Through the implementation of this project we want to offer a space for meeting and discussion to people actively involved or planning to create autonomous spaces open to the public. We want to both give an audience to this type of project as involved in their territory, as a positive factor of local life and as elements to take into account when assessing the social impact of the actions of a geographical area and finally, as a form of resumption of power over civic life, both of those who are the initiative of these places and of those who attend them punctually. The Collective (Ideas, Place and Relate) shares a space and associative actions, in what is called a Third Place. This sociological concept aims to define a social space, outside the home and workspace, which allows people to become involved in civic life and develop a sense of belonging. For example, the Third Places can take the form of associative cafés, which at the same time accommodate work spaces, leisure activities, meeting places between parents .... The "common life" of the Third Place regularly raises issues of sharing political, economic and militant values but also of sharing space with different uses and the social impact of such actions on the territories. We wish to exchange with other European actors on these questions and to find an economic and social model adaptable to the contexts of the partner associations. We want to initiate a reflection on a European scale by: -giving concrete project management tools to invent innovative forms of Third Places organisation -creating a network of mutual support and solidarity between people and structures involved in the Third Places in Europe -concerning the notion of self-managed shared spaces as social actors of the territory - opening the debate on the question of the function of third places