Country Guide

Private Islands and Motu of French Polynesia

French Polynesia is the most photographed island territory on earth, and one of the hardest in which to buy an island. Roughly 118 islands and atolls span five archipelagoes, yet the genuine market at any moment is a handful of properties, most of them motu, the low reef islets that ring an atoll or stud a high island's barrier reef. This is a plain orientation to what a motu is, how French law treats a foreign buyer here, and what the weather, the water and the distance ask of an owner.

What a motu actually is

The word covers a precise landform. A motu is an islet of coral sand and storm-thrown rubble that has accumulated on the rim of a reef, a few metres above the sea at its highest, with no rock core beneath it. On an atoll, the motu are the beads on the ring: the volcanic island that once stood in the centre has long since subsided, leaving a lagoon enclosed by reef, and the motu are the only dry land the atoll has. The Tuamotu chain, the largest field of atolls in the world, is made of nothing else. Motu also form on the barrier reefs of the high islands, which is why Bora Bora's lagoon is edged with them.

A high island is the other thing entirely: a volcanic island with elevation, soil, streams and shade, Tahiti, Moorea, Raiatea, Taha'a, Bora Bora among them. Almost everything that matters in ownership follows from this distinction. A motu has no river, a thin and easily exhausted freshwater lens, little soil beyond what the coconut and pandanus have built, and no ground higher than a storm swell can reach. What it offers instead is a private ring of sand between a lagoon and the open Pacific.

A market of very few islands

The honest inventory here is tiny, and a buyer should begin by accepting that. Most motu are family land, held in indivision, the undivided co-ownership that Polynesian successions produce across generations, and family land is very rarely sold. Much of what looks available is in fact leased, to copra growers, to pearl farms, to the resorts, whose overwater icons mostly stand on land the operators do not own. What genuinely comes to market in a given year is a short list: a lagoon motu in the Society Islands, such as Motu Moie on Taha'a's barrier reef or Motu Tane in the lagoon of Bora Bora, and, very occasionally, an entire private atoll in the Tuamotus, of which Nukutepipi, profiled in our registry, is the defining modern example.

Scarcity of this order changes the search: there is no depth of comparable stock, and the best properties often change hands quietly. Our islands-for-sale pages carry what is openly marketed; the wider regional context, and how this market compares with Fiji or the Cooks, is set out in our South Pacific overview.

French law, with a Polynesian layer

French Polynesia is an overseas collectivity of France, an autonomous pays d'outre-mer that writes much of its own law, including most of its land and tax law, while remaining inside the French legal order. The practical consequences are familiar and mostly reassuring: civil-law title, a public land register, transactions led by a notaire whose deed is what actually conveys the property, and a currency, the CFP franc, pegged to the euro. Property here is bought the French way, deliberately and on paper.

The layer that demands care is the treatment of outside buyers, because the territory controls this itself and has changed the rules more than once. For many years transfers to buyers from outside French Polynesia required prior authorisation from the local government, a regime that in practice bore on non-French and non-European purchasers while metropolitan French buyers dealt as locals. Reforms since 2019 have added further instruments to keep land in Polynesian hands: a prior-declaration mechanism letting the territory step in and acquire a property itself within a set window, and, more recently, steep surcharges on transfer duties for buyers without long local residence, measures enacted, challenged before the French courts and revised. We will not summarise a moving target more precisely than that, and neither should anyone selling to you.

The document that matters is not the listing but the notaire's answer to one question: what, this year, does the territory require of a buyer like you?

The discipline is therefore simple. Before an offer, have a Papeete notaire state in writing which authorisations, declarations and duties apply to your nationality, your residence and your holding structure on the day you intend to sign, and price the answer into the deal. A corporate or trust structure does not slip these rules: transfers of company interests holding Polynesian land are within their reach, and recent measures have treated indirect purchases more severely, not less.

