Abstract
Plans of houses were collected across the country, most of them are ones of ready-built single-unit houses, for the survey of clarifying the actual contemporary middle-class housing plans in Japan. The conclusions of this survey are followings. 1) 86 percent of the collected plans have a guest-room, and 99 percent of them are a zashiki. 2) The ratio of the houses which have a zashiki goes high according to the scale of the houses, and a tsuzukima-zashiki is much supplied than a hitotsuma-zashiki. 3) The plans are mainly classified into 4 types, from a viewpoint of the space organization between a guest-room and living room. There is no regional difference of this tendency across the country. These 4 types of plans are thought to be the major types of the plans of Japanese contemporary middle-class housing.
