Project Information

Location: Knightsbridge, London
Main Contractor Structure: Patterson Construction Ltd
Architect: David Quigley Architects
Structural Engineers: Sinclair Johnston & Partners

The Challenges

Refurbished Prime Terraced House

Demolish rear four storey extension and replace with new five storey extension. Create sunken garden,Underpin house, remove existing timber floor and replace with new concrete floor gaining 300mm of head height. Remove upper floor and replace with structural steel and joists to new levels, remove and replace roof.

Structural Engineering Works included:

  • Demolish rear four storey extension
  • Rebuild new five storey brick extension
  • Underpin existing house
  • Lower existing basement floor to give 3M head height
  • Form new sunken garden to rear
  • Prop rear of existing house to for new opening
  • Remove existing floors and raise in height
  • Demolish existing roof and raise 300mm
  • Remove existing and install new drainage
  • Lower front vault to form new showers
  • Kemperol flat roof with sky lights