The real estate market is not limited to the construction and transactions of apartments or houses. Non-buildable land represents an essential, often overlooked, part of this sector. Its regulation is complex and varies according to many criteria such as zoning, easements, and environmental protection.
These lands can offer unprecedented opportunities for investors and owners, despite their constraints. Used for agriculture, leisure, or the preservation of biodiversity, they require a nuanced understanding of the laws in force and the possibilities for development.
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What is non-buildable land?
A non-buildable land is a plot of land that cannot support new construction due to its use or location. Several regulatory criteria define this non-buildability, including public utility easements (SUP), risk prevention plans (PPR), and various local legislations such as the municipal map.
The main documents governing non-buildable land
- Public Utility Easements (SUP): these easements affect land use. They may include restrictions such as risk prevention plans.
- Risk Prevention Plan (PPR): this document delineates buildable areas, conditionally buildable areas, and non-buildable areas.
- Municipal Map: it delineates the buildable and non-buildable sectors of the territory.
- Expropriation Code: it determines the buildable sectors for the setting of compensation in case of expropriation.
- Coastal Law: this law prohibits new constructions on a coastal strip of 100 meters outside urbanized areas.
- National Urban Planning Regulations (RNU): it applies to municipalities without urban planning documents and prohibits new constructions outside currently urbanized areas (PAU).
Special case: non-buildable land with a registered shed
A special case is that of non-buildable land with a registered shed. This type of land may contain existing constructions, often outbuildings or garden sheds, that are registered in the land registry. However, these constructions do not make the land buildable for new homes or buildings. Their existence may, however, offer certain possibilities for use or enhancement. 
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Possibilities for exploitation and enhancement of non-buildable land
Despite the restrictions, a non-buildable land offers several options for exploitation and enhancement. These lands can serve specific uses that do not require new constructions, while complying with the regulations in force.
Agricultural and forestry uses
The agricultural zones (zones A) and natural and forestry zones (zones N) are typical examples. In these zones, agricultural, forestry, or pastoral exploitation is favored. These lands can accommodate crops, grazing, or reforestation, thus contributing to the preservation of landscapes and biodiversity.
Protected areas
Some plots are located in environmental protection zones or heritage protection zones. The first type requires that any activity respects the local ecosystem, while the second aims to preserve historical monuments or archaeological sites. These lands can be enhanced through eco-tourism activities, such as hiking trails or educational spaces about wildlife and flora.
Flood-prone areas
Flood-prone areas limit constructions for safety reasons. These lands can still be used for recreational or outdoor activities, such as parks, bike paths, or picnic areas, provided they comply with safety and risk management constraints.
Economic advantages
The enhancement of these lands can also involve land valuation projects, such as renting for seasonal activities or ecological compensation projects. These initiatives allow for generating income while respecting urban planning and environmental protection rules.
These various possibilities show that, despite regulatory constraints, non-buildable lands can be exploited in a profitable and sustainable manner.