Abstract
In this paper, we purpose to report on the tendency of the OPEN BUILDING in Netherlands and Finland. We defined the significance of OPEN BUILDING as “correspondence to the various needs of dwellings”,“realizaition of the long term durability of housing”,“device of community-planning”.And these 3 significance are realized by “the technical-correspondence” and “social -correspondence”. We considered 6 OPEN BUILIDING project from the view point of the “technical-correspondence” and “social-correspondence” on the 3 significance of OPEN BUILDING.