hub-victoria:-high-tech-revisited-–-adc

HUB Victoria: high-tech revisited – ADC

HUB Victoria: high-tech revisited

Retrofit specialists Morrow + Lorraine add a building-on-top-of-a-building to two high-tech office blocks completed in 1991 by Arup Associates led by Peter Foggo.

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Photos

Timothy Soar

Retrofit specialist Morrow + Lorraine has completed a major extension for Gaw Capital, building over and connecting two existing buildings at 123 and 151 Buckingham Palace Road, directly above Victoria Station rail platforms. The original buildings, completed in 1991 by Arup Associates under Peter Foggo, were linked by a glazed canopy and stone colonnade. Morrow + Lorraine’s proposal retains 100% of the existing 527,000 sq ft buildings while adding over 100,000 sq ft of office space. The new, innovative structure oversails and links the existing buildings complementing Foggo’s high-tech aesthetic. New Grade A offices connect to a much improved public realm and upgraded retail accommodation at street level.

“We hope that the new extension quietly complements the old building rather than announce itself as something separate or novel” says Morrow + Lorraine director J-J Lorraine. “We tried to create a feeling that even though the size of the addition is vast, it is somewhat background in nature. By leaving room in its setting for neighbours it doesn’t overwhelm the context or shout too loudly for attention. Surgical precision was required to stitch this building into its urban context both at street and rooftop level. Bringing benefits of improved proportions, enhanced vistas and upgraded utility, our holistic vision to the site was achieved whilst barely touching what was there.” The project is the practice’s most complex project to date.

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The new Grade A office building, known as ‘Sky HUB’ has its own dedicated entrance and circulation core. It offers flexibility (it is divisible for up to twelve tenants) and stunning panoramic views across London. Tenants will enjoy views over, and the use of, two large outdoor terraces at level six – one facing north and one facing south. Landscape design by BBUK adds year round colour and movement featuring native and meadow plants that promote wildlife. Continuing the planting scheme at ground level all the way up to the roof, including bird boxes, has significantly improved the ecological value of the site.

Accessibility, legibility, and daylight levels within the public walkway along Buckingham Palace Road have been transformed by the removal of the glazed canopy and new hard and soft landscaping. The project retains the existing stone screen which provides an effective barrier to the busy traffic along Buckingham Palace Road, but newly enlarged retail units, previously hidden behind the stone colonnade, are now exposed, introducing activity and vibrancy at street level.

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Two large landscaped terraces with lawns and native planting provide fabulous outdoor amenity space and panoramic views across the city. Photograph by Sam Stephens.

McLaren led the construction works over a 42 month period, with the commercial floors at 123 Buckingham Palace Road remaining occupied throughout, creating technical complexity unusual for a project of this size. A comprehensive Construction Management Plan was developed and agreed on by all parties prior to starting work.

Sustainable design principles were employed, with the all-electric Sky HUB achieving BREEAM Excellent and expected emissions 61% below the London Plan’s baseline. A new brown roof has been designed to reduce urban heating, and photovoltaic panels introduced to produce over 27,000kWh/yr, reducing the building’s overall reliance on the grid. Prefabrication, waste reduction, water and energy saving technologies have been implemented throughout the project.

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Photovoltaic panels on the new roof will produce 27,032kWh/yr solar energy. Photograph by Surface2Air.

New facades are a unitised system constructed off site, in a stringent factory setting meaning better quality control and less wastage. The unitised system allows for greater building movement than a stick system, making it ideal for a building that connects two existing buildings. The building deflection has been carefully designed into each unitised panel so all areas of the building allow for varying amounts of deflection, this makes the whole façade resilient, long lasting and robust.

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Level 6 plan

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Ground floor plan

Credits

Client

Gaw Capital

Architect

Morrow + Lorraine

Contractor

McLaren

Project manager

Buro 4

Structural engineer

Peter Dann

MEP services and sustainability consultant

Mecserve

Cost consultant

Gardiner and Theobald

Landscape design

BBUK

Planning consultant

Gerald Eve

Facade engineer

Infinity facade consultants

Fire consultant

Jensen Hughes

Lighting designer

Studio Fractal

Signage and way finding

Badrock Design

Access and maintenance consultant

D2E

Principal designer

Shore

Project manager

Buro 4

Structural engineer

Peter Dann

MEP services and sustainability consultant

Mecserve

Ecological and acoustics

Waterman Group

Heritage consultant

Tavernor

Community engagement

Comm Comm UK

Servicing strategy

Icon

Lift consultant

Tony Warren

2024-03-25T17:17:10+00:00


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Source: Architecture Today