This paper describes “Reinventing Martesana District,” a research and teaching project that involves different actors: Polimi Desis Lab, a furniture company Cargo, the students of the School of Design at Politecnico di Milano and six local communities of the Martesana neighbourhood. Polimi Desis Lab is a research team of the Department of Design at Politecnico di Milano, part of the International Network of Design for Social Innovation and Sustainability that adopts a strategic and systemic approach to design, with a focus on space and service design, in specific contexts, also involving local communities. Cargo, a famous furniture store located in the north-east of Milan, focused on the concept of tradition, innovation, and creativity, ask...