Erasmus+ CityLab Program at Universidad de Belgrano School of Architecture and Urban Planning, has focused on urban structure as generator of dynamic and transformable spaces, through a local case located at Juan B. Justo Avenue corridor, Buenos Aires, Argentina. The CityLab project motivated students to experience an integrative 3-year Problem-Based Learning process, related to Morphology Communication and Digital Media, Urban and Territorial Planning, Final Degree Project, as well as integration with School of Public Relations. More than 75 students participated in this international programme to explore, diagnose and re-think city scale, as well as to discover, build and apply technological tools. Land use and mobility regulations were introduced with the participation of stakeholders and external experts in different stages from diagnosis to final project validation. Students' and teachers' staff contribution to the academic final conference "PBL for Sustainable Cities"- September 2018, Bogotá, produced a motivating socialization in collaboration with local partners.