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What are the legal specifics of a real estate purchase in the French overseas territories?

Guide led by Arthur Merlino, founder of BRIVEOReviewed by the Briveo teamUpdated on July 7, 2026

A real estate purchase in the overseas territories follows the general law (preliminary agreement, notary, land registration), with local particularities: long-standing succession co-ownership made easier to exit by the law of December 27, 2018, property titling still incomplete in Mayotte and French Guiana, and the fifty geometric paces zone on the Antillean coast.

A base of general law, with local adaptations

In the overseas departments and regions, a real estate purchase follows the general law: a preliminary contract, an authenticated deed received by a notary, land registration with the land registration service, guarantees and inspections identical to mainland France. The principle of legislative identity in Article 73 of the French Constitution makes national law applicable there as of right, with possible adaptations.

In the collectivities governed by Article 74 of the French Constitution and in New Caledonia, the principle of legislative specialty applies: some national texts are applicable there only by express mention, and specific local rules exist, notably in land and tax matters. Before any project in the Pacific, take stock with a locally established notary.

Succession co-ownership: the major Antillean issue

In the Antilles, French Guiana and Réunion, many properties have been held in co-ownership (indivision) for several generations, for want of settling the estates. The result: properties that are legally blocked, sometimes vacant or degraded, and sales impossible without the agreement of very many co-owners, since the general law in principle requires unanimity to sell (Articles 815 and following of the French Civil Code).

To unblock these situations, Law No. 2018-1244 of December 27, 2018, known as the Letchimy law, created a derogatory and temporary scheme in the overseas territories it lists: for estates opened more than ten years ago, co-owners holding at least two-thirds of the undivided rights may sell or divide the property, following a framed procedure involving notification to the other co-owners and a possibility of opposition before the judge. Protections set the scheme aside where a co-owner is a minor or a protected adult. This regime is time-limited (deadline set by law at December 31, 2028, subject to extension or amendment): check its applicability on the day of your operation.

On the buyer's side, vigilance is required: demand a clear thirty-year chain of title and, where there is co-ownership, make sure the procedure followed (unanimity, judicial authorization or derogatory scheme) is proper. Using a genealogist is sometimes necessary to identify all the rightful claimants.

Property titling in Mayotte and French Guiana

In Mayotte and French Guiana, a significant share of land occupations rests on no published property title: customary or historical occupations, an incomplete land registry, unsettled estates. The State has launched a process known as titling (titrement), intended to grant titles to legitimate occupants. Law No. 2017-256 of February 28, 2017, a programming law on real equality in the overseas territories, notably established dedicated mechanisms, including a land emergency commission in Mayotte.

In French Guiana, most of the land belongs to the State domain, which strongly frames transfers and regularizations. In practice, for a buyer: never sign on the basis of a mere possession or a private deed; demand a published property title and have the entire chain of title checked by the notary.

The fifty geometric paces zone along the coast

In the Antilles, the coastal strip known as the fifty geometric paces (about 81.20 meters from the shore) in principle belongs to the State's maritime public domain. Many buildings have been erected there without title. Law No. 96-1241 of December 30, 1996 organized the regularization of certain occupants and the management of these areas, notably through dedicated agencies in Guadeloupe and Martinique.

A property located in this zone can be validly sold as private property only if the land has been duly declassified and transferred by the State. Before buying by the sea in the Antilles, have the notary check the exact situation of the land in relation to this zone.

Land registration and essential checks

Land registration works in the DROM as in mainland France, with one caveat: Mayotte historically falls under a specific land registration regime and its land registry is still being made reliable. In the Pacific, New Caledonia also has customary lands that are inalienable, non-transferable, non-exchangeable and non-seizable (Article 18 of Organic Law No. 99-209 of March 19, 1999), which cannot be sold.

Before any commitment, have the notary gather the following items:

  • A published property title and a thirty-year chain of title.
  • A recent mortgage status (registrations, seizures, easements).
  • The land registry situation and boundary marking, especially in poorly or badly registered areas.
  • The statement of risks (Article L. 125-5 of the French Environmental Code): cyclone, earthquake, marine flooding, ground movement, coastline retreat.
  • The planning situation: local urban plan, fifty geometric paces zone, protected coastal areas.

Frequently asked questions

What is titling in the overseas territories?

Titling (titrement) is the process by which the State grants property titles to the legitimate occupants of land held without a published title, mainly in Mayotte and French Guiana. It rests on mechanisms established by the law of February 28, 2017 on real equality in the overseas territories. As long as a property is not titled, buying it is legally very risky.

Can you sell a co-owned property in the overseas territories without the agreement of all co-owners?

Yes, on a derogatory and temporary basis. Law No. 2018-1244 of December 27, 2018 allows, for estates opened more than ten years ago in the territories it covers, co-owners holding at least two-thirds of the rights to sell or divide, after notifying the others and under the judge's control in the event of opposition. Check that this regime is still in force on the day of the operation.

Can you buy customary land in New Caledonia?

No. Customary lands are inalienable, non-transferable, non-exchangeable and non-seizable under Article 18 of the Organic Law of March 19, 1999. They can neither be sold nor seized. Only specific use mechanisms may exist, to be examined with a local notary.

Which documents should you require before signing a preliminary agreement in the overseas territories?

At a minimum: the published property title with a thirty-year chain of title, a recent mortgage status, the statement of risks provided for in Article L. 125-5 of the French Environmental Code and the land's situation in relation to the land registry and, in the Antilles, the fifty geometric paces zone. Where there is co-ownership, require proof of the proper consent of the co-owners.

Read next

Sources
  • Code civil, articles 815 et suivants (Legifrance)
  • Loi n° 2018-1244 du 27 décembre 2018 visant à faciliter la sortie de l'indivision successorale et à relancer la politique du logement en outre-mer (Legifrance)
  • Loi n° 2017-256 du 28 février 2017 de programmation relative à l'égalité réelle outre-mer (Legifrance)
  • Loi n° 96-1241 du 30 décembre 1996 relative à la zone dite des cinquante pas géométriques dans les départements d'outre-mer (Legifrance)
  • Loi organique n° 99-209 du 19 mars 1999 relative à la Nouvelle-Calédonie, article 18 (Legifrance)
  • Constitution du 4 octobre 1958, articles 73 et 74 (Legifrance)
  • Code de l'environnement, article L. 125-5 (Legifrance)
  • ANIL (anil.org) : achat d'un logement, indivision et informations juridiques logement
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Buying in the overseas territories: legal specifics - Briveo