House in hill

This villa is surrounded by trees on a hillside in the national park in Japan. The site is located on a south slant near a hilltop on a mountain ridge. Considering to preserve the surrounding landscape as intact as possible, the shape of this villa is curved by tracing the landscape contour line. Vertical interval of slant where this villa exists was divided at some floor levels. The building is consecutive with geographical features in the surrounding in a ground plan as well as a in a cross section.