Co-Design and Co-Manufacturing: A Multidisciplinary Approach through Small-Scale Architectural Experiences in Barcelona.

This article aims to explore the potential and limitations of participatory design and co-manufacturing processes, taking the city of Barcelona as a reference. It is characterized by an aging building stock, tourist pressure, and difficulties for citizens in accessing affordable housing. In this sense, a selection of six cases of co-design and co-manufacturing is presented, as a range of small-scale interventions that were shared and discussed in the "Debate sessions. Co-Design and Co-Fabrication in Architecture" within the Co-Hab-Raval project, which motivated this research. Thanks to these case studies, it has been possible to analyse a wide range of intervention practices. The article exposes the socioeconomic context of Barcelona and its lack of affordable housing, which motivated the practices presented. In addition, the cases are carrying out a comparative analysis based on the parameters of agents involved, the type of users' participation, and materials resource management. Finally, the results obtained highlight the relationship between the construction systems and the self-construction and reuse strategies used, as well as the importance of the plurality of agents that intervened in the design process to enrich the proposals and empower users, especially in vulnerable environments. [ABSTRACT FROM AUTHOR]