抄録
This paper analyzes the transformation process of the distribution of housing size by the index of number of surplus room. The main conclusions are as follows.1) The average of the number of surplus room has been increased. It is mainly because the decrease of household member and the increase of residential room of housing. But recently, only the former is effective. 2) The difference of housing condition among households of owner-occupied has decreased. However, after 1978, it turned to be expanded. 3) The average condition has wholly advanced but the difference within the region is vary by region. Regions of higher-condition make the transition to equalization, and regions of lower-condition seem to generate the difference within the region.
