This is a small three-story apartment. A small site (58.66 m2) has eight micro dwelling units with a floor area of 10 m2 or so. The room is equipped with a small shower unit, a space-saving toilet, a mini-kitchen, a loft bed and so on, enough to prepare for tomorrow's activities. Residents based on this small space, Tokyo can be shared. This is about 10 minutes by subway in the center of Tokyo. It is in an area where the ground is weak and small wooden houses are densely packed. In order to secure the safety of this building and to construct it economically and rationally, (1) examination of construction technology to be adopted, (2) operation of laws to be complied with, . (1), because the road around the site is narrow, it was necessary to divide the building and carry it to the site. (1)’. It was necessary to reduce the weight of the building because the ground was so weak. (2). Because it is a wooden house dense area, it was necessary to maintain fire performance. (3). The size and use of the necessary facilities (WC, kitchen, bathroom, bed, refrigerator, washing machine, storage, etc.) for the house, and whether they are really needed was considered.
The structure adopted for (1) is wooden. Since the construction method to keep fireproof performance was developed even with wooden construction, (1)’can be cleared,too. As we were able to reduce the weight of the building, we could adopt the method called ground replacement method. It is a method of removing and stabilizing the soil of the same weight as the building weight (3). I considered many small, high-performance, low-cost equipment. I think that a feeling of oppression is reduced by a slightly high ceiling (above 2.57 m)