This study investigates the representation of transnational space in which immigrants and national people in EU coexist together understanding the functional limitation of the physical border that divides spatial territory in EU nations. To specify, the study tries to observe the equalized residential conditions that is existed common value of our lives not related to nationality, races, ethnics. In Italian case, even though the number of immigration is increasing more and more, immigrants in Italy don``t have civic right enough as italians do, In addition, the housing condition of immigrants is discriminative. Through the the case of housing discrimination of the italian immigrants, the study tries to research the way to unify the immigrants in the italian society and further more, to find out an alternative for social unification of the EU immigrants.