This study focused on outdoor spaces in Johnson Town. The objectives were to clarify; 1) the components, 2) how the buildings open to outdoor spaces, and 3) the actual usage. The findings were: 1) the distribution characteristics of outdoor spaces are buildings, roads, parking lots, front alleys, back alleys, pavements, deck terraces, and physical boundaries, 2) U.S. House area tends to open to the south facing the street, while Heisei-House area tends to open to the front alley, and 3) the outdoor space is managed by Isono-Shokai and its tenants. Roads are classified into four types according to traffic volume.
