Price of a 4-room apartment (T4) in Boulogne-Billancourt
In Boulogne-Billancourt, the median price of a T4 is €8,558/sq.m, i.e. about €761,662 for an average area of 89 sq.m. Data from actual DVF transactions by the DGFiP (256 sales over the 12 months ending 31 December 2025).
Price range (T4)
What DVF sales say about the price of a T4 in Boulogne-Billancourt
The average area of the T4 sold, 89 sq.m, is about 55% larger than that of the apartments sold in the town, 58 sq.m. The median price, €8,558/sq.m, falls in the middle third of the town's apartment price range, from the 1st to the 3rd quartile. The 256 T4 sales recorded over 12 months weigh about 16% of the 1,638 apartment and house sales in the town. On price per sq.m the T4 holds position 4th among the 6 property types Boulogne-Billancourt measures, and position 4th on twelve-month volume. Compared with the neighbouring towns tracked by Briveo where this property type is measured, Neuilly-sur-Seine comes out at €10,914/sq.m, about 28% above, and Rueil-Malmaison at €5,583/sq.m, about 35% below. Across all the town's apartments, whatever their number of rooms, the median price per sq.m has moved +2.1% over one year, based on DVF sales published by the DGFiP.
Observed sale prices of a T4 in Boulogne-Billancourt
Of the sales of a T4 à Boulogne-Billancourt, half closed between 600,000 € and 950,000 €, for a median price of 743,950 €.
Half of the T4 sold measure between 78 and 98 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 217 | €9,010/sq.m |
| 2024 | 205 | €8,000/sq.m |
| 2025 | 256 | €8,647/sq.m |
Between 2023 and 2025, the median price per sq.m of a T4 went from 9,010 € to 8,647 €, −4 %.
Source and method
- Property transfer records (DVF), published by the French tax authority (DGFiP)
- Sales recorded from 1 January 2023 to 31 December 2025
- Based on 256 sales
- Figures computed on 30 October 2026
The town
Boulogne-Billancourt covers 6.2 km², lies between 28 and 40 m above sea level and had 119,019 inhabitants in the 2023 census.
Boulogne-Billancourt (prononcé) is a French commune in Hauts-de-Seine and the métropole du Grand Paris in the Île-de-France region, the third most populous commune in Île-de-France after Paris and Saint-Denis. It results from the union, carried out under the name of Boulogne-sur-Seine in 1790, of Boulogne-la-Petite, a parish established in 1343 around the église Notre-Dame de Boulogne sur Seyne, and the right bank of Saint-Cloud.
The full property page of the town
From Wikidata and the Wikipedia article « Boulogne-Billancourt », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Boulogne-Billancourt
Price of a T4 in nearby cities
Cities tracked by BRIVEO in the same department, median for the same property type when available.
Frequently asked questions, T4 in Boulogne-Billancourt
Q1What is the price of a T4 in Boulogne-Billancourt in 2026?
In Boulogne-Billancourt, the median price of a T4 is €8,558/sq.m, with a range of €7,211 to €9,974/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T4 of 89 sq.m in Boulogne-Billancourt?
For the average observed area (89 sq.m), the indicative budget goes from about €641,779 (1st quartile) to €887,686 (3rd quartile), around €761,662 at the median price. Indicative calculation, DVF price per sq.m multiplied by the area, excluding notary fees.
Q3How does the price of a T4 compare with apartments in Boulogne-Billancourt?
The median price of a T4 in Boulogne-Billancourt is about 2% above the city's apartment median (€8,406/sq.m), based on DVF sales published by the DGFiP.
Q4How many T4 sales in Boulogne-Billancourt?
The DGFiP DVF database records 256 sales of this type in Boulogne-Billancourt over the last 12 months.