More than 75,000 emergency houses, called the standard prefabricated house, were built in Okinawa after the war in approximately four years, beginning in 1946, which made a great contribution to reconstruction. The standard prefabricated house was designed by a local architect named Hisao Nakaza at the U.S. naval military government Okinawa public works department on Nov. 30, 1945. The purpose of this study is to clarify the details of the situation about the process, the design and the supply system of the standard prefabricated house, and to also clarify the actual factor of the massive and quick supply.

Cement roof-tile in Okinawa had a great impact on the formation of the Okinawan landscape. This cement roof-tile was brought from Taiwan and produced mainly in Nago City, Okinawa, and spread widely throughout Okinawa. However, Currently, cement roof-tile is not being produced. The purpose of this study is to investigate the situation of cement roof-tile in Nago City and to clarify the vicissitudes of cement roof-tile and their uses in building components. The results of the survey showed that cement roof-tile use was on the decline. However, the survey also revealed that cement roof-tile is used in distinctive ways.

Hisao Nakaza was one of a handful of architects who contributed to building activities in Okinawa before, during, and after the Second World War. He engaged in the postwar recovery construction in the forefront immediately after the war. This study defines the period before 1960 as the dawn of concrete house popularization in Okinawa and aims to clarify the aspects of the development of architecture in Okinawa during this period, examining the activity of Hisao Nakaza, who played a leading role in laying the foundation for the spread of concrete buildings.

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