The average price per m² in Erdeven is 4 237 €/m² for an apartment, based on actual notarised (DVF) sales. About 10 transactions are recorded each year.
Mood illustration of Erdeven, a coastal municipality of the Morbihan between Carnac and the ria d'Étel.
In Erdeven, the benchmark price stands at 4 237 €/m² for an apartment. That level is the one of a Morbihan coastal municipality with a high share of second homes, where closeness to the beaches and the dunes governs value. These values come from the DVF database, which records the transactions actually registered before notaries, and not from asking prices in listings. They give an order of magnitude: in a municipality where the house is largely dominant, the gap is clear between a property close to the coast and a house in the village centre, a few kilometres from the shore.
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 Erdeven market follows the dynamic of the Morbihan coast, one of the most sought after on the Atlantic seaboard. Second-home demand, reinforced since the start of the decade, bears on a land supply tightly constrained by the Coastal Act and by the protection of the dune system. That scarcity explains a price level above that of Auray, although it is the main town of the sector, and close to that of the best-placed neighbouring coastal municipalities.
Over the longer term, two movements combine. Coastal protection and the growing regulation of tourist furnished lettings limit new supply and support the value of existing property. Conversely, taking account of coastline retreat and of the risk of marine flooding increasingly differentiates sectors according to their exposure, a criterion that buyers now factor into their assessment.
Erdeven sits in the upper middle of its sector: its prices exceed those of Belz and Auray, but remain well below Carnac, the neighbouring resort.
Erdeven stretches between the ria d'Étel and the bay of Quiberon, on a low coast edged by one of the largest dune systems in Brittany. The Erdeven dunes, protected and managed as a sensitive natural area, form a belt several kilometres long behind which the long Kerhillio beach opens out. This landscape of sand, heath and pines makes up the identity of the municipality and the first reason for its appeal.
The territory is also one of the great megalithic sites of the Morbihan. The Kerzerho alignments are among the most important groups of standing stones in Brittany after those of Carnac, with several hundred stones raised more than five thousand years ago. This concentration of megaliths, over a sector running from Carnac to the ria d'Étel, places Erdeven at the heart of one of the densest prehistoric landscapes in Europe.
The municipality long lived from farming, seaweed harvesting and inshore fishing, in a country where the Étel bar, feared by sailors at the mouth of the ria, recalls the difficulty of local navigation. Seaside tourism took over from the middle of the 20th century. Erdeven today has around four thousand permanent inhabitants, a population that multiplies sharply in summer, with its campsites, its seasonal shops and its beach access points.
According to INSEE, the French national statistics institute, Erdeven has around 4 008 permanent inhabitants. The market is dominated by second homes and by retirees settling in, two categories very present on the Morbihan coast. Buyers come mainly from Brittany, the Paris region and the wider west of France. Demand is mostly for the house with land, in a stock made up of traditional Breton houses and seaside builds of recent decades; the supply of apartments remains limited. Properties close to the beaches stand clearly apart from the rest of the market.
The benchmark price in Erdeven stands at 4 237 €/m² for an apartment. That figure comes from the DVF database, the sales actually signed before notaries. It is an average: a property a few minutes' walk from the dunes and a house in the village centre, several kilometres from the coast, depart markedly from this base, depending on floor area, condition and land.
The surroundings of the beaches and of the dune system, in particular towards Kerhillio, concentrate the highest values, carried by second-home demand. The village centre, with its shops, its schools and its year-round life, attracts permanent residents and offers more moderate prices. The inland hamlets, towards the ria d'Étel, offer more land at a more affordable level.
Auray is some fifteen kilometres away and has a station served by the links towards Rennes and Paris, which makes it the main rail access point of the sector. Lorient is about twenty kilometres to the west. The municipality nonetheless remains dependent on the car for most everyday journeys, a common situation on the Morbihan coast.
Seasonal letting is widely practised on this stretch of coast, with a season concentrated on the summer and shorter shoulder periods. Yield depends closely on the distance to the beaches, on capacity and on the level of fittings. Coastal municipalities under pressure are increasingly regulating tourist furnished lettings: checking the applicable rules at the town hall before any project is necessary.
The Coastal Act sharply restricts building near the shore, and the dune system is covered by environmental protections that make a large part of the seafront unbuildable. The risk of marine flooding and the change in the coastline are governed by prevention documents to be consulted before purchase. The presence of megalithic remains may also bring preventive archaeology requirements on certain projects.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).