The purpose of this study is to clarify the method and the process of the townscape improvement that is linked with the advanced improvement in the old town-center. The townscape improvement of Taisho Romantic Street have been linked with the advanced improvement of the neighboring area in Kawagoe-city. As a result, the various factor, which had led the reduction of the time for progress and the contribution for the vitalization in the town-center, was grasped according to analyze the distinctive feature on the theme, the organization and the method of improvement of Taisho Romantic Street.