| Concept | Meaning |
| Forest | Refers to unequipped land, which constitutes natural environments that should be protected because of the quality of their landscapes, in particular from an ecological point of view. |
| Afforestation zone | Refers to an area made up of green spaces and afforestation that should be protected and which can be developed to become a garden or an urban park. |
| Zone to protect | Refers to a site made up of natural spaces that should be protected because of the quality of the landscapes and the character of the natural elements that compose them. In this area, all construction is prohibited. |
| Rural Green Zone | It’s an open and unbuilt area. It plays a main role in the balance between the objectives of protection and the development of the municipal territory. |
| Urban Green Zone | It’s an open and unbuilt space in the municipality territory. It contributes in particular to reducing the risk of flooding. |
| Littoral Protection Zone | It is an area with an absolute protection. No construction or fixed or removable installation is authorized in this area. Only work of reinforcement and rehabilitation inside the existing buildings are authorized |