for example the plu for the commune of saintnazaire attaches a great importance to the protection of natural areas the location of production zones and risks in the estuary as the attractiveness of the sea shore is quite important the plu imposes restrictive rules related on construction in the coastal zone and tries to relocate new development two or three kilometres inland involving communes around the city of nantes it will establish the main directions for the broader project of territorial development to the year they are also trying to encourage increased participation in the process by publicprivate development companies societes publiques d amenagement and private investors to manage land use and local land acquisition operations beyond the limited number of public programs