The project comprises the creation of two deep east-west platforms which emerge at street level via two new ticket halls south of Oxford Street in the heart of London's West End with connections to the existing London Underground Station. The interchange will serve 230,000 people daily once complete in 2017.

 

The practice has also completed a detailed urban integration study addressing pedestrian and vehicular traffic, parking provision for local residents, use of materials in this conservation area, security, connectivity, and wayfinding.