The purpose of this study was to investigate housing DB construction for elderly people. Document research and content analysis methods were used in this study. The major results of this study are as follows. The number of elderly household is increasing very rapidly. In particular, they consist of a single person or a couple. These households prefer to live and age in a detached house. However, the social welfare system does not satisfy their needs. Therefore a systematic social support or welfare system is required to reflect their needs. For example, related works of housing welfare need to be prepared so that their data base system correctly reflects the socio-demographic characteristics and living conditions of the elderly.