The purpose of this research is to clarify the characteristic and usage of vacant lot through the house rebuilding. The results of current study were as follows. 1) The number of small-scale multiplex house has increased by means of house rebuilding. 2) The shape and usage of vacant lot in the site has simultaneously changed with the increase of the number of small-scale multiplex house. 3) Vacant lot has been versatilely used such as spaces for housework and community. 4) Vacant lot belonged mostly to public lands.
