The old single-storey warehouse of a row house in Ledeberg is replaced by a new wooden roof. As large a rectangle as possible, incised by the main building, is incorporated. Patios are created where the plane breaks away from the hilly plot boundary.

Two wooden nut beams in a T-figure support the roof, supported at their intersection by a new concrete column. The latticework follows the direction dictated by the main beams. Light walls made of aerated concrete create rooms and insulate the common