Winner 2023

Award for
advancing industry knowledge of steel reuse in buildings

Project Description

The refurbishment and two-storey extension to a 1980s concrete-framed commercial building, in Sloane Square, London to create a modern net-zero sustainable workplace. The pioneering project champions circularity and sustainable design and is one of the first commercial developments to use reclaimed steel in the UK.

Judge’s comments

The project was designed with circular economy and sustainability thinking from the start, prioritising retention over demolition, reuse, recycling and trialling innovations such as material passports, and methods of procurement and waste management.
A pioneer and exemplar for the direct reuse of structural steel in London. Over 25 tonnes of steel were reused in the construction, which has led to further research into reusing pre-1970 steel and has inspired others in the industry to go further.

Project overview

Structural Designer

  • Heyne Tillett Steel

Client Name

  • Grosvenor


  • London, UK


  • Barr Gazetas

Principal Contractor

  • Blenheim House Construction

Key Contractors

  • Gerald Eve



    Todd Longstaffe-Gowan

Year Submitted

  • 2023

Key attributes

  • Planet, Profession