As a result of the professionalisation of the armies, which led the Ministry of Defence to dispose of a large part of its real estate located in the city centre, the City of Châlons-en-Champagne has seen its urban wasteland increase sharply in recent years. In this context, the development of this heritage is a major issue in the development of the city due to its large size and its location adjacent to the heart of the city. It is in this context that a land winback policy has been initiated, which forms part of the project for the development of the Chanzy Forgeot district. To do so, the revitalisation of the land, then in wasteland, was necessary.