This research aims to understand the problems occurring in each of the types of buildings and residents, based on the questionnaire survey of public housing and improvement housing that was implemented as a housing environment development project. The main indicators such as “very old buildings with single, elderly inhabitants,” “housing standard,” and “deteriorated housing” were first assessed by employing principal component. Then, using cluster analysis, the entire objective was divided into four types and the trend of problems for each type were analyzed. Research outcome may become reference data for the redevelopment and improvement of housing currently being implemented.
