Recent flood damages in urban areas have increased the need for urban planning and building measures to respond to inundation risks. In this article, in order to obtain suggestions for building and land use management based on inundation risks, floodproofing plans are examined for a two-story wooden detached house located in an urban area. Then, the additional building cost compared with the benchmark standard plan, and the amount of damage reduction due to floodproofing are estimated. Finally, the applicability of such floodproofing measures are examined by analyzing the cost-effectiveness of plans under various conditions of inundation probability.
