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2300 - Grange St Martins


Alongside Orms Architects, HTS is working on the redevelopment of the former Central Saint Martin’s site in Holborn. Works include converting the Grade II* listed Lethaby Building to hotel use, a four-storey vertical and lateral extension to an existing 60s tower, three adjoining new-build RC structures and a new deep basement across the majority of the site.

Key Features

  • Retention of the existing 60s tower and excavation of a new ~20m deep basement below
  • Two new large, below ground, column free event spaces with steel trusses will support new and retained structures above
  • Deep underpinning of the Grade II* listed Lethaby Building footings to enable the excavation of the new basement
  • Piling adjacent to and construction above a Crossrail tunnel

Client: Grange St MartinsArchitect: Orms

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Sam Ling
Mark Tillett
Susan Mantle
Khizer Khan