In a psychoanalytical theoretical framework specifically elaborated in order to integrate the relations to socially produced objects (like the dwelling and to a certain extent some characterizations of the body proper) a general prnhlematlcs of the relations between the significations of the body and that of the dwelling is presented here. These significations refer correlatively to the (sexual and social) identity of the self and to the processes of the ego which constitute the appropriation-re-appropriation and identifications composition mechanisms of the self. From this point of view the importance of those two figurative supports of identity both spatializcd and their relations of reciprocal anaclisis is analysed more particularly with respect to the sex and the psychosocial history of the subject.