Aging Together: A Sustainability Assessment Framework for Double-Aging Neighborhoods—Kükürtlü District

Urban neighborhoods experiencing socio-spatial pressures increasingly struggle with sustainability, especially in contexts where top-down redevelopment models dominate. In Turkey, the commonly used “demolish-and-rebuild” approach is often criticized for neglecting urban identity and the continuity of local communities. This study examines the Kükürtlü Neighborhood in Bursa, a “double-aged” area characterized by both an elderly population and aging housing stock. Using a mixed-method approach, the study integrates the EcoDistricts framework with participatory spatial analysis and Interpretative Phenomenological Analysis (IPA) to assess sustainability across three priority areas: place, health and wellbeing, and connectivity. Results reveal that while the neighborhood faces structural limitations and underutilized public spaces, it benefits from strong social sustainability rooted in cultural continuity and intergenerational bonds, especially among long-term residents. Conversely, newcomers demonstrate weaker place attachment. These findings inform a set of inclusive, aging-in-place strategies aimed at balancing physical renewal with community preservation. Building on these insights, the study proposes a context-sensitive and potentially adaptable framework to guide sustainability efforts in similar aging urban contexts. The research contributes to international discussions on urban transformation by emphasizing the importance of integrating local lived experiences with spatial planning tools, offering a model for navigating demographic and physical aging in mid-sized cities.