SPECIAL ISSUE (2024) Sustainable Legal Infrastructures: Comparative Responses Across Cultures and Systems edited by Lucia Ruggeri, Lécia Vicente and Sara Zuccarino Circulative Bottom-Up Processes for Sustainable Development as a Prosumer: Lesson Learned from Asia by Kozue Kashiwazaki This paper discusses the relationship between economic and urban development through case studies in Asia. Firstly, it introduces housing issues and regional disparities due to rapid urbanization in Asian countries, with a case study in Thailand. To consider sustainable development to support the next stage to review lifestyle, this study then introduces a new business model from a Japanese small enterprise as an advanced case. Through the subsequent impacts of bottom-up processes, the expanding cycle demonstrates a further vision of the potential of sustainable development. DOI 10.23815/2421-2156.ITALJ ISSN 2421-2156