The average price per m² in La Trinité-sur-Mer is 6 256 €/m² for an apartment, based on actual notarised (DVF) sales. About 18 transactions are recorded each year.
Mood illustration of La Trinité-sur-Mer, on the coast, in the Morbihan.
The average price of homes in La Trinité-sur-Mer stands at 6 256 €/m², according to the DVF transactions actually registered before notaries. That average covers a stock dominated by the detached house, from the villas and longères of the heights to the village houses near the port, completed by a minority of apartments in blocks. The view over the rivière de Crac'h or over the marina, the closeness of the quays, the aspect and the condition of the property make values vary sharply. The municipal territory does not exceed a little more than six square kilometres, on the edge of an estuary, which leaves little land available.
Prices from the DVF file (Demandes de valeurs foncières, published by the DGFiP), transactions actually recorded at the notary at municipality level. Cross-referenced with the Notaires de France - INSEE indices. Learn more about our methodology.
The market of La Trinité-sur-Mer is a small coastal market, with in the order of twenty sales a year recorded in the DVF data over the recent period. That low turnover owes to the size of the municipality, barely more than six square kilometres, and to the overwhelming share of second homes, which change hands less often than homes lived in year-round. New supply remains marginal: available land is scarce on the edge of the estuary, and operations are essentially limited to resales of existing properties.
Several drivers keep this price level up. Its status as a major marina in Brittany, the sailing reputation tied to the regattas and to the great figures of the sport, and the closeness of Carnac, of its megalithic alignments and of the golfe du Morbihan feed a lasting demand for second homes, partly Parisian and foreign. As across the Morbihan coast, the slowdown in sales volume seen over the past few years has not pushed values back, held up by the scarcity of supply and by the seaside appeal of the municipality.
La Trinité-sur-Mer stands among the most expensive municipalities of the baie de Quiberon, at the level of its neighbour Carnac and above resorts such as Quiberon. It clearly exceeds the inland towns of the Morbihan, such as Auray.
La Trinité-sur-Mer has existed as a municipality only since 1864, when the village broke away from the parish of Carnac. It previously bore the Breton name of Locqueltas. Its present name comes from the chapel of the Sainte-Trinité, which in 1682 replaced an earlier chapel of Saint-Gildas. Traces of the village and its port are found as early as the 13th century, around a salt-making activity that mattered for several centuries, then a maritime trade that gave life to the quays.
The pont de Kerisper, crossing the rivière de Crac'h, was built between 1899 and 1901. Destroyed in 1944, it was rebuilt as an arch between 1956 and 1958. In 1931 a protectionist measure in favour of the Charbonnages de France put an end to local maritime trade, and the village turned to fishing before seeing, over the course of the 20th century, its fishing port gradually give way to one of the main marinas of Brittany.
The municipality has established itself as a centre of French sailing. It was the home port of Éric Tabarly (1931-1998) and of his Pen Duick boats, and each spring it hosts the Spi Ouest-France, a regatta that brings together several hundred boats over the Easter weekend. Its sheltered estuary, on the rivière de Crac'h, holds many oyster beds and an oyster-farming activity that is still present. The territory also has several listed megalithic sites, including the alignments of Petit-Ménec and the dolmens of Mané-Kervilor, in the continuation of those of neighbouring Carnac.
La Trinité-sur-Mer has 1 845 inhabitants at the 2023 census. According to INSEE, the French national statistics institute, the municipality counts around 2 837 dwellings, of which only 34 % are main residences and close to 66 % second homes: the population actually present varies sharply between winter and the summer high season. Again according to INSEE, houses account for around 75 % of main residences, and close to 73 % of their occupants own them. Buyers split between families and working people of the baie de Quiberon, retired people settled year-round, and second-home buyers, often Parisian or foreign, drawn by sailing and by the closeness of Carnac and the golfe du Morbihan.
The average price in La Trinité-sur-Mer is 6 256 €/m², according to the DVF transactions actually completed before notaries. That average covers wide gaps depending on the view over the rivière de Crac'h or the port, the distance to the quays, the presence of a garden, the aspect and the condition of the property. A house close to the marina and a home in the sectors further back do not trade at the same level.
The municipality is a leading marina in Brittany and a sought-after seaside destination, in a territory of six square kilometres where land is scarce. The very high share of second homes, close to two dwellings in three, keeps demand strong from Parisian and foreign buyers. That combination of scarcity and appeal holds values above the average for the Morbihan.
The municipality lies on the south coast of the Morbihan, a few kilometres from Carnac and some ten kilometres from Auray, whose TGV station links Paris in about three hours. The RN165 dual carriageway, the Nantes-Quimper road, serves the area, with access via Auray. The airport of Lorient Bretagne Sud is around thirty kilometres away.
The market is very largely made up of houses: according to INSEE, around 75 % of main residences are detached houses, from the villas of the heights to the village houses. Apartments, in the minority, are found mainly in blocks, sometimes with a view over the port or the river. The choice depends on the plan, but the supply of houses remains limited by the scarcity of municipal land.
The market stays narrow because of the small size of the municipality, with in the order of twenty sales a year in the DVF data. As in many coastal municipalities, transaction volume has slowed over the past few years, while demand for second homes remains present. That scarcity of properties for sale supports prices but sometimes lengthens the time needed to find the property sought.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).