A contemporary space housed within a Grade II listed landmark

The challenge

TTSP was commissioned to create a contemporary and flexible environment for the Foreign and Commonwealth Office, working with the grandeur of the building’s 18th century architectural structure. This is the building that once housed Winston Churchill and former naval intelligence officer Ian Fleming.

The approach

Under the watchful eye of Westminster City Council and English Heritage, we demonstrated our expertise and experience of transforming the interiors of listed properties.

With an inherent appreciation of the challenges associated with this type of refurbishment, we started with a thorough understanding of the building’s architecture and the space we were working with.

The result

The dramatic new space spans the building’s six floors over a net internal area of 21,000m², worthy of the building’s external grandeur.

The introduction of contemporary design vernacular in steel and glass to new circulation areas and interventions improve vertical circulation, which dramatically enhances the building’s workplace functionality.




Project Size:

Appointment Duration:

Construction Value:

Form of Contract:


Foreign and Commonwealth Office

36,000m² gross external

1999 - 2001

£45 million