In public opinion and in several research projects, single-family detached housing has often been associated with forms of advanced individualism on the outskirts of major urban centres. Drawing on a case study in Seine-et-Marne, this article seeks to show the emergence of a sense of “us” among young people in these housing areas, based on converging residential trajectories and multiple territorial affiliations. This “us” is developed around the shared experience of fragile upward social mobility in accessing single-family detached housing and moving away from the working-class urban neighbourhoods with which they share elements of culture and family. This sense of identity also provides cultural capital that means suburban single-family residential areas provide confidence and reassurance, which allows young people to navigate between different social worlds.