In this investigation we explore the concept of difference as city’s interpretational paradigm, in order to understand the changes of multicultural contexts. Difference is read as a moment of transition and change among points of view, in their mutual relation. We study ongoing dynamics in the relationship between public and private space, and especially in intermediate spaces generated by the simultaneous presence of differences. The presence of migrant communities that cohabit in the same place enhance the continuous regeneration of different space interpretations. The on-field investigation, brought on through the comparison among three different multicultural realities (Sassari, Dakar, Aubervilliers, in Paris outskirts), made the presence of mutable spaces emerge, being defined by unpredictable relationships. This way it is possible to identify dense places, special spaces of change, by following the traces of urban space appropriation forms. The on-field investigation has moreover emphasized the conflicting role, which expresses itself through the relationships built up among the present dualities. This study intends to reconsider the conflict as a necessary tool towards urban regeneration and production of new differences
