This paper focuses on the concept of urban social sustainability to explore main themes and dimensions by a comprehensive comparative overview. The first objective of this research is to clarify the social sustainability definitions, principles and frameworks through reviewing the existing literature. Later, it attempts to recognize the major factors affecting social sustainability in urban context focusing on satisfaction of human needs. As a result, to connect between theory and practice, Maslow hierarchy of needs has been chosen on the subject of human needs in urbanism. Finally, spatial qualities made by reflecting these needs to space designing such as Comfort, Privacy, Legibility, Diversity, Public Participation, Visual Richness, Sense of Place and Identity. In addition, reviewing studies conducted in different urban scales (Micro/Medium/Macro units) revealed that previous attempts on urban social sustainability emphasized more on Macro Scale (city) and Medium Scale (Neighborhood) units especially emphasizing on urban renewal and regeneration strategies especially in developed countries

Today’s exponential advancement of information and communication technologies is reconfiguring participatory urban development practices. The use of digital technology implies new forms of decentralised governance, collaborative knowledge production, and social activism. The digital transformation has the potential to overcome shortcomings in citizen participation, make participatory processes more deliberative, and enable collaborative approaches for making cities. While digital tools such as digital mapping, e-participation platforms, location-based games, and social media offer new opportunities for the various actors and may act as a catalyst for renegotiating urban space and collective goods, digitalisation can also perpetuate or even attenuate existing inequalities and exclusion. This editorial introduces the thematic issue “Citizen Participation, Digital Agency, and Urban Development” which focuses on the trajectories and (dis)continuities of citizen participation through digitalisation and elaborates this with examples from Europe and Asia on how the digital transformation impacts, challenges, or reproduces hegemonic power relations in urban development.

As cities strive to meet the Sustainable Development Goals (SDGs), repurposing industrial heritage is emerging as a crucial yet frequently overlooked approach to fostering urban sustainability, resilience, and social inclusion. While SDG 11 acknowledges heritage’s role in sustainable urbanization, its implementation remains inconsistent, hindered by prevailing economic growth models, voluntary governance structures, and rigid sustainability metrics. This paper examines adaptive reuse as a sustainability tool beyond 2030, drawing from concepts such as placemaking, urban commons, and resilience-based design. Through case studies from diverse urban settings, it highlights how community-led sustainability initiatives challenge top-down, performance-driven SDG frameworks. Emphasizing community-driven placemaking, decolonial heritage approaches, and circular economy principles, the study calls for a fundamental shift in global urban sustainability paradigms. Looking ahead, sustainability strategies must incorporate heritage-led development that prioritizes social and environmental well-being, foster participatory governance to empower local communities, and embrace broader well-being metrics beyond GDP. Additionally, adaptive reuse must facilitate just transitions, preventing displacement and gentrification while ensuring inclusive regeneration. By connecting critical urban theory with practical applications, this paper contributes to the ongoing discussion on how industrial heritage can drive a more transformative and community-centered sustainability agenda beyond 2030.

The concept of "Affordance" is increasingly used among urban designers because it adds theoretical clarity to the understanding of the link between the environment, human behavior, and human needs fulfillment. Affordances emerge only when the different characteristics of individuals, such as their physical dimension and abilities, social needs and personal intentions are matched with the features of the environment. However, in formalizing social sustainability, a central issue to be addressed is the relationship between people and their environment in social sustainability processes. The definition of "Affordance " of a particular urban context will provide the means to make precise the opportunities for achieving social sustainability. With reviewing the related literature, it is concluded that the multidisciplinary relations between "Human Needs " and "Social Sustainability" with the aim of "Theory of Affordance" has been out of scholar's agenda. This paper fills this gap with proposing an integrated model of fulfilling human needs in the urban context through achieving social Sustainability with the aim of cognitive affordance