This study aims to analyze the neighboring problems of existing residential area caused by snow fall during winter season in Sapporo, and to get implication for improvement of the neighboring housing environment. The major problem affecting the neighboring environment is the snow fall from the neighboring roof. The physical factors contributing to this problem are roof shape, roof slope direction and distance from the neighboring slope roof. The size of housing site doesn't always work to reduce the problem. To solve the neighboring snow problem, it is important to combine the physical environmental factors such as roof shape, roof slope direction and set back distance. It is desirable that this set of factors need to be introduced in the district planning for housing in the north cold region.
