Some rooms are dark and some light. However, when the house is full of contrasts that usually looks very modern and attractive. Kouichi Kimura Architect has designed many attractive homes. The house is really black but almost white exterior courtyard. Although they usually have some unusual things in the design. Most of the design is very modern and minimalist architecture like most Japanese today. Interior of contrasts, too. Completely black bathroom is also not uncommon at all. There are more interesting projects on the site Kimura Kouichi Architects.