The Purpose of this study was to examine the environmental characteristics of housing for the elderly preferred by the middle aged. The residential environments include three types of elderly housing differred in the availability of care service as well as indoor and outdoor environmental characteristics of the housing. The results of this study were as follows: The most preferred type of the elderly was the elderly housing with no care service followed by the housing with intermediated care service and dependent housing with full care service. The preferred type of housing for the elderly was significantly related to the demands for the demands for the indoor and outdoor environmental characteristics of the comimg elderly.