This article presents a case study aimed at identifying the success factors and the effects of a collaboration between architecture students and an Indigenous community. This exercise, which is part of a multi‐year collaborative relationship, was carried out within the framework of an urban design workshop led by the School of Architecture of Laval University and the Innu community of Uashat mak Mani‐utenam, which is close to the city of Sept‐Îles, Quebec. The expansion of the community and the development of residential areas were at the heart of this collaborative effort. The analysis of the evolution of the different versions of the development plans, in the light of Innu development criteria, highlights the positive contributions of the workshop, particularly with regard to the community program and the tectonic symbolism. Nevertheless, the maintenance of the status quo is noted with respect to the location and respect for natural elements. Testimonials from key players involved in the project illustrate the authentic nature of the partnership between the research group "Habitats and Cultures" and the community. The quality of the relationship between the researchers and the Innu partners, the duration of the partnership over time, and the promotion of Innu cultural knowledge have favoured the success of the partnership. Messages clés: L'École d'architecture de l'Université Laval a mené des activités participatives de design urbain avec la communauté innue de Uashat mak Mani‐utenam sur le thème de l'agrandissement et du réaménagement de la réserve.La comparaison du plan d'aménagement initial, du plan d'aménagement proposé par l'atelier et du plan d'aménagement définitif met au jour les effets de l'activité participative sur la configuration d'un nouveau secteur résidentiel.Les témoignages des acteurs impliqués révèlent les représentations généralement positives du partenariat de recherche et de ses retombées. [ABSTRACT FROM AUTHOR]