This article investigates the role of residents as protagonists in participatory processes in architecture, focusing on their impact on the quality of social housing. Over the last ten years, research has examined emblematic cases such as the “Byker Wall” housing complex in Newcastle upon Tyne, UK, and the SAAL (Serviço de Apoio Ambulatório Local — Local Ambulatory Support Service) process in Portugal, both of which highlight the importance of participatory methods in promoting innovative and democratic approaches. Methods include a comparative analysis of these projects and their links to Latin American social housing initiatives, particularly the Uruguayan mutual aid cooperatives that were influential in São Paulo in the 1980s. Results show how participatory architecture can go beyond purely quantitative and productivist outcomes, offering experimental designs that balance architectural quality with social, economic, and environmental considerations. The study concludes by showing how participatory processes can offer a humanized approach to urban space, emphasizing the central role of residents in shaping housing as a democratic and inclusive endeavor.