Currently, Asia accounts for 40% of the world's urban population, which will increase to 56% by 2030. Urbanization is one of the biggest issues in Asian countries. In addition, in the economically developed countries such as Japan and South Korea, the aging problem has also emerged. In order to achieve a sustainable urban society, it is increasingly necessary to find urban design innovations and appropriate research methods and tools. Thus, this special issue focuses on spatial structure for future sustainable cities in Asian countries.