Exploring the Nature of Third Places and Local Social Ties in High-Density Areas: The Case of a Large Mixed-Use Complex

Evidence on the social sustainability of higher residential densities, as planned for in compact city policies, is mixed. Understanding the factors contributing to social sustainability in these contexts is key to compact cities' future success. This paper clarifies the concept of “third places”, spaces where people socialise and develop “weak tie” relationships, and appraises its relevance to social sustainability at high density. Findings around the form of third places and weak ties are presented from a mixed-use high-density complex in Sydney, Australia, facilitating the identification and development of spaces contributing to social sustainability at higher residential densities.