA OLIVER,

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EXTERIOR The external elevations help create this presence within the community. The facades are informed by a singular design approach, creating a consistent architectural language to all elevations. This vocabulary is derived from glazed bays separated by extruding geometric forms made from anodised aluminium, with the surface’s iridescent quality changing throughout the day, and expressing the three-dimensionality of the building’s form.

The shading changes in depth depending on the orientation of the facade. The facade maximises natural light by incorporating high levels of glazing, with the solid elements digitally modelled to minimise solar gain, cooling loads, and consequently the energy consumption of the building.

The passive design principles of the facades, as well as helping create a visual marker and boosting efficiency, also create the transparency and permeability associated with a civic building.

The large openings at street level allow you to see the community facilities, reception and cafĂŠ, with the library and adult learning on the first floor.

Opposite: The main entrance to Hounslow House.

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Opposite: The completed building from the east.

Above: The completed building when viewed from the high street.

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The changing colours and reflective qualities of the faรงade during different times of the day.

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Anodised Aluminium Rainscreen Cladding Thermal Insulation Glazed Windows and Curtain Wall System Concrete Structural Frame Composite View of Facade

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WO R K I N G D E TA I L S The façade defines the identity of the council HQ whilst being a vital element of the building’s sustainable approach. Sheppard Robson worked with Max Fordham to optimise the envelope, minimising solar gain and maximising daylight. The façade design was modelled to track the solar path around the building, resulting in a faceted rainscreen that varies in depth to maximise shading.

The solid to void ratio and the proportion of openings was influenced by Bouygue’s preferred structural solution with punched openings within a perimeter concrete wall. This enabled the building to become water tight sooner, speeding up the construction and improving the structural efficiency of the frame.

The structural frame is insulated and clad with folded anodised aluminium rainscreen panels bespoke to the geometry. The recyclable, durable and low maintenance properties of anodised aluminium make it consistent with both our drive for sustainability and efficiency. Working with the façade contractor we were able to further minimise material waste and embodied carbon by reducing the panel thickness to 3mm, with rigidity achieved by the folds within the panels.

The repetitive panel geometry utilised large sheets of aluminium of up to 3700mm x 1900mm. The junctions between adjacent panels were expressed as open joints and the diagonals within a panel were expressed as folds. The secondary sub-frame was formed in two parts; one attached to the panels, the other fixed back to the primary structural concrete frame. The folded rainscreen panels were manufactured and transported with their subframe, to add rigidity during transportation and assist installation. The panels to the window reveals are removable to simplify the façade maintenance strategy. The anodised aluminium reflects the changing daylight conditions and amplifies the faceted geometry of the building.

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Internal Floor Finishes Level Structural Concrete Frame Thermal Insulation Vapour Barrier Secondary Support Frame PPC Coated Aluminium Window Anodised Aluminium Rainscreen Cladding Secondary Support Fixings to Concrete Structure Anodised Aluminium Removable Soffit Rainscreen Panels Open Joints Between Aluminium Panels

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Glazed Balustrade to Terraces

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Roof Terrace Finish Level Anodised Aluminium Rainscreen Cladding Concrete Structure PPC Coated Curtain Wall System to Atrium Areas Internal Floor Finish Level PPC Coated Aluminium Windows

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Above: Two council employees looking out of the large windows on the top floor.

Opposite: The public enjoying the ground floor cafĂŠ space.

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ASSOCIATE,

SHEPPARD

ROBSON

“The Hounslow neighbourhood is a tapestry of culture, history, vibrancy, commerce and community spirit; our brief was to create uplifting interior spaces that – far from being institutional – brought all of these qualities together.

— CHRISTINA PAPPA,

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INTERIORS The Hounslow neighbourhood is a tapestry of culture, history, vibrancy, commerce and community spirit; our brief was to create uplifting interior spaces that—far from being institutional— brought all of these qualities together.

A clear primary navigation was key to stitching together the building’s public-facing services with the office and ceremonial spaces. The staircase— bold and sculptural—was designed as a ribbon that flows up the centre of the building, with the underside lined in a prominent magenta colour to emphasise the route through the building.

The faceted form of the stairs—a nod to the building’s façade—is an example of the interior and architecture teams working in tandem to create a consistent language inside and out. Further drama and vertical expression is created through a linear light installation that hangs in the atrium’s void.

The brief was to create a variety of work places that support the council’s move to agile working. The predominant ‘work smart’ desks were maximised at the perimeter to benefit from natural light. Collaboration work spaces and amenity spaces are positioned around the atrium, providing an acoustic buffer and assisting to create an open environment that weaves together the bustle of the public spaces and the quietness required for the library and office floors.

Opposite: Looking up at the staircase from the base of the atrium

Whilst many of the spaces remains neutral in colour, so as to not be affiliated with a particular political party, there are accents of colour such as the magenta on the staircase and the meeting rooms found throughout the workplaces. Complemented by the wayfinding design, this use of colour helps create identifiable neighbourhoods within the building.

The result are spaces which, with high levels of physical connection and visual permeability, fuse together numerous activities—from special ceremonial occasions to an informal coffee with friends—which help shape the future of this progressive London borough.

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The main staircase that runs up the atrium as well as the perimeters of the floors.

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Left: Public-facing amenities include functional library spaces for both children and adults.

Below: Council offices occupy the upper floors of the building.

Opposite: The 6th floor rooflight illuminates the space outside the civic chamber.

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enquiries@sheppardrobson.com www.sheppardrobson.com @SheppardRobson

77 Parkway London NW1 7PU +44 (0)20 7504 1700 +44 (0)20 7504 1701 City Tower Piccadilly Plaza Manchester M1 4BT +44 (0)161 233 8900 +44 (0)161 233 8901 93 West George Street Glasgow G2 1PB +44 (0)141 285 3100 +44 (0)141 285 3101

enquiries@sheppardrobson.com www.sheppardrobson.com @SheppardRobson

77 Parkway London NW1 7PU +44 (0)20 7504 1700 +44 (0)20 7504 1701 City Tower Piccadilly Plaza Manchester M1 4BT +44 (0)161 233 8900 +44 (0)161 233 8901 93 West George Street Glasgow G2 1PB +44 (0)141 285 3100 +44 (0)141 285 3101

Sheppard Robson is the trading/brand name of Sheppard Robson Architects LLP, Sheppard Robson Ltd and Sheppard Robson International Ltd. Printed by Sheppard Robson.