houses type i). The traditional and contemporary houses were collected for analytical process by followings. 1. The analyses of the traditional houses' characteristics 6) are presented in terms of timeline, regional characteristics and common features. 2.The arrangement of function is implemented to describe cooking and sleeping areas which are functional areas in Thai data by the parameter of average size, ratio, sequences, main surface and sleeping direction. 3. The composition aspects of spatial arrangement between traditional and contemporary were compared in this section. The relationship between traditional and contemporary houses was also investigated and how spatial design affected socially and environmentally 1.3 Relevancy The studies revealed houses spatial structure in Asian countries. For the spatial structure of traditional houses, the characteristics of living space in wooden houses 7) in traditional high ridge-houses 8) and the spatial characteristics of traditional houses in functional basic activities, which are living,