Price of a 4-room apartment (T4) in Rosny-sous-Bois
In Rosny-sous-Bois, the median price of a T4 is €3,115/sq.m, i.e. about €242,970 for an average area of 78 sq.m. Data from actual DVF transactions by the DGFiP (55 sales over the 12 months ending 31 December 2025).
Price range (T4)
What DVF sales say about the price of a T4 in Rosny-sous-Bois
Among the neighbouring towns tracked by Briveo that measure the same property type, Saint-Ouen-sur-Seine comes out at €6,570/sq.m, about 111% above, and Livry-Gargan at €2,447/sq.m, about 21% below. At €3,115/sq.m, the median price lands in the lower third of the town's apartment range, 1st to 3rd quartile. Apartments sold in the town average 57 sq.m, against 78 sq.m for the T4, about 37% more. Of the 6 property types measured in Rosny-sous-Bois, the T4 ranks 5th by price per sq.m and 4th by number of sales over 12 months. Out of 430 apartment and house sales in the town over 12 months, 55 concern this property type, about 13%. For all of the town's apartments, whatever their number of rooms, DVF sales published by the DGFiP show the median price per sq.m moving +2.8% over one year.
Observed sale prices of a T4 in Rosny-sous-Bois
Of the sales of a T4 à Rosny-sous-Bois, half closed between 205,650 € and 305,500 €, for a median price of 257,700 €.
Half of the T4 sold measure between 73 and 84 sq.m.
Three years of sales
| Year | Sales | Median per sq.m |
|---|---|---|
| 2023 | 62 | €3,254/sq.m |
| 2024 | 53 | €2,875/sq.m |
| 2025 | 55 | €2,988/sq.m |
Between 2023 and 2025, the median price per sq.m of a T4 went from 3,254 € to 2,988 €, −8.2 %.
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 55 sales
- Figures computed on 31 October 2026
The town
Rosny-sous-Bois covers 5.9 km², lies between 45 and 116 m above sea level and had 47,180 inhabitants in the 2023 census.
Rosny-sous-Bois [ʁonisubwɑ] is a French commune situated in Île-de-France, to the east of Paris, in the département of Seine-Saint-Denis.
The full property page of the town
From Wikidata and the Wikipedia article « Rosny-sous-Bois », licensed CC BY-SA 4.0, read on 13 October 2026. Translated from the French article. Read the article
Other property types in Rosny-sous-Bois
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 Rosny-sous-Bois
Q1What is the price of a T4 in Rosny-sous-Bois in 2026?
In Rosny-sous-Bois, the median price of a T4 is €3,115/sq.m, with a range of €2,540 to €3,687/sq.m (1st to 3rd quartile), based on DVF sales published by the DGFiP.
Q2What budget for a T4 of 78 sq.m in Rosny-sous-Bois?
For the average observed area (78 sq.m), the indicative budget goes from about €198,120 (1st quartile) to €287,586 (3rd quartile), around €242,970 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 Rosny-sous-Bois?
The median price of a T4 in Rosny-sous-Bois is about 17% below the city's apartment median (€3,754/sq.m), based on DVF sales published by the DGFiP.
Q4How many T4 sales in Rosny-sous-Bois?
The DGFiP DVF database records 55 sales of this type in Rosny-sous-Bois over the last 12 months.