**3. Sustainable housing design guidelines for general use**

Using the methods illustrated in the previous section, we have already produced and revised sustainable housing design guidelines, chiefly for use in Japan. Based on these studies and practical results, this section anew demonstrates how to produce sustainable housing design guidelines for general use. In line with the process of producing guidelines, this section consists of two subsections: (1) housing-related problems and requirements for sustainable design, (2) conversion into housing elements, variables, and desired values.
