[Purposes]The Sub-cellar house in the Yuanshui River basin exhibit significant issues in terms of suitability for the elderly.Hence,this study aims to modify Sub-cellar house for elderly-friendly renovation,which can not only improve the living environment of the elderl...MORE [Purposes]The Sub-cellar house in the Yuanshui River basin exhibit significant issues in terms of suitability for the elderly.Hence,this study aims to modify Sub-cellar house for elderly-friendly renovation,which can not only improve the living environment of the elderly but also promote the modern adaptability of tradit...