Abstract
Today, we need a large stock of houses. One of the effective measures of the stock increasing is to make the market of used houses more active. However, in Japan, the market for used houses is dull, especially, for detached ones. Then, this reason is remained to be elucidated. In this study, we analyzed the data from“housing survey of Japan” and “the research in the actual condition of Japanese housing”. We found out great differences of coefficient of used houses among each prefecture. And we knew some character of used houses and inhabitants of them.