A mill for sale in Yvelines (78) is most often found along small rivers such as the Mauldre, the Vaucouleurs or the Yvette, or on the open plateau of the Vexin français, where windmills once dotted the skyline. On this page, ma-propriete.fr brings together the mills for sale in Yvelines: former watermills to renovate, restored Vexin windmills, and miller's houses with outbuildings. These properties are scarce and much contested among Paris-region buyers whenever one comes onto the market.
You will also find price benchmarks based on actual sales, an overview of where these properties are concentrated, and the points to check before buying a mill, in a department under strong Paris-area demand where competition for a good property can be intense. To prepare your project, read our white paper on creating a rural gîte, whose advice applies fully to a mill, from checking the roof to assessing the outbuildings and land.
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 Yvelines (78)? According to DVF data (notarised sales) analysed by the ma-propriete.fr observatory, the median price of a country house in Yvelines (78) stood at €346,650 in 2025, with an average price of €378,718 and a median price of €2,966/m² of living space (763 house sales in rural municipalities over the year). The price range is wide: 10% of houses sold for less than €230,000 (floor price, 1st decile) and 10% for more than €575,000 (ceiling price, 9th decile). The typical country house here offers 126 m² of living space on an average plot of 1,840 m², i.e. around 0.2 ha.
This market is well above the regional median (Île-de-France: €280,000) and well above the national median (€189,200). Since the second half of 2020, the median price has risen from €350,000 to €346,650, i.e. -1.0%; over one year (2024-2025) the change is -1.1%.
| 2025 indicator | Yvelines | Île-de-France | France |
|---|---|---|---|
| Median price | €346,650 | €280,000 | €189,200 |
| Average price | €378,718 | €295,207 | €207,100 |
| Floor price (1st decile) | €230,000 | €171,000 | €90,000 |
| Ceiling price (9th decile) | €575,000 | €435,000 | €340,000 |
| Median price per m² of living space | €2,966/m² | €2,603/m² | €1,830/m² |
| Average living space | 126 m² | 116 m² | 108 m² |
| Average plot size | 1,840 m² | 1,590 m² | 3,181 m² |
| Number of sales in 2025 | 763 | 3,611 | 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 Yvelines (78) 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) * | €362,912 | €3,128/m² | +84.6% | 40 |
| Peri-urban countryside (city catchment area) | €365,872 | €3,081/m² | -7.4% | 4,816 |
* Between 30 and 99 sales: indicative value.
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 Mauldre, between Beynes and Maule, and the Vaucouleurs, near Septeuil, carried numerous small watermills, most now converted into homes with the millrace preserved and a garden along the valley floor. The Chevreuse valley further south adds a few mills on streams feeding the Yvette, in a wooded setting protected by the regional nature park. On the open plateau of the Vexin français, in the north of the department, historic windmills are now rare and remain sought after whenever offered for sale, often with a timber frame to rebuild.
Large industrial flour mills, by contrast, mainly settled along the Seine at the edge of the department rather than on the smaller inland rivers; several of these former riverside factories have since been demolished or fully converted into apartment blocks.
The Mauldre valley, around Maule and Beynes, and the Houdan area further west, offer the most habitable mills with land, in a still-rural setting despite the proximity of Paris and its employment area. The Vexin français, near Magny-en-Vexin and Limay, adds options for windmill buyers. Further south, the Chevreuse valley and the area around Rambouillet and its forest attract buyers seeking quiet, close to Versailles and its main road links.
Areas close to Versailles and Mantes-la-Jolie railway station, well connected to Paris, sell well above the regional average. The northern Vexin and the western part of the department, around Houdan, remain the most affordable areas, though prices there still exceed those of many rural departments.
For a watermill, check the water rights (fondé en titre or holding an authorisation), the condition of the millrace and sluice gates, and the ecological-continuity obligations on the Mauldre and its tributaries, closely monitored by Paris-region water authorities. For a windmill, the state of the timber frame, the conical roof and the machinery, where it survives, largely drives the renovation budget; a hydroelectric project is rarely relevant on this type of building given its heritage purpose.
On the building, check flood zoning along the riverbank and the condition of the outbuildings, sometimes former barns or sheds, and confirm that any past extension or conversion was properly authorised, a frequent issue on older Île-de-France mills. The immediate proximity of Paris and Roissy airport, and Parisian demand, make a gîte or short-let project easier to run, subject to local planning rules.
On ma-propriete.fr, mill listings in Yvelines 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 Île-de-France if your search extends beyond the department.
