The average price per m² in Jouars-Pontchartrain is 3 656 €/m² for an apartment, based on actual notarised (DVF) sales. About 23 transactions are recorded each year.

Atmospheric illustration of Jouars-Pontchartrain, in Yvelines.
The median price observed in Jouars-Pontchartrain stands at around 3 656 €/m². This average covers a housing stock made up overwhelmingly of detached houses, where the individual house takes precedence over apartments. The built fabric is divided between the village of Pontchartrain, stretched along the old road to Chartres, and the rural hamlets that ring the municipality, each with its own value levels. This figure comes from DVF data, the French notarised sales database, which lists the transactions actually registered with notaries, and not from asking-price estimates. The annual volume remains modest, around twenty sales, which makes each property unique.
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 population of Jouars-Pontchartrain is growing steadily, having increased since the late 2010s. This growth reflects the appeal of rural municipalities in western Île-de-France for households seeking a house with land without moving too far from employment hubs. The proximity of Saint-Quentin-en-Yvelines and Versailles supports this demand. The market nonetheless remains narrow, driven by a small number of annual transactions, which increases the weight of each sale in price benchmarks and limits the reading of short-term trends.
The main driver of the market remains the structure of the housing stock, overwhelmingly made up of detached houses. The scarcity of available properties, in a municipality where people keep their house for a long time, sustains tension between supply and demand. The RN 12 national road and its 2003 bypass have clarified access while calming the village. The listing of the château and the presence of the neighbouring nature park frame urban development and preserve the rural character, which limits large-scale new-build schemes and concentrates transactions on the resale market.
The price level of Jouars-Pontchartrain sits above that of Maurepas, close to that of Montigny-le-Bretonneux and below that of Villepreux.
The territory of Jouars-Pontchartrain bears the traces of Diodurum, a Gallo-Roman settlement regarded as the most important administrative and commercial site in present-day Île-de-France. Established as early as the first century BC, the town covered some forty hectares, at a crossroads linking Lutèce, Chartres, Dreux and Orléans. Rescue excavations carried out between 1994 and 1998, in connection with works on the RN 12 national road, uncovered paved streets, temples, residential quarters and the remains of an ancient theatre. Occupation continued until the fifth and sixth centuries. The name Jouars derives directly from Diodurum.
After the decline of the ancient town, the population moved and new villages formed, including Jouars, where a church dedicated to Saint Martin was built. The name Pontchartrain comes from Pontem Carnotensem, the bridge on the road leading to Chartres. This crossing point shaped the growth of the village around its road axis. In the seventeenth century, a rerouting of the road by the Count of Maurepas diverted traffic from Neauphle-le-Château towards Pontchartrain, which boosted local trade and permanently anchored the village centre along this route.
The Château de Pontchartrain marks the history of the municipality. Acquired at the beginning of the seventeenth century by the Phélypeaux family, several generations of which held high royal offices, it was remodelled for Louis Phélypeaux, Chancellor of France. In 1693, André Le Nôtre, gardener to Louis XIV, designed the park of the estate. The building has been listed as a historic monument since 1979. The municipality is crossed by the RN 12 national road, whose bypass in tunnel and cutting, opened in 2003, relieved the village of heavy through traffic. This scheme changed the living environment of the old centre.
Jouars-Pontchartrain has 6 039 inhabitants according to INSEE, the French statistics institute. The municipality has a clearly residential profile, geared towards families settled for the long term. According to INSEE, main residences account for around 90 % of dwellings, a sign of a small share of second homes. The housing stock consists overwhelmingly of detached houses, around 80 % of dwellings, against a limited proportion of apartments. Owner-occupation dominates, at around eight dwellings in ten. Buyers are mainly households looking for a house with a garden, within reasonable distance of Versailles and the Saint-Quentin-en-Yvelines employment area, while remaining in a preserved rural setting.
The median price recorded in Jouars-Pontchartrain stands at around 3 656 €/m². This level reflects a market dominated by the detached house, in a rural municipality in the west of Yvelines. The value of a property varies with its location, between the village of Pontchartrain and the hamlets, its floor area, the size of its plot and its condition. This figure, taken from DVF data, serves as a benchmark; an accurate valuation requires examining the specific features of the home.
The municipality is organised around the village of Pontchartrain, stretched along the old road to Chartres, and the older village of Jouars. Several rural hamlets complete this layout on the outskirts. Detached housing dominates everywhere, with plots generally larger further from the centre. This scattered layout explains why two houses of similar floor area can show fairly different values depending on their location.
Jouars-Pontchartrain lies about 35 kilometres west of Paris and 18 kilometres from Versailles. The RN 12 national road crosses the territory and forms the main access route; its bypass, opened in 2003, avoids the village centre. The municipality remains close to the employment area and railway stations of Saint-Quentin-en-Yvelines, which makes it accessible to households working in the neighbouring conurbation while living in the countryside.
The local market is clearly geared towards houses. According to INSEE, around 80 % of dwellings are detached houses, and apartments remain a minority. A buyer targeting this municipality is most often looking for a house with a garden in a rural setting. Apartments are available but remain limited, concentrated mainly in the village centre. This housing stock structure weighs on sales volumes, with only around twenty transactions a year.
The municipality combines an old heritage and a preserved rural setting. The Château de Pontchartrain, listed as a historic monument, and the memory of the ancient town of Diodurum give it a strong local identity. The bypass of the RN 12 national road has made the centre quieter. Life keeps the pace of a Yvelines village, with houses on their own plots, close to the employment hubs of western Île-de-France. This profile attracts families looking for space.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).