Buying a mill for sale in Loire-Atlantique (44) means benefiting from one of the few French departments where watermills and windmills exist side by side in numbers: inland rivers such as the Erdre, the Sèvre Nantaise, the Don and the Isac around Châteaubriant and the Brière marshes once powered watermills, while the Guérande area and the Jade coast, from Guérande to Pornic, are dotted with stone tower windmills. On this page, ma-propriete.fr brings together the mills for sale in Loire-Atlantique: watermills, windmills, flour mills and millers' houses.
You will also find price benchmarks based on actual sales, an overview of the areas where these properties are concentrated, and the points to check before buying a mill. 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 mill. The department's dual coastal and wine-growing dynamic explains steady demand, both for seaside windmills and for watermills in the Nantes vineyard area.
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 Loire-Atlantique (44)? According to DVF data (notarised sales) analysed by the ma-propriete.fr observatory, the median price of a country house in Loire-Atlantique (44) stood at €230,000 in 2025, with an average price of €238,421 and a median price of €2,302/m² of living space (3,119 house sales in rural municipalities over the year). The price range is wide: 10% of houses sold for less than €135,900 (floor price, 1st decile) and 10% for more than €353,000 (ceiling price, 9th decile). The typical country house here offers 106 m² of living space on an average plot of 2,412 m², i.e. around 0.2 ha.
This market is well above the regional median (Pays de la Loire: €190,000) and well above the national median (€189,200). Since the second half of 2020, the median price has risen from €210,000 to €230,000, i.e. +9.5%; over one year (2024-2025) the change is +0.4%.
| 2025 indicator | Loire-Atlantique | Pays de la Loire | France |
|---|---|---|---|
| Median price | €230,000 | €190,000 | €189,200 |
| Average price | €238,421 | €199,126 | €207,100 |
| Floor price (1st decile) | €135,900 | €100,000 | €90,000 |
| Ceiling price (9th decile) | €353,000 | €308,000 | €340,000 |
| Median price per m² of living space | €2,302/m² | €1,875/m² | €1,830/m² |
| Average living space | 106 m² | 106 m² | 108 m² |
| Average plot size | 2,412 m² | 2,947 m² | 3,181 m² |
| Number of sales in 2025 | 3,119 | 14,604 | 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 Loire-Atlantique (44) 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 | €330,000 | €3,508/m² | +3.7% | 800 |
| Residential coastline | €245,000 | €2,453/m² | +0.8% | 1,807 |
| Peri-urban countryside (city catchment area) | €245,000 | €2,374/m² | +0.0% | 11,176 |
| Deep countryside (outside urban influence) | €185,000 | €1,852/m² | +8.6% | 4,771 |
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.
Inland, the Erdre north of Nantes, the Sèvre Nantaise around Clisson and Vallet, and the Don and Isac rivers around Châteaubriant and the Brière marsh, once carried numerous grain watermills, many now converted into homes with a millrace and pond. Some, on the edge of the marsh, are set among reed beds or wet meadows. The nearby Guérande salt marshes shape a distinctive property market in which built heritage, mills included, is traded within a protected environment.
On the coast, the Guérande area, the Guérande peninsula and the Jade coast as far as Pornic still hold a notable number of stone windmills, tower mills typical of western France, some of which have been restored as homes or kept as heritage features on their plot.
The Nantes vineyard area, around Clisson, Vallet and the Sèvre Nantaise, offers characterful watermills less than half an hour from Nantes and its TGV station. The more rural Châteaubriant area and the edge of the Brière marsh offer larger properties, often with outbuildings and land. On the coast, Guérande, Batz-sur-Mer and Pornic hold most of the windmills, in a market driven up by proximity to the sea. Nantes Atlantique airport and the TGV station make these areas easy to reach for both national and international buyers. The Redon area, on the border with Ille-et-Vilaine and Morbihan, adds mills on the Vilaine river, set among marshes and canals.
Mills on the Guérande coastline or in Pornic sell for noticeably more than the regional average, while watermills in the Châteaubriant area remain among the most affordable in the department. Ruined windmills, still numerous on the Guérande peninsula, are sometimes sold simply as heritage features on a farm plot, with no dwelling attached.
For a watermill, check the water rights, the condition of the millrace and sluice gates, and the ecological continuity rules on classified rivers such as the Sèvre Nantaise. For a windmill, attention should focus on the stability of the stone tower, the condition of the frame and rotating cap, and whether the original machinery survives. Local authorities, in particular the Brière Regional Nature Park, can impose specific restoration rules on certain listed mills.
Properties bordering the marshes, particularly around the Brière, can be affected by flood zoning or tidal-surge risk that should be assessed. The outbuildings available around many watermills make it possible to plan a gîte, an activity already well established between the Nantes vineyard area and the Jade coast. A heritage architect can usefully be consulted for restoring a listed windmill or one located in a protected area.
On ma-propriete.fr, mill listings in Loire-Atlantique 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 Pays de la Loire if your search extends beyond the department. Given the strong tourist appeal of the Guérande and Pornic areas, a mill suited to seasonal rental can be a relevant criterion to include in your search. Booking separate visits at different tide levels is particularly useful for a coastal windmill, and at different water levels for a watermill further inland.
