The average price per m² in Clause-Bois Badeau (Brétigny-sur-Orge) is 3 469 €/m² for an apartment, within a range of 3,1 to 3,8 k€ per m², based on actual notarised (DVF) sales. Over the period, the market fell 2 % over 5 years and fell 2,2 % over the last 12 months, with about 35 transactions per year.

Clause-Bois Badeau, the eco-district of Brétigny-sur-Orge.
Apartments in the Clause-Bois Badeau district of Brétigny-sur-Orge sell at an average price of around 3 469 €/m², based on prices actually recorded (DVF transactions, the French notarised sales database). Between 3 125 and 3 837 €/m² covers half of the sales, the spread coming from the year of construction, the floor, the aspect and the presence of a parking space. Change over five years: -2 %.
Prices from the DVF file (Demandes de valeurs foncières, published by the DGFiP), transactions actually recorded at the notary, aggregated at district level using the IRIS zoning of INSEE. Cross-referenced with the Notaires de France - INSEE indices. Learn more about our methodology.
After 3 545 €/m² in 2021, the average price in the Clause-Bois Badeau district of Brétigny-sur-Orge reaches 3 469 €/m² in 2026, roughly -2 % over the period.
Shops and offices of the eco-district, along avenue Lucien-Clause.
Schools and facilities built with the development scheme.
Parc Clause Bois Badeau, the La Fontaine villa sector to the north.
The Clause-Bois Badeau district, in the north-west of Brétigny-sur-Orge. Google Maps map.
Clause-Bois Badeau occupies the north-west of Brétigny-sur-Orge, on the former land of the Clause seed company. The eco-district counts some two thousand four hundred homes, built during the 2010s and 2020s, with shops, offices and a park. Two street references have been checked here by point-in-polygon: chemin du Bois-Badeau and avenue Lucien-Clause.
The locality that dominates the transactions of the sector still bears the name of the Établissements Clause, with two hundred and ten lines, ahead of La Fourche and Les Hauts Courbes Culs. The new avenues, for their part, carry contemporary names: Claude-Lévi-Strauss, Marguerite-Yourcenar, Simone-Veil, Georges-Charpak. To these are added rue du Bois-de-Châtres, rue de Valorge, avenue Jules-Marquis and rue Pierre-Brossolette.
The district also takes in the La Fontaine sector, to the north, a set of villas whose streets are named after tree species, from the alders to the beeches. That sector records only one apartment sale over the last two vintages: it is detached housing, and it cannot carry a page of its own.
The district sits at 3 469 €/m², 9 % above the communal average, which makes it the highest price in Brétigny-sur-Orge. It records thirty-five apartment sales a year. It loses 2 % over five years and 2,2 % over twelve months.
Clause-Bois Badeau is the new-build district of Brétigny, and its price says so: 3 469 €/m², 13 % above the town centre. It is a recent stock, built to current energy performance standards, with parking, shops and a park, which makes it the sector most sought after by families and by buyers who want to avoid renovation work. Thirty-five apartment sales a year make it the second volume of the commune, which keeps resale readable. Every property type here is above the communal average, from studios at 4 164 €/m² to T4 units and larger at 3 074: it is a market that is uniform at the top end, its range running from 3 125 to 3 837 €/m². The point to know is that the district eases back very slightly, by 2 % over five years, like the rest of the commune.
The average price in Clause-Bois Badeau is 3 469 €/m² for an apartment (actual DVF transactions, notarised sales), within a range of 3 125 to 3 837 €/m² depending on the building, the floor and the condition.
It is a development scheme carried out on the former land of the Clause seed company, in the north-west of Brétigny-sur-Orge. It carries some two thousand four hundred homes, built during the 2010s and 2020s, with shops, offices and a park. It is designed to sustainable development requirements.
Yes, at 3 469 €/m², that is 9 % above the communal average and 13 % above the town centre. The gap comes from the building stock: it is the only new-build sector in the commune, and all of its property types sit above the average.
No, it is covered here. That villa sector in the north of the commune, whose streets are named after tree species, records only one apartment sale over the last two vintages: it is detached housing, and it is not possible to calculate a reliable flat price there.
Because these are two place names that predate the development scheme, and the statistical boundaries have not been renamed since. The sector is today the Clause-Bois Badeau eco-district, and that is the name the town and buyers use for it.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).