Arousing the public interest of long life periods of the houses, the importance of house maintenance has been realized again. Considering the fact that many of the houses are being replaced despite their satisfactory conditions in physical endurance, it is necessary to search for some way to prolong its life. This paper analyzes from the survey of the present of house maintenance, extension, remodeling and rebuilding behavior to grasp the relation between maintenance and house life, with a goal to find ways to lead rebuilding-motivated factors towards extension and remodeling activities, thus promoting longer lives of Japanese houses.
