Abstract
In this paper, the external appearance of the traditional town housing and its evolution processes are analyzed. conclusions are as follows, 1. The main roof style of the housing type with the receding entrance (Genkan-kotai type) had been developing from the saddle roof to the saddle with the pent roof ("Irimoya"). 2. The roof of the kitchen transformed from the lean-to roof to the saddle roof, as the kitchen had been projecting from the main structure. 3. The roof style of the vestibule had developed from the lean-to roof to the saddle with the pent roof. 4. The morphological development of the external appearance of the traditional town housing had been motivated by the resident's aspiration for keeping his status.
