This study is aimed to make clear the structural characteristics of residences an (1 needs f6r resid 箆 ntial environment of a provincial city , Mito of n)araki Pre£ ,皿 1e residences are classified into 5 types , and thei匸 distribUtion is described almo ' st a concenthc circle , bUt some knots by the recent (kvelopments are fbmdin rural districts and around the down tewn . 5 typical districts '