The average price per m² in Boulogne-Billancourt is 8 384 €/m² for an apartment, within a range of 7,2 to 9,4 k€ per m², based on actual notarised (DVF) sales. Over the period, the market fell 11 % over 5 years and rose 0,7 % over the last 12 months, with about 1,427 transactions per year.
Illustration of Boulogne-Billancourt, the largest town of the Hauts-de-Seine, at the gates of Paris.
Apartments in Boulogne-Billancourt sell at an average price of around 8 384 €/m², based on transactions actually recorded (DVF data for 2024-2025, the French database of notarised property sales). It is one of the most expensive towns in the Paris region outside Paris itself. The house market is markedly higher, in the order of 14 637 €/m², houses being rare in the town. After the peaks of 2021, prices have fallen by around 11 % over five years, as part of the correction that hit the western Paris area. The gaps between districts are marked: in the order of 6 540 €/m² at Pont de Sèvres to 9 276 €/m² in the Jean-Baptiste Clément area, to the north.
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 9 386 €/m² in 2021, the average price in Boulogne-Billancourt reaches 8 384 €/m² in 2026, roughly -11 % over the period.
Change in the average price per m² over twelve months, district by district, based on the most recent DVF sales.
The average price per m² for an apartment in each district of Boulogne-Billancourt covered by Immover, ranked from the most expensive to the most affordable.
The Boulogne-Billancourt market is one of the most expensive in the Paris region outside Paris. After the peaks of 2021, it has fallen by around 11 % over five years, as part of the high-end correction that hit Paris and the western Paris area after interest rates rose. Price levels nonetheless remain very high by the standards of the region.
Its distinctive feature is a strong north-south gradient: the north of the town, Haussmann-era and close to the Bois de Boulogne and to Paris, exceeds 9 000 €/m², while the south-west, towards Pont de Sèvres, stays below 7 000 €/m². Alongside the apartment market, the house market changes hands markedly higher, houses being rare in the town.
With an average price of around 8 384 €/m², Boulogne-Billancourt sits below Paris (around 10 345 €/m²) and below Neuilly-sur-Seine, but well above the large regional cities such as Lyon, Bordeaux or Nantes. It is one of the most expensive towns in the Paris region outside the capital.
Boulogne-Billancourt is the most populous of the towns of the Hauts-de-Seine, with around 121 000 inhabitants. Bordered by the Seine to the south and the west, and by the Bois de Boulogne to the north, it adjoins the 16th arrondissement of Paris. That position at the gates of the capital, combined with a quality housing stock, makes it one of the most sought-after addresses of the western Paris area.
The town carries the industrial legacy of the Renault factories, established from the start of the 20th century on the Île Seguin and in the Billancourt area. For decades, those factories shaped the face of the town and its social history. Their closure, at the end of the 1980s and during the 1990s, freed up vast sites along the Seine.
Those former Renault sites have been the subject of a large-scale conversion. On the Billancourt bank, the Le Trapèze eco-district took shape around the parc de Billancourt, seven hectares of green space. Facing it, the Île Seguin hosts La Seine Musicale, a concert hall delivered in 2017, and a cultural hub still developing. Boulogne-Billancourt has thus gone from factory town to park town.
The Boulogne-Billancourt market attracts families, managers and professionals looking for a residential setting close to Paris, with its green spaces and its transport links. Demand covers both the Haussmann-era apartments of the north of the town and the recent homes of the Le Trapèze eco-district. The scarcity of houses and the immediate closeness of Paris support prices among the highest in the Paris region outside the capital.
The average price in Boulogne-Billancourt is 8 384 €/m² for an apartment (actual DVF transactions, notarised sales), within a range of 7 198 to 9 375 €/m² depending on the district. Listing portals show asking prices, 10 to 20 % above the prices actually recorded at signing.
No, the gaps are marked. The north of the town, around Jean-Baptiste Clément and Les Princes-Marmottan, is the most expensive, in the order of 9 100 to 9 300 €/m², thanks to its Haussmann-era building stock and the closeness of the Bois de Boulogne and of Paris. The south-west, towards Pont de Sèvres, is more affordable, at around 6 500 €/m². The centre and the Le Trapèze eco-district sit at around 8 000 to 8 400 €/m².
Boulogne-Billancourt combines a position at the gates of Paris, adjoining the 16th arrondissement, a quality housing stock, green spaces (the Bois de Boulogne, the parc de Billancourt, the banks of the Seine) and good transport links with metro lines 9 and 10 and the T2 tram. That combination makes it one of the most expensive towns in the Paris region outside Paris.
No, not recently. After the peaks of 2021, the market has fallen by around 11 % over five years, as part of the correction of the western Paris market linked to rising interest rates. Price levels nonetheless remain among the highest in the Paris region outside the capital.
The town average is not enough: you have to start from the price of your district, which varies widely from north to south, then adjust for the storey, the view, the standard of the building and the condition of the property. The Immover valuation tool draws on the actual sales closest to your address.
This analysis is published by Immover, an independent observatory founded by Antony Barbier. Data sourced from official sources (DVF, INSEE, Notaries of France).