The article explores a different itinerary to rethink the domestic space, outside the typological classifications and the discourses derived from them. Starting from some utopian architectures, art installations and constructed works, other approaches are presented for the research of the space and living. The study of the space of the house and of the collective housing is proposed from three aspects: the protocols of organisation of the floors, the negotiation of the intermediate spaces and the relationship of the domestic spaces to the environmental natures and the cultural areas.