This study is aimed to make clear the structural characteristics of residences and needs for residential environment of a provincial city, Mito of Ibaraki Pref.. The residences are classified into 5 types, and their distribution is described almost a concentric circle, but some knots by the recent developments are found in rural districts and around the down town. 5 typical districts' communities are characterized by population movements and housing composition. Needs for residential environment are different each other type, that is daily life efficiency in down town and the suburbs, and community facilities in planned estate and village.
