Grosvenor Gardens House was a significant Victorian-era Grade II listed building located on the eastern edge of the Belgravia estate in London.

Occupying a prominent island site, it was bounded by Grosvenor Gardens to the south, Beeston Place to the west, Buckingham Palace Road to the east, and Eaton Lane to the north.
Previously used as office space with street-level retail, the building was granted change-of-use consent and all necessary planning permissions to be transformed into approximately 85,000 sq ft of residential accommodation, 12,000 sq ft of retail space, and 8,000 sq ft of additional amenities, including a 6,000 sq ft wellness and spa facility.

Toureen was appointed to deliver a range of services, including deconstruction, basement construction, reinforced concrete (RC) frame construction, and façade retention.

The Grosvenor Gardens project had highly sensitive and opposing surrounding receptors that were situated away from road traffic noise and benefited (usually) from low baseline noise levels. Our work in the project planning stages led to a fully designed acoustic vehicle tunnel and full building height acoustic screen. Something we are not aware of having been done on any other London Project before. These innovative enhanced acoustic mitigation measures were tested ahead of works commencing by an independent acoustic consultant. The resultant sound performance of both the tunnel and acoustic screen test showed it provided 25dBA sound reduction during the floor by deconstruction and a 35dBA reduction when works reach ground floor and basement level. Considering that noise works in a logarithmic scale and so 3dBA is a doubling or halving of noise, this is incredibly substantial.