"Is it buildable?" It is almost always the first question. It comes on site, by the side of the lane, while the buyer looks at the view and the seller answers in good faith: "Of course, my father wanted to build here."
Except the answer is not found in family memories, nor in the title deed. It is found in the municipality's Local Urban Plan, in the Natural Risk Prevention Plan and, sometimes, in a few easements nobody has looked at for thirty years. When these answers come too late, at the notary's office a few weeks after the preliminary contract, the sale can stop dead.
At the agency, we have been selling land in Martinique since 1985. Our conclusion is simple: land whose seller knows and shows its planning rules sells more smoothly, and at a fairer price. Here is how to prepare that file.
Why buyers need answers before the preliminary contract
Buying land means buying a project. Buyers do not only ask whether they like the place, but what they will be able to build and for what budget. In Martinique, several answers can change everything:
- the PLU zone: urban (U), to be urbanised (AU), agricultural (A) or natural (N);
- the PPRN: part of the plot may be unbuildable, or buildable only under conditions (landslide, flooding, marine submersion…);
- slope and access: a plot below the road, reached by a right of way, does not cost the same to build on as a flat plot along the road;
- sanitation: mains sewer connection, or individual sanitation to plan;
- on the coast, the "fifty geometric steps" zone.
Without this information, buyers do two things: they become wary, and they negotiate. With it, the discussion is about their project, not their doubts.
What a good planning file contains
No need for a hundred-page binder. A useful file fits in a few documents:
- the PLU zoning extract, with the exact name of the zone (UGm2, UH4, U3a… each municipality has its own naming);
- the zone's rules: maximum height, footprint, setbacks, parking, green space;
- the PPRN extract and the risk statement, mandatory for every sale in Martinique since the whole island is in seismic zone 5;
- the cadastral plan of the plot;
- known easements: rights of way, utility networks, surroundings of a listed monument;
- if you have one, a boundary survey by a surveyor.
These documents are public. You can gather them at the town hall, on the national urban planning portal, on pprn972.fr and on Géorisques (all in French). It takes patience: each site has its own logic, and PLU rules often run to more than a hundred pages for the few lines that concern you.
I created DocUrbanisme (in French) to save that time. From an address or a cadastral reference, it gathers within minutes, in a single PDF, the plot's zone, the rules that apply to it, the risks and the cadastral plan. A seller can then show the buyer, from the very first visit, what may be built.
The zone sets the price
It is often forgotten: for land, the price depends first on what you are allowed to build. Area and view come after.
Two plots we studied this year show it clearly.
The first, nearly 1,000 m² in the centre of the island, is in an urban zone. But it is a "flag" plot, below the road, with access still to be built. Its value remains around €100,000, provided the cost of the access and earthworks is explained from the start. Otherwise the buyer finds out alone, and renegotiates.
The second, on the north Caribbean coast, is much larger. But it is zoned natural, in a red PPRN zone, landlocked and very steep. On paper, it was a large plot with a view. In reality, its value was a few thousand euros.
Better to know this before setting a price than to learn it from the buyer. Land presented as buildable when it is not, or not entirely, means a negotiation lost in advance, and sometimes a dispute.
Situations that need more preparation
Family land held in joint ownership
This is very common here. All co-owners must agree on the price, and this is where a planning file helps: it brings everyone into agreement on what the land is really worth, with facts rather than memories. Good to know: in the French overseas territories, the law of 27 December 2018, known as the Letchimy law, allows heirs holding more than half of the rights to sell, before a notary, property from an estate opened more than ten years ago, until 31 December 2028 and under conditions (ANIL, in French). For the rest, see our guide to real estate inheritance in Martinique.
Agricultural land
It can be sold, but not as building land. Buyers must know they will not be free to build a house on it, and the SAFER (rural land agency) may be notified of the sale and, in some cases, exercise a pre-emption right. The price must reflect this from the start.
Selling part of your land
Detaching a lot to sell it is a subdivision under planning law: depending on the case, it requires a prior declaration or a development permit, and a surveyor. It is best to settle this step before looking for a buyer, because what you will sell is the subdivided lot, with its own rules.
Seafront land
Check the limit of the "fifty geometric steps" zone and how the Coastal Law applies. These are often the first questions from buyers coming from mainland France.
When should you prepare this file?
Ideally before setting the price, and at the latest before the first viewings. For three reasons:
- you set a price consistent with what is actually buildable;
- you answer the buyer's questions straight away, which builds trust;
- you avoid a signed preliminary contract falling through a few weeks later, when the notary receives the planning information.
If you want to go further, an operational planning certificate (CUb), requested from the town hall, confirms the feasibility of a specific project and freezes the rules for 18 months (service-public.fr, in French). For a hesitant buyer, it is a very strong argument.
Frequently asked questions
Is the seller required to provide a planning file?
Not in this form. The risk statement, however, is mandatory and must be handed over at the first visit. The rest is about informing the buyer properly: it is optional, but it is often what makes the difference.
Who commissions the boundary survey?
There is no single rule, but it is usually the seller, since the survey secures the area being sold. For building land, the deed must in fact state whether the advertised area results from a boundary survey.
My land is in an N zone: can I still sell it?
Yes, of course. You simply need to present it for what it is (garden, orchard, natural space, an extension to a neighbouring property) and price it accordingly. A neighbour is often the best buyer.
In short
Well-presented land is land whose rules are known. Gathering the zone, the rules and the risks before putting it on the market lets you set the right price, reassure the buyer and sign with peace of mind.
Thinking of selling land in Martinique? Cabinet Laurent Valère has been helping owners since 1985 to find the right buyer, at the right price. Let's talk about your project.
Also read: Everything you need to know about zoning and the PLU in Martinique.
Sources
- Géoportail de l'Urbanisme
- PPRN de la Martinique
- Géorisques
- Service-public.fr — Planning certificate
- Service-public.fr — Risk statement
- ANIL — Exiting inherited joint ownership overseas
- Cabinet Laurent Valère — files studied in 2026