The inspiring, special features of the terrain, and the rock rising on the neighbouring plot, influenced the architecture of the building. The south-eastern corner of the plot lies almost 10 metres higher than the ground-floor level. In this situation it is especially true that the roof of the building acts as a fifth facade. The neighbouring rock and the quarry that once operated here bring a block of stone to mind. By opening this up in an abstract way with huge openings (glazed surfaces), we created a building that is a pleasure to live in. In developing the proportions, we drew on the rules of the golden section to determine the mass and the size of the solid and perforated (glazed) surfaces of the facade. The static quality of the stone block is balanced by the openings and the dynamism of the terrain. The dynamism of the building is reinforced by the terrain rising along the length of the plot, the staggered placement of the openings on the ground and upper floors, the design of the balcony slab and the asymmetrical shaping of the roof.