Practice-based approaches from the professional fields of public art and urbanism augmented the academic debate. The Lisbon council’s experience was a particularly relevant contribution for the clarification of the difficulties and opportunities associated with the institutional practice. Several participants emphasized the incompatibilities that may arise when graffiti and street art are developed in an institutionalized manner. It was argued that these forms of urban creativity have a valuable capacity for resilience in adapting both to attempts to institutionalize, and attempts to oppose, these forms of practice.