The land available for housing by type of owner corresponds to all the vacant land within the residential areas and to 75% of vacant land within the mixed-used areas in the municipalities' general land use plans (PAG) (in hectares). The type of owners are on the one hand private owners (individuals, legal entities, co-ownerships) and on the other hand public actors (municipalities, State, Funds, SNHBM). This is a theoretical potential, independently of the will of the owners to develop the land. The data sources are the digitalized cadastral parcels, the orthophoto-images and the type of owner from the "Administration du Cadastre et de la Topographie", as well as the PAG and PAP of the municipalities digitalized in collaboration with the Ministry of Interior.