Architecture, Building and Structure Design Ho-House Residential Building by Katsufumi Kubota Ho-House is a private residence built in a crowded residential area of Takarazuka, Japan. The design begins with the idea of cutting and folding a sheet of paper. Thin white slabs of reinforced concrete are folded to shape the space, and the slab edges are cut so the structure appears thinner than it is. Custom sash hardware makes the openings look seamless. Behind the parking space, a courtyard terrace forms a private area that connects the living room, dining room, bathroom and children's room. The house opens to the sky and links the interior with nature.