Many European countries are experiencing a recent (re)emergence of collaborative housing, such as co-housing, housing co-operatives and other forms of collective self-organised housing. One of the less studied aspects of these housing forms is the relationship between users (i.e. residents) and institutional actors and, in particular, established housing providers. This paper proposes a conceptual framework that helps expand the knowledge on the nature of these collaboration practices. To this end, different concepts and theories are reviewed, with a focus on collaboration and co-production as useful constructs to understand these phenomena. The proposed framework is applied to two examples of collaboration for housing co-production between residents' groups and established housing providers in Vienna and Lyon, respectively. We found a high degree of user involvement throughout each project. In both cases, the group of residents that initiated the project partneredup with established housing providers, who facilitated access to key resources and professional expertise. We hypothesise that housing providers with an ethos akin to initiators' values will more likely become (and stay) involved in collaborative housing, as compared to mainstream providers. We conclude with a reflection on possible improvements to our analytical framework and directions for further research.