Where your title ends: the lagoon shore

In French Polynesia the public maritime domain belongs to the territory itself, not to the French state, and it is inalienable. It takes in the shore below the highest tides, the lagoon floor and the reefs. A motu title therefore ends at the shoreline: the dry sand above the tide line can be yours, the wet beach, the reef flat and every square metre of that famous lagoon cannot. The Antilles-style coastal strip known as the cinquante pas géométriques, fifty geometric paces reserved from the shore, survives here in the Marquesas specifically; elsewhere the domanial boundary is the tide line, and where exactly it runs on a low, mobile islet is a matter for survey, the land-affairs administration and the notaire, not for assumption.

Everything built past that line, a jetty, a pontoon, a boathouse, any overwater room, stands on public domain and exists only by an authorisation or concession from the territory: personal, fee-bearing and revocable. When you buy a developed motu, confirm that its water-side works are authorised at all and whether the consent passes to a new owner or must be sought afresh.

Cyclones, by archipelago

French Polynesia sits east of the South Pacific's main cyclone track, and most seasons pass without a named storm. The risk is real but clustered in strong El Niño episodes, which drag the warm water and the storms eastward. The 1982–83 season sent a series of cyclones across the Tuamotus, and Cyclone Oli in 2010 struck the Society and Austral groups. On a motu standing a few metres above the lagoon, the existential threat is not wind but water, storm surge and long-period swell that can sweep across an islet entirely, which is why any building brief here starts with elevation and anchorage rather than architecture.

Papeete, and the distance beyond it

Every route runs through Papeete. International flights land at Faa'a on Tahiti; Air Tahiti's domestic network then fans out to several dozen islands and atoll airstrips, and inter-island cargo ships, the successors of the old trading schooners, work scheduled rotations through the archipelagoes. An owner should price this geography honestly. A Taha'a or Bora Bora motu sits within a short hop and a boat transfer of the international gateway; a private Tuamotu atoll may depend on its own airstrip and on a freighter calling at intervals, and every bag of cement, spare part and drum of diesel arrives by barge at a cost that multiplies with distance. Construction on an atoll is a logistics exercise first, and our note on building on a private island applies here with the volume turned up.

Water and power on a motu

No utility will ever run a pipe or a cable to a motu; the property must make everything it uses. Rain catchment from roofs into cisterns is the traditional supply and remains the backbone; the ground itself holds only a thin lens of fresh water floating on salt, easily over-drawn and quickly brackish, so wells are a supplement, not a plan. Developed motu now typically pair generous rainwater storage with a small desalination plant, and solar with battery storage has displaced the diesel generator as the primary power source, with diesel held in reserve. The full engineering choices, and the maintenance burden each one carries, are set out in our guide to fresh water on a private island.

A motu has no river, no high ground and no utility connection. What it offers instead is the one thing the brochures cannot exaggerate.

What the market asks

We will not print figures that would be stale within a season, and in a market this thin, averages mislead. Public marketing in recent years has run from single-digit millions of US dollars for remote or lightly built motu to several tens of millions for developed properties in the Bora Bora and Taha'a lagoons and for private atolls, with the spread driven less by acreage than by three things: proximity to Papeete and a runway, the completeness and permitting of what is built, and the cleanliness of the title. Treat any asking price as an opening position, and any figure not anchored to a notaire's file as decoration.

A closing orientation

French Polynesia rewards a particular kind of buyer: patient, advised, and content to hold a rare thing under rules written to keep it rare. Understand the landform first, because a motu's limits are physical before they are legal. Accept the thinness of the inventory and search accordingly. Have a Papeete notaire state the current buyer regime before you form an attachment, establish exactly where the public domain begins on the shore you are admiring, and cost the logistics, the water and the storm case as capital items, not contingencies. Done in that order, a purchase here is as sound as anywhere in the Pacific, and the asset is one whose scarcity the law itself guarantees.

If you hold a motu or an atoll and are considering a discreet sale, you can register an island with our office. If you are searching, a search mandate puts our registry, and the quiet market behind it, to work on your brief.

General orientation, not legal or tax advice. Confirm the current rules with a notaire in Papeete before committing. Enquiries through our contact page.