This study is an evaluation of housing construction systems seen in the light of progressive technology and changing human environment. In the past, repetitive use of standardized complements and rationalized functions without broad flexibility for variation in plan, for change, or for user participation in the construction process itself, has resulted in a sterile and monotonous physical environment. The dominant construction systems must be derived from practical consideration of user requirements, modular planning, structural system and subsystems. The objective of this thesis is to contribute a solution to conflicts between technological innovation and human needs through the comparative study of several contemporary construction systems in the United States and Japan. To accomplish this objective, this thesis selects particular housing systems, sets up criteria for evaluation, and evaluates the housing systems.