This international planning studio was coordinated by Catalina Ortiz of the Universidad Nacional de Colombia and joined students from the Universidad Nacional de Colombia, Columbia University New York, and our masters students from the Universitat Internacional de Catalunya, with the objective of proposing models for alternative intervention in the urban fringe involving community actors as crucial planning partners. The proposal addressed the implementation of current planning projects in Medellin, Colombia, specifically the Green Metropolitan Belt proposal, where neighborhoods located along the informal settlements of Medellín’s growing periphery claim their right to be recognized and involved in the city’s planning processes. Our group worked closely with the neighborhood of Comuna 8.