The generally extensive spatial concept forms a contrast with the relatively small available building area. The architects tried to use the available area in the best way possible, resulting in the cubic shape of the final building. The ground was excavated, raised and formed as a building whose visual appearance looks similar to the surfaces of the surrounding terrain. The pitch of the roof follows the slope of the ground. The building has an outer skin similar to the dark earth's crust and lighter coloured notches resembling fissures in the earth, giving the building a monolithic and confident character. The lighting and entrance bays are set back and emphasise a clear border between the interior and exterior.The building has a reinforced concrete structure that corresponds to the static requirements. A new kind of fibreglass-reinforced concrete slab was used to implement the dark monolithic outer skin. The entrance area combines the working and living areas. The working and living areas on the ground floor have a very light-toned atmosphere as well as open rooms in the private area. The living area opens up towards a terrace and a swimming pool on the south side. A terrace in front of the basement opens up towards a garden and protects the residents in their sleeping and bathroom area from the glimpses of onlookers.