The competition consisted in developping an innovative urban project on an existing site with conversion of land into a residential area guaranteeing a high quality of life for future residents. The project "CityZen" is integrated by its form and its uses into the existing surroundings. The topography is conserved and valued, the vegetation created clings to the existing woodlands and forms an ecological continuity. The axes and views are oriented to benefit from the sun and the landscape. Three districts with different atmospheres were created: the district “des Jardins” (gardens) with urban agriculture, the district “du Parc” (park), which will house a school, and the district “des Sports” (sports), in tribute to the history of the site.