The interior design of this single-family house not only emphasizes the spaciousness of the villa but also extends the living space to the exterior. The design of the first floor emphasizes the length and openness of the house. Three anthracite cubes, deliberately set off from the exposed concrete facade, divide the first floor into three areas and enclose a bar, a wardrobe, a guest toilet and a fireplace, in addition to the kitchen. The function of the cubes are hidden behind a calm joint pattern. Only when the doors, flaps and niches are opened the variety of materials and details of the interior is revealed: oak, yellow onyx, black steel, concrete, mosaic tiles, various color finishes as well as special fittings and handmade handle solutions.