Abstract
This paper tries to evaluate the master plans thrrnugh the case study on the housing master plans in Tokyo Wards with the KJ method originated by Prof Kawakita For decades we have had a controversy between the need and the needlessness for the master plan: The need for it is mainly to set goals to the future and the needlessness is asserted against the lack of feasibility within it It is likely seemed to be a sort of paradox. A planner has been required to make a master plan in this dilemma But we have no authorized evaluating way for the contents of master plans. Through this study with the KJ method, we find that the policies in most parts of the plans does not keep necessarily consistency between problems and objectives and treatments. We propose to get coherency on theprocess of making master plan.