The object of this study is to get a fundamental guidline for the architectual planning of the institution for the elderly with dementia. We studied cases to make clear the factors of a daily life at home, its chenge by relocation and process to become familiar to environments of the institute. We showed that to keep a daily life at home stabilizes the condition of dementia,to make a familiarity with other elderly or staff, a territory and a pattrn of behavior are important to become familiar to environments of the institute and some propositions for the architectual planning.
