Broadwick House
The building is composed of ‘served’ space, consisting of the occupied floorplates, and ‘servant’ space which provides essential support to the floorplates in the form of circulation, wet areas and general services. These elements are distinctly expressed in the architectural composition. The floorplates or ‘served’ space, are arranged as a stack of efficient, glazed volumes utilising a simple structural system to create high quality flexible office space allowing for maximum daylight penetration. The facade expresses the clear floor to ceiling glazing, the consistent 1.5 metre planning grid and the capacity to cellularise the accommodation as required.
The secondary services, or ‘servant’ spaces, comprised of lifts, stairs and toilets are placed on the boundary adjacent to the blank wall of neighbouring Trenchard House. The principal vertical tower, with its dramatic glazed passenger lifts, lends a strong sense of identity to the building and can be clearly seen from both the Broadwick and Berwick Street approaches. Additional service cores are expressed as distinct tower elements on Hopkins Street. All of the circulation and services are given further clarity through a system of colour-coding and elemental zoning.
In keeping with the high level of activity at ground level, especially the retail areas of the Berwick Street Market, the shops, cafes and restaurants of Broadwick Street and the nearby Carnaby Street shopping precinct, the ground level of Broadwick House is set back to allow for an increased public realm on three sides.
In answer to the innovative and forward-thinking environmental criteria, the building is entirely cooled by a passive chilled water ceiling system, one of the first complete systems to be implemented in London. Overall, the building has significantly lower energy consumption compared to other similarly sized buildings. Broadwick House is also designed to enable the key environmental systems to be updated and improved, tracking technological developments over the life span of the building. A further important aspect of the environmental response is the provision of louvres and external blinds to each of the facades, which respond to localised conditions of solar gain, views, privacy and overlooking.
Flexibility
The building is designed to accommodate multiple or single tenancies, in either cellular or open plan configurations according to the needs of individual tenants or market demands.
Legibility
The tripartite composition of a setback public ground floor, the stack of office floors and the curved roof-top studio, along with the clear expression of the service and circulation components, have generated a high degree of legibility for both the building users and the public.
Public Realm
The inclusion of the public uses at lower ground and ground floor levels will compliment the office space and link the building to the busy surrounding streets.
Energy
Environmental sustainability and low energy consumption formed a key part of the brief. The building incorporates a passive chilled water ceiling system, as well as blinds and louvres to control solar gain and glare to the working spaces.
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