In 1990 David Chipperfield Architects completed a house for the photographer Nick Knight and his family in Richmond, Surrey, extending and reworking an existing 1950s suburban house. Over the last ten years, however, with the photographer's family expanding, this first house consequently needed to be extended, providing additional living, working, and storage space, as well as the opportunity to enlarge the rear garden. Early designs for this second building initially explored the possibility of extending the architectural language of the first 1990 house, but this approach was soon rejected as the unity and coherence of the original project became obscured. Finding an architecture that would exist on its own and in tandem with the older house was complicated further by the sensitive planning environment. In response to these reservations, the architectural concept for the new addition placed an archetypal house form - with a pitched roof and two gabled ends - alongside the original house. This new element was then connected to the existing house via an abstracted glass box. Clad in translucent fibreglass shutters, this connecting piece provides a link to the older house at both floors, as well as containing a bathroom and storage spaces. Accessed through this volume are the two floors of the new house, one on top of the other - giving a sense of openness exaggerated further by the large bedroom window which slides vertically to transform the upper room into a balcony. In this way, the themes established in the original project - of space, light, and view - are continued in this addition, continuing the spirit of the existing house while pursuing and introducing a different figurative idea..