Abstract
Quite a lot of former military properties were left in Yokosuka City that was the naval port at the end of the World War II. It is known that they were converted to various usages according to the special plan named "Yokosuka City Tenkan-Jigyo-Keikaku" made in 1950. However, it is not known that the local government of Yokosuka City and the national government, that is, the Ministry of Finance were separately making the detailed conversion plans of the former military properties immediately after the end of the World War II. Then, I clarify the compositions and conversion ideas of three conversion plans that the local government of Yokosuka City and the national government made. In addition, I clarify the discrepancy of the conversion plans by comparing the conversion ideas of an individual former military property.