From Slum to Social Infrastructure: Co-Designing a People’s House for an Informal Settlement – Case Study of Sahlabad, Shiraz

Informal settlements continue to present one of the most persistent challenges to urban development in rapidly growing cities, particularly in the Global South. These settlements are typically characterized by inadequate infrastructure, social exclusion, and limited access to formal urban services, yet they represent sites of resilience and community initiative. In the case of Shiraz, Iran, the Sahlabad settlement exemplifies these conditions, where residents face multiple socio- economic and spatial disadvantages. This research investigates the role of a community (People’s) house as a catalyst for enhancing public participation and collective action in such contexts. Employing a mixed-methods case study approach, the study draws upon field surveys, participatory workshops, and spatial analysis to identify design strategies that align with local needs and cultural values. Findings demonstrate that a community house fosters social interaction, strengthens neighborhood identity, and provides a platform for participatory decision-making. The study highlights the architectural and social significance of such facilities and proposes design principles that can guide future urban upgrading strategies in informal settlements in Iran and beyond.