Most of the area sufferring from the extravagant population decrease in the center of Tokyo is designated as the commercial area under high Floor Area Restriction controls by the Building Standards Law and the City Planning Law. Here we chose GINZA as a typical example of this area. According to the research on the actual situation of the physical closeness of the residential environment in GINZA area, this study shows the nececssity to improve the environmental condition of houses such as sunshine, draft and daylighting.