The purpose of this paper is to clarify the residential conditions of the elderly at their houses as historic buildings and the issues of their future residence, by the case study in the Iriki preservation district of historic buildings, Kagoshima. This study took three steps. First I carried out the survey of the 14 historic buildings where the elderly persons lived in the Iriki district, next devised a workshop method that simulated reconsideration of current room usage at a model of Iriki traditional house considering the change of physical condition of the elderly. Then the workshop was held in Iriki.
