The La Défense district is located at the gateway to Paris, once you cross the Neuilly bridge, to the west of the capital, in the Hauts-de-Seine department. The four communes that share the district all have a particularity: Puteaux and its Eco Quartier des Bergères, Courbevoie and its student residences, Nanterre and its Paris La Défense Arena and La Garenne-Colombes with its Groues district. The reputation of La Défense has contributed to the development of these towns under the leadership of Defacto, the Public establishment for the management of the La Défense business district.