Buying a mill for sale in Landes (40) takes patience: the pine forest that covers most of the department has long limited the number of watermills, for lack of any real drop in elevation. The few mills found here sit on the Adour, the Midouze, the Gabas or the outflow streams linking the coastal lakes to the ocean, such as the Huchet or Contis currents. On this page, ma-propriete.fr brings together the mills for sale in Landes: former watermills on rivers or coastal streams, converted village flour mills and millers' houses with their outbuildings.
You will also find price benchmarks based on actual sales, an overview of the areas where these properties still exist, and the points to check before buying a mill on sandy, damp ground. To prepare your project, read our guide to buying a country house in France, whose advice on old buildings, outbuildings and financing applies fully to a Landes mill.
There are no official statistics dedicated to mills: sales are too rare and too varied (a ruin to restore, a habitable mill, a flour mill with a turbine). The most reliable market benchmark remains the price of country houses, which a habitable mill resembles, with a premium for the water, the character and the water rights, and a discount for the work required.
How much does a country house cost in Landes (40)? According to DVF data (notarised sales) analysed by the ma-propriete.fr observatory, the median price of a country house in Landes (40) stood at €236,758 in 2025, with an average price of €253,532 and a median price of €2,250/m² of living space (2,208 house sales in rural municipalities over the year). The price range is wide: 10% of houses sold for less than €136,874 (floor price, 1st decile) and 10% for more than €400,000 (ceiling price, 9th decile). The typical country house here offers 111 m² of living space on an average plot of 3,628 m², i.e. around 0.4 ha.
This market is well above the regional median (Nouvelle-Aquitaine: €170,000) and well above the national median (€189,200). Since the second half of 2020, the median price has risen from €200,000 to €236,670, i.e. +18.3%; over one year (2024-2025) the change is +5.2%.
| 2025 indicator | Landes | Nouvelle-Aquitaine | France |
|---|---|---|---|
| Median price | €236,758 | €170,000 | €189,200 |
| Average price | €253,532 | €188,636 | €207,100 |
| Floor price (1st decile) | €136,874 | €83,000 | €90,000 |
| Ceiling price (9th decile) | €400,000 | €315,785 | €340,000 |
| Median price per m² of living space | €2,250/m² | €1,657/m² | €1,830/m² |
| Average living space | 111 m² | 110 m² | 108 m² |
| Average plot size | 3,628 m² | 4,005 m² | 3,181 m² |
| Number of sales in 2025 | 2,208 | 26,126 | 150,313 |
A departmental average hides large gaps. A smallholding to renovate, a restored longère with its outbuildings, a farmhouse on several hectares of land or a manor house with parkland do not sell at the same price, and the location matters as much as the building: coastline, tourist area, peri-urban countryside close to a job market or deep countryside. The table below shows the median price of country houses in Landes (40) by type of municipality (cumulative sales from mid-2020 to 2025) and its change between 2021 and 2025.
| Type of municipality | Median price 2020-2025 | Median price per m² | Change 2021-2025 | Sales 2020-2025 |
|---|---|---|---|---|
| Tourist coastline | €316,000 | €3,243/m² | +2.6% | 997 |
| Residential coastline | €365,000 | €3,679/m² | -1.9% | 475 |
| Inland tourist areas (hinterland, mountains) | €300,000 | €3,039/m² | +9.9% | 496 |
| Peri-urban countryside (city catchment area) | €220,000 | €2,045/m² | +11.9% | 7,010 |
| Deep countryside (outside urban influence) | €210,000 | €2,033/m² | +5.9% | 4,753 |
These benchmarks help you assess a listing, estimate a property before putting it up for sale, or set your budget for a holiday home or a permanent move to the French countryside. To go further, see our observatory of country house prices in France (national, regional and departmental analysis, downloadable annual report) and work out the full cost of your purchase, including French notary fees, with our notary fees calculator.
The flat, sandy relief of the Landes de Gascogne forest has never favoured watermills: they are mainly found on the Adour around Aire-sur-l'Adour and Saint-Sever, on the Midouze near Mont-de-Marsan, and on tributaries such as the Gabas, the Louts or the Estampon. On the coast, the streams draining the lakes of Léon, Soustons and Aureilhan towards the ocean — the Huchet, Contis and Soustons currents — also once powered tide-influenced mills, now exceptionally rare on the market. Mills that still have a stone weir and a fish pass reflect recent efforts to restore ecological continuity on these coastal river basins.
Windmills are entirely absent from the Landes landscape, since pine forest replaced the open, wind-exposed farmland from the 19th century onwards. The few properties for sale are therefore watermills or former village flour mills, sometimes combined with a sawmill or a walnut-oil mill, converted into homes with timber-and-brick Landes-style main buildings.
The best-stocked area lies around Saint-Sever, Hagetmau and Aire-sur-l'Adour, along the Adour valley, close to Dax railway station and the A65 motorway. The Mont-de-Marsan area, on the Midouze and Midou rivers, still has a few mills near the region's traditional foie-gras markets. On the coast, Soustons, Léon and Mimizan, bordering their lakes and streams, offer a different setting, between pine forest and protected wetlands. Proximity to the A63 motorway and to Bordeaux makes second-home projects around these areas easier to plan. The wooded banks of these rivers also shelter a few former forges or tanneries, converted along the same logic of water-powered energy use as the mills themselves.
Properties near the coast and the lakes, in Soustons or Mimizan, sell for noticeably more than mills further inland, driven by tourist demand in Landes. Conversely, the eastern part of the department, around Villeneuve-de-Marsan or Roquefort, remains more affordable for a mill to renovate on a small stream. The market here is generally less competitive than in neighbouring Pyrénées-Atlantiques, leaving room to negotiate on a property that needs significant work.
On a Landes waterway, first check the water rights attached to the mill — fondé en titre or a simple authorisation — as well as the condition of the millrace, sluice gates and weir. Ecological continuity is a sensitive issue on the Adour and its tributaries, classified for migratory fish such as salmon and shad. The sandy soil and shallow water table expose some of these properties to flood zoning or rising damp, which should be assessed before buying. A surveyor or a hydraulic engineer can usefully be brought in to establish a precise record of the water rights before any negotiation.
The original machinery — water wheel, millstone, gearing — is rarely complete; its condition determines whether a hydroelectric project using a turbine or micro-plant is feasible, and should be checked with the water authorities. The timber-and-brick outbuildings typical of Landes architecture lend themselves well to a gîte project, an activity in demand near the coast and the Marsan area. A visit with a roofer specialised in period buildings is advisable to estimate repair costs before committing.
On ma-propriete.fr, mill listings in Landes are published by private sellers, estate agents and notaries. Filter by budget, living space and land area, set up an email alert to be told of new listings, and browse all mills for sale in Nouvelle-Aquitaine if your search extends beyond the department. Beyond the department, mills with sea views near Léon or Vieux-Boucau attract a specific niche of buyers, so it is worth setting broad search criteria from the start.
