This paper aims to clarify procurement and construction process of Dependent Housing and private dwelling and buildings in occupied Osaka prefecture by the research of official documents in Japan and the United States.

 At the end of the war, modern architectures remained in the non-war-damaged areas of central Osaka. Unexpectedly, in Osaka, which became the base of the occupation army next to Kyoto in western Japan, they were requested on a large scale. In the procurement of buildings, the situation of disaster and hygiene and the scale of facilities were emphasized. The use of the requisitioned building was changed as needed, but 25 cases were not released until 1952.

 Privately owners have appealed to the Governor of Osaka Prefecture about the situation in which many properties are not returned even if the Treaty of San Francisco was concluded. As a result, the governor requested the Ministry of Foreign Affairs to release privately-owned buildings and private dwelling. The army facilities in Osaka city have been moved from the city center to several "suburbs". The "suburbs" recognized by the occupation forces were Sakai, Otsu, Amagasaki, and Nara.

 Former military grounds were requisitioned in the earliest days of occupation for example land around Osaka Castle, Kanaoka Camp in Sakai City. Because of the existence of the former Army National Land in Osaka Prefecture, it was possible to secure a vast site. In Hyogo prefecture, there was no former military grounds near the port of Kobe, lands for private owners were required, and the sacrifice of requisition in each city was different.

 The privately-owned requisitioned dwellings in Osaka Prefecture were located in the Hokusetsu area (Minoo, Ikeda) for the 5th Air Force, the suburbs of Osaka City area (Sumiyoshi, Abeno) and the Senboku area (Sakai, Takaishi) for the 25th Infantry Division. The Hamadera residential area and Ueno Shiba residential area, which were formed in Sakai city in the early Showa era, were requisitioned for the largest number of dwellings in Osaka prefecture.

 The "Hamadera Park DH" for the 25th division of the 8th army was constructed in Osaka Prefecture Hamadera Park ( in Sakai City and Takaishi City) from Sep. 1946 to Jan. 1948. This was the design supervision of the Osaka Prefecture Special Construction Division as Dependent Housing, and the construction of Obayashi, Zenitaka, and Asanuma groups. The 8th army 323th technical unit also conducted on-site instruction. It was used as the DH of Itami Air Force Base after 1952. Although the release movement was launched against the long-term entry of Japanese people to Hamadera Park, the decision to completely return it was delayed in Feb. 1958 when the return of Itami Air Base was decided.

 Consistent and enthusiastic negotiations with the Ministry of Foreign Affairs by Osaka Prefecture have come to fruition. While the relationship between Osaka City and suburban residential areas outside the city remained unchanged during the occupation period, it became clear that the scope of the "suburbs" expanded and the army moved to other prefectures.