The Val Fourré is a large social housing project of 8,000 units in Mantes-la-Jolie, the west periphery of Paris, was completed in 1959 to accommodate workers of the automobile industry of the Seine valley. It followed the paradigm of cités idéales of Trente Glorieuses and the housing typology of grands ensembles that gained appeal after WWII as a response to housing shortage, rapid industrialisation and new living standards. Since 1991, Val-Fourré has been regarded asa notorious ghetto of bleak housing estates, poverty, violence, drug dealing, and street gang rivalry; an area that most French people would have no desire to go. The population of the Val Fourré was almost 25,000 inhabitants at the beginning of its construction.
On August 3, 1959, a decree of the Minister of Construction signed the birth certificate of the Val Fourré ZUP at Mantes-la-Jolie. The baby-boom, the development of industrial jobs in this part of the Val de Seine and the arrival of refugees from Algeria, has led to a strong demand for housing. The City of Mantes decided to continue its development towards the west in 1953. Raymond Lopez produced first plans for the urban planning, assisted by Henri Longepierre which continued the project after the death of Lopez in 1966.