This article considers the development process of Jiuzhuang Community Garden in Taipei City to analyze the practice of community gardens and their relevance to urban health and human well-being. Previous studies have highlighted the contributions of community gardens in areas such as food supply, climate adaptation, local culture, and social interaction. Using qualitative methods, such as participatory observation, focus group discussions, and semi-structured interviews, this study demonstrates the co-beneficial relationships between various factors and the synergetic effects they bring to physical and mental health. By adopting a perspective that incorporates social infrastructure and the Satoyama Initiative, this research interprets how community gardens can support and develop place-based health concepts and respond to urban complexity. It demonstrates the pathway to enhancing urban health through interventions in urban spaces, especially during the COVID-19 pandemic. Through the examination of a community garden case, this study explores the potential connections between SDG 3 and SDG 11, emphasizing the role of green space provision, place identity, and participatory management in enhancing physical and mental well-being. This study also indicates the necessity of integrating the perspectives of public health and urban planning in addressing urban health issues. This integration is essential to shift away from a disease- and mortality-centered approach and towards a health paradigm centered on lifestyle and social interactions.