A substantial extension to a private house in Wimbledon, to provide a new living / dining area, an open kitchen, a toilet and shower room, and a utility area. The new areas are unified by a limestone floor (with underfloor heating). The extension has a curved green roof, solar-thermal water heating and rainwater recycling (for toilet-flushing and for the garden). More images can be found on our website www.surveydesign.co.uk