資源循環型社会に向けた住宅生産システムの経済性評価に関する基礎的研究

抄録

This research using the present value method, deals with the economic advantage of detached residential houses, which permit resources circulation for a better sustainable society. We intend to set up a model of renewal cost, which can respond to user's life stages, and to calculate the life cycle costs for 180 and 60 years in a manner to meet the changing effective interest rate and varying rate In cost. The result of this study has convinced us that the resource circulation houses provide an economical advantage, e.g. when the effective interest rate is 2% and the decreasing rate of cost is 0% as prevailing in Japan at this moment, that will give an advantage of 61% over conventional houses for 180 years.