As part of the Festa d’Arquitectura programme, this urbanism workshop invites participants to engage directly with the city as a space of collective construction. The activity focuses on participatory approaches to urban design, encouraging critical reflection on public space and its transformations. Through guided exercises and discussions, the workshop addresses contemporary challenges related to density, accessibility and social use. It positions architecture as a tool for mediation between institutions and citizens. The format promotes an active and situated understanding of urban processes.