The study aims to analyze the demand and the effect for the barrier-free house from the economical viewpoint. Firstly, the questionnaire for inhabitant is executed to investigate the willingness to pay for each level of barrier-free: Using these data, the following analysis is executed. The Cobb-Duglass function is used as the demand function. The willingness to pay is used to analyze the effect of reduction of burden. From the results of the analysis related to the effect of the subsidy, regardless of the subsidy level, the demand of the arrangement of handrail was high, and the average of willingness to pay was nearly 1,100,000 yen.
