Collective housing built in the residential section of the center of Tokyo designed by Japanese architect Sou Fujimoto

The collective housing by architect Sou Fujimoto was built in the residential section of the center of Tokyo. It consists of four dwelling units, including the owner's dwelling unit. Each dwelling unit is made with two or three independent rooms of prototypical "house" shapes, and the two rooms exist, separated like a combination of the room on the first floor and the room on the third floor, and outside stairs connect them. That is, it can be said that each dwelling unit is realized by the experience of two rooms and the city when passing along outside stairs. When you go up outside stairs, you will have an experience that it is a wonder climbing a big mountain such as a city.