Over the past quarter of a century, the wave of construction of “new villages” has profoundly changed the landscapes of the Ile-de-France region. After two decades of production of large collective housing estates, the single-family home has experienced strong development in response to the desire of households to own larger and more comfortable housing. Who were the customers of these new suburban spaces? What have been the effects of this supply of housing on the fringes of the city on the social development of the centre of the agglomeration? While executives and middle classes have settled in the best-served sectors, the Ile-de-France countryside has also welcomed more modest households leaving the neighbourhoods of large housing estates that are increasingly devalued. Through the constitution of these suburban suburban rings, it is therefore the evolution of a metropolis of more than 10 million inhabitants that we questioned. Maps and graphics reproduced in a CD-ROM highlight the increase in social polarization as well as mobility and help to shed light on the debates on the emerging city.