O Residence is a minimalist house located in Tokyo, Japan, designed by Shinichi Ogawa & Associates. In spite of standing in a central dense urban area of Tokyo, this house is privileged to have a very nice landscape to enjoy. 
Like 3 box-culverts sitting on top of each other, the building of 12mx9mx9m displays a very pure expression. The volume is closed all around, except in the one façade that overlooks a green scenery, which is totally open to the exterior.