Looking for a mill for sale in Île-de-France means accepting a limited market: the region still has former watermills along the Seine, the Marne, the Oise and their tributaries, but urban pressure and development have removed or converted most of them, particularly in the inner suburbs. On this page, ma-propriete.fr brings together the mills for sale in Île-de-France: former watermills in Seine-et-Marne or Yvelines, millers' houses with water rights and, more broadly, rural properties near water features when no mill is available.
You will also find price benchmarks based on actual sales, an overview of the areas by department, and the specific points to check before buying a mill. To prepare your project, read our white paper on setting up a rural gîte, useful for converting a mill's outbuildings.
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 Île-de-France? According to DVF data (notarised sales) analysed by the ma-propriete.fr observatory, the median price of a country house in Île-de-France stood at €280,000 in 2025, with an average price of €295,207 and a median price of €2,603/m² of living space (3,611 house sales in rural municipalities over the year). 10% of houses sold for less than €171,000 (floor price, 1st decile) and 10% for more than €435,000 (ceiling price, 9th decile). The typical country house offers 116 m² of living space on an average plot of 1,590 m², i.e. around 0.2 ha.
The region is well above the national median (€189,200). Since the second half of 2020, the regional median price has risen from €274,325 to €280,000, i.e. +2.1%; over one year (2024-2025) the change is +3.6%.
| 2025 indicator | Île-de-France | France |
|---|---|---|
| Median price | €280,000 | €189,200 |
| Average price | €295,207 | €207,100 |
| Floor price (1st decile) | €171,000 | €90,000 |
| Ceiling price (9th decile) | €435,000 | €340,000 |
| Median price per m² of living space | €2,603/m² | €1,830/m² |
| Average living space | 116 m² | 108 m² |
| Average plot size | 1,590 m² | 3,181 m² |
| Number of sales in 2025 | 3,611 | 150,313 |
Differences between departments are significant: the median ranges from €250,600 in Seine-et-Marne (77) to €346,650 in Yvelines (78). The table below compares 2025 prices and their change since 2020.
| Department | Median price 2025 | Average price 2025 | Median price per m² | Change 2020-2025 | Sales 2025 |
|---|---|---|---|---|---|
| Seine-et-Marne (77) | €250,600 | €259,889 | €2,368/m² | +2.3% | 2,149 |
| Yvelines (78) | €346,650 | €378,718 | €2,966/m² | -1.0% | 763 |
| Essonne (91) | €284,600 | €297,767 | €2,741/m² | +3.5% | 433 |
| Val-d'Oise (95) | €333,000 | €336,830 | €2,993/m² | +0.5% | 266 |
A regional average also hides large gaps between municipalities. 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 Île-de-France 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 |
|---|---|---|---|---|
| Inland tourist areas (hinterland, mountains) | €250,000 | €2,369/m² | -1.3% | 135 |
| Peri-urban countryside (city catchment area) | €289,000 | €2,645/m² | -5.6% | 22,270 |
These benchmarks help you assess a listing, estimate a property before putting it up for sale, or set your budget, whether you are looking for a holiday home, a permanent move to the French countryside or a property to turn into a rural gîte. 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.
In Seine-et-Marne, the Loing, the Grand Morin, the Petit Morin and the Yerres rivers powered numerous watermills, some of which, well preserved around Moret-sur-Loing or the Grand Morin valley, still occasionally appear on the market. In Yvelines, the Mauldre, Vaucouleurs and Yvette rivers carried more modest flour mills, on the edge of the cereal plain. Essonne keeps a few mills on the Essonne and Juine rivers, in a setting that remains rural despite its closeness to Paris. In Essonne, the École valley and the Fontainebleau forest add an appreciated wooded setting around the rare mills still available.
In Hauts-de-Seine, Seine-Saint-Denis and Val-de-Marne, dense urbanisation has removed almost all historical mills; it is only fair to say so: properties of this type are practically non-existent there today, and a mill project is better looked for in Seine-et-Marne, Yvelines or Val-d'Oise, where the Oise and Sausseron valley still keeps a few examples. Some of these mills in the Paris region also served as bourgeois second homes from the 19th century onward, before the building's later agricultural use.
The Moret-sur-Loing and Nemours area, in Seine-et-Marne, less than an hour from Paris via Gare de Lyon, remains the richest for former restored watermills. The Grand Morin valley, around Coulommiers, offers a more rural setting and slightly more measured prices. In Yvelines, the Rambouillet area and the Mauldre valley remain sought after for their wooded setting, while Val-d'Oise, around L'Isle-Adam and the Oise valley, keeps a few mills tied to former river trade. Melun station and Transilien line R make commuting to Paris easier from eastern Seine-et-Marne.
The closer you get to Paris and the inner suburbs, the more the supply of mills disappears entirely in favour of dense housing. Conversely, eastern Seine-et-Marne and southern Yvelines, more rural, remain the areas where the best chance still exists of finding a mill to renovate, albeit at prices that reflect closeness to Paris. In Val-d'Oise, the Auvers-sur-Oise area, famous for its painting history, also keeps a setting well suited to riverside properties. A local notary can also confirm whether any residual milling easements still apply to a given property before signing.
As elsewhere, check the water rights (a mill fondé en titre or holding an authorisation), the condition of the millrace, weir and sluice gates. In Île-de-France, urban pressure often means strict planning rules and ecological continuity obligations on classified rivers, which can slow down a hydroelectric turbine project. Given how scarce supply is, a mill in the region is sometimes sold with an incomplete or missing mechanism. Given how rare genuine mills are in the region, buyers are often better served by considering nearby former mill houses as well.
The Seine, Marne and Oise valleys expose some mills to a real flood zoning risk, as several recent floods have shown: this point must be checked with the greatest care. Any remaining outbuildings (miller's house, shed) sometimes make it possible to plan a gîte, an activity that finds its customers thanks to the proximity of Paris. Finally, have the insurance history and past claims on the property checked, an especially sensitive point in the well-documented flood zoning of the Paris region.
On ma-propriete.fr, mill listings in Île-de-France 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 rural properties for sale if your search extends beyond mills. Do not hesitate to widen your search to the outer suburbs from the start, since the supply of genuine mills remains very limited in Île-de-France.
