In this issue of the interdisciplinary socio-anthropology review, Laurence Costes, a sociologist of the urban community, brought together nine articles dedicated to participatory habitat, which can be defined as a habitat type built by its occupants, whether alone or associated with a social lessor or developer, with a view to jointly carrying out not only a habitat project but also a life project. The rediscovery of this habitat type and its seemingly new character are concerned...