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1907 - One Berkeley Estate


One Berkeley Estate is the redevelopment of an existing 1970s RC frame for hotel and office use. Generally the existing structure is demolished to level seven, and a new two-storey rooftop extension installed. There are also side extensions into Dover Yard to the rear, plus a new annex building.

Key features

·       Extensive archive searches and intrusive investigations to understand the capacity of the existing building

·       Justifying existing superstructure and raft foundation for increased loads with minimal strengthening works

·       Satisfying ground movement constraints imposed on the development by underlying London Underground service tunnels

·       Detailed assessment of the existing and proposed building stability to minimise proposed interventions

·       The service yard at ground floor level will be transformed into a green and biodiverse public realm

·       Temporary works design for global stability, basement walls and retaining a boundary wall adjacent to 40 Dover Street

One Berkeley Square comprises the redevelopment of an existing eight-storey post-war office block and hotel front Piccadilly.

Client: CrosstreeArchitect: Allford Hall Monaghan Morris

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Mark Tillett
Elliott Furminger