Commune · data to June 2026
House prices in Rosny-sous-Bois
Homes in Rosny-sous-Bois sold for a median €3,862 per m² in the 12 months to June 2026, unchanged on the year before. That is the median of 447 sales recorded in property deeds. That is higher than in 85% of communes.
- Median sale price per m²
- €3,862/m²
- Change in a year
- 0.0%
- Apartments
- €3,777/m²
- Houses
- €4,455/m²
- land included
- Sales in 12 months
- 447
Rosny-sous-Bois: −8.0% in 4 years
Median sale price per m², over the 12 months to each quarter
- Rosny-sous-Bois
- Seine-Saint-Denis
- France
Show the numbers
| Quarter | Rosny-sous-Bois | Seine-Saint-Denis | France |
|---|---|---|---|
| Q2 2026 | €3,862/m² | €4,000/m² | €2,605/m² |
| Q1 2026 | €3,864/m² | €4,000/m² | €2,588/m² |
| Q4 2025 | €3,864/m² | €3,992/m² | €2,589/m² |
| Q3 2025 | €3,864/m² | €3,973/m² | €2,581/m² |
| Q2 2025 | €3,863/m² | €3,958/m² | €2,564/m² |
| Q1 2025 | €3,748/m² | €3,941/m² | €2,559/m² |
| Q4 2024 | €3,830/m² | €3,947/m² | €2,542/m² |
| Q3 2024 | €3,807/m² | €3,977/m² | €2,551/m² |
| Q2 2024 | €3,870/m² | €4,028/m² | €2,577/m² |
| Q1 2024 | €4,040/m² | €4,090/m² | €2,610/m² |
| Q4 2023 | €4,067/m² | €4,152/m² | €2,644/m² |
| Q3 2023 | €4,201/m² | €4,224/m² | €2,685/m² |
| Q2 2023 | €4,217/m² | €4,264/m² | €2,704/m² |
| Q1 2023 | €4,203/m² | €4,292/m² | €2,696/m² |
| Q4 2022 | €4,200/m² | €4,302/m² | €2,675/m² |
| Q3 2022 | €4,189/m² | €4,273/m² | €2,627/m² |
| Q2 2022 | €4,200/m² | €4,271/m² | €2,566/m² |
Reports for Rosny-sous-Bois
Each report opens the full series and the assumptions behind these figures.
At the median sale price, a 90 m² home costs €347,580. With 10% down and a 30-year mortgage, the payment is €1,353 a month. The HCSF caps it at 35% of a household's income.
- Payment, two incomes
- 33%
- Payment, one income
- 67%
Owning a 90 m² apartment costs less each month than renting it. Owning counts interest, running costs and the return the deposit could earn, at apartments' median sale price; rent is the asking rent. Repaying the loan is saving, so it is left out.
- Rent per month
- €1,858
- Owning per month
- €1,244
Figures for Seine-Saint-Denis: Rosny-sous-Bois has no reliable figures of its own.
10.1% fewer homes were licensed for construction in the last 12 months than in an average year of the past decade.
- Licensed, 12 months
- 11,995
In 2022 the population grew by 1,233 while 670 homes were started: 1.8 new residents for every new home.
- New residents per new home, 2022
- 1.8
- Population change, 2022
- +1,233
9.9% of the 22,827 homes counted in the 2023 census stood empty, whether for sale, to let or for other reasons.
- Empty, 2023 census
- 9.9%
- Empty homes
- 2,263
In 2025, 2% of the homes authorised were in existing buildings: conversions, extensions and changes of use.
- Homes in existing buildings, 2025
- 2%
Other communes in Seine-Saint-Denis
| Commune | Median sale price per m² | In a year |
|---|---|---|
| Les Lilas | €6,696 | +2.4% |
| Saint-Ouen-sur-Seine | €6,432 | +2.2% |
| Le Pré-Saint-Gervais | €6,114 | −3.1% |
| Montreuil (93) | €6,071 | +4.1% |
| Pantin | €6,042 | +2.2% |
| Bagnolet | €5,638 | +7.9% |
| Romainville | €5,425 | +5.1% |
| Neuilly-Plaisance | €4,391 | −1.5% |
| Noisy-le-Grand | €4,316 | +0.3% |
| Aubervilliers | €4,191 | +1.8% |
| Le Raincy | €4,040 | −6.1% |
| Saint-Denis (93) | €3,924 | +4.1% |
| Rosny-sous-Bois | €3,862 | 0.0% |
| Le Blanc-Mesnil | €3,804 | −0.8% |
| Villemomble | €3,740 | −0.7% |
| Noisy-le-Sec | €3,646 | +1.1% |
| Bobigny | €3,433 | −5.1% |
| Drancy | €3,432 | −6.2% |
| Neuilly-sur-Marne | €3,429 | −0.2% |
| Gagny | €3,410 | −4.8% |
| Aulnay-sous-Bois | €3,346 | −8.6% |
| Montfermeil | €3,294 | −1.9% |
| Tremblay-en-France | €3,233 | +1.4% |
| Les Pavillons-sous-Bois | €3,216 | −2.6% |
| Livry-Gargan | €3,109 | −0.6% |
| Bondy | €3,086 | −2.0% |
| Stains | €2,967 | +0.7% |
| Villepinte (93) | €2,947 | +2.6% |
| Épinay-sur-Seine | €2,917 | 0.0% |
| Sevran | €2,554 | −10.5% |
The 30 with the most sales, of 38 with a published median.