The average price per m² in Cergy is 3 264 €/m² for an apartment, based on actual notarised (DVF) sales. About 427 transactions are recorded each year.
Ambience illustration of Cergy, in the Val-d'Oise.
In Cergy, the average price of apartments stands at 3 264 €/m², based on the DVF data, that is, on sales actually registered before notaries. That average covers a stock made up overwhelmingly of flats, built in waves since the 1970s: the blocks of the Grand Centre around the prefecture, the estates of the 1980s along the Axe Majeur and the Horloge, more recent schemes in the Hauts-de-Cergy. The gaps owe above all to the year of construction, to the distance from the three stations and to the health of the block's management. Houses, in the minority, are concentrated on the Coteaux, the Orée du Bois and the banks of the Oise, around the old village.
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.
After 3 366 €/m² in 2021, the average price in Cergy reaches 3 264 €/m² in 2026, roughly -3 % over the period.
Demographics are the first driver of the Cergy market. The commune went from 60 528 inhabitants in 2012 to 70 906 in 2023, and its housing stock from 28 953 units in 2017 to 33 100 in 2023, more than 4 000 additional dwellings in six years. That growth rests on new schemes delivered regularly, notably in the Hauts-de-Cergy and around the Grand Centre. A sustained flow of construction widens supply and limits price tension, while constantly renewing the make-up of the stock offered for sale.
The second driver is employment and the role of a centre. Seat of the Val-d'Oise prefecture since 1970, Cergy concentrates public bodies, services and campuses, with CY Cergy Paris Université and ESSEC. This base of activity feeds continuous local demand, distinct from that of the residential communes of the outer ring. The market stays liquid, with around 427 transactions a year in the commune, a volume that gives solid price markers by district. The service on branch A3 of the RER A and on line L remains the main factor of differentiation between sectors.
Cergy sits in the lower part of this group of communes in the north-west of the Paris region. Its price level stays close to that of Argenteuil, below L'Isle-Adam and clearly under Maisons-Laffitte.
Cergy is mentioned in the form Cirgiacum in 1144, a Gallo-Roman place name formed on a Latin personal name followed by the suffix -acum. Until the 12th century, the territory belonged to the royal domain. In 1120, Louis VI gave it to the abbey of Saint-Denis, which kept the lordship until the Revolution, in 1793. The village then lived on farming and vines, on the hillside overlooking the loop of the Oise, around the Saint-Christophe church. In the 19th century, a toll bridge crossed the Oise in 1870; a local railway line opened in 1912 and closed in 1948. Cergy remained until then a rural commune of a few thousand inhabitants.
Everything changed with the new towns policy. The decision to build a new conurbation in the loop of the Oise was taken in 1965. The public development body was set up on 16 April 1969, the building of the Val-d'Oise prefecture, designed by Henry Bernard, opened in 1970, and the new town of Cergy-Pontoise was officially created on 11 August 1972. Cergy became its central commune and the seat of the prefecture, distinct from Pontoise, its historic neighbour on the other bank. ESSEC business school moved to its Cergy campus in 1973. The plan for a hovertrain towards La Défense, considered for a time, was abandoned in 1974.
Urban growth then unfolded district by district, at the pace of the stations. Cergy-Préfecture opened on 31 March 1979, Cergy-Saint-Christophe on 29 September 1985, Cergy-le-Haut on 29 August 1994, each serving as an anchor for a new residential sector. In 1980, Dani Karavan began the Axe Majeur, a monumental walk of twelve stations over 3,2 kilometres, whose tower was unveiled on 14 January 1986; the whole received the Remarkable Contemporary Architecture label in 2022. The university, created in the early 1990s, became CY Cergy Paris Université in 2020. The commune today has nine districts, from the old village on the banks of the Oise to the Hauts-de-Cergy.
Cergy has 70 906 inhabitants and 33 100 dwellings, of which 87,7 % are main residences and 4,4 % second or occasional homes, according to INSEE, the French national statistics institute. The stock is made up of 82,6 % apartments, against 15,8 % houses: the commune is a market of flats. Again according to INSEE, 66,2 % of households rent their main residence and 30,9 % own it, a share of tenants clearly above the Paris-region average. Buyers are therefore partly first-time buyers and families becoming owners at a price level that stays contained for the Paris region, and partly investors drawn by rental demand fed by the campuses.
The average price of apartments in Cergy stands at 3 264 €/m², calculated on DVF sales actually completed before notaries, with a volume on the order of 427 sales a year. That town-wide average covers appreciable gaps depending on the district, the period of construction and the distance to one of the three stations. A given property can therefore sit clearly above or below that marker.
Cergy is divided into nine districts. The single-family sectors and the banks of the Oise, around the old village, the Orée du Bois and the Coteaux, generally trade above the town-wide average. The Hauts-de-Cergy, more recent, and the immediate surroundings of the stations also support prices. The large estates of the 1970s and 1980s in the Grand Centre and the Horloge sit rather in the lower part of the market.
Three stations serve the commune: Cergy-Préfecture, Cergy-Saint-Christophe and Cergy-le-Haut. They are served by branch A3 of the RER A, which runs to La Défense and then central Paris, and by Transilien line L towards Paris-Saint-Lazare. By car, the A15 motorway links Cergy to the northern loop of the Paris region. This double rail service is a decisive price criterion from one district to another.
Yes, but they stay in the minority: the commune's stock counts 15,8 % houses against 82,6 % apartments, according to INSEE. They are found above all in the single-family sectors of the Coteaux, the Orée du Bois, the Trois Bois and near the old village on the banks of the Oise. That relative scarcity explains why houses often sell faster than flats, with short negotiation times on properties in good condition.
They weigh on rental demand. CY Cergy Paris Université hosts more than 25 000 students and ESSEC has been based in the commune since 1973. This population keeps a permanent need for studios and one-bedroom flats, which partly explains the share of tenants recorded by INSEE. Small units close to the stations and the campuses therefore resell more easily than in a comparable residential commune.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).