99 Baker Street

London, W1
British Land
Planning consent and disposal 2008
20,000 sq ft
£3.5m
Office

Hawkins Brown, Architect
RJ Witt, Structural engineer
Andrew Reid and Partners, Building services engineer


M3 undertook feasibility studies to establish refurbishment options aimed at increasing the value of this 20,000 sq ft 1960s building. M3 recommended and implemented a complete strip out of all six floors to affect a derating whilst assessing the most profitable refurbishment option. The management of the design and planning stages led to a speedy consent and subsequent sale of the building.

Project highlights


  • Creation of a new roof and plant area
  • Provision of a new façade on the Baker Street frontage
  • Extension of the lift to serve an extended 6th floor
  • Removal of a secondary stair core to create more lettable floor space