By skilfully exploiting the site to the full and sinking the lower floor partly into the ground, it was possible to achieve a total floor area of 250 m2 for this single-family house with a self-contained flat. The plinth storey, 40 m long and only 5 m wide, is cut into the slope of the site at the rear. In contrast, the south face is open over its full length. All rooms, including the bathroom, enjoy direct links with the external realm – via an intermediate zone on the ground floor and a roof terrace at upper floor level. On the upper floor, which consists of two polyurethane-coated wood containers with picture windows, are the parents’ bedroom and an additional living room. Access to these areas is via a linking studio space.