Homes in Sannois sell for a median €3,626/m²
From 722 sales of houses and apartments from July 2023 to June 2026; the median of compared French towns is €2,430/m². The median fell 10% from 2022 to 2025. Rents, property tax and the Cost of living Grade are on the cost of living page.
60% of the homes sold in Sannois were apartments
722 sales from July 2023 to June 2026: 289 houses and 433 apartments. Houses sold for 31% more per m² than apartments.
median price per m² · 289 sold in three years
- 70 m² at this price
- €297,900
- 2025 median
- €4,182/m² 105 sold
- 2022 to 2025
- −16%
- Median of compared French towns
- €2,502/m²
median price per m² · 433 sold in three years
- 70 m² at this price
- €227,200
- 2025 median
- €3,235/m² 163 sold
- 2022 to 2025
- −9.3%
- Median of compared French towns
- €2,750/m²
Houses are 30% of Sannois’ homes and 40% of its sales
DVF: sales of houses and apartments with a price and a living area. Price per m² of living area. A median needs 30 sales; no single sale is shown. Housing stock: INSEE, census 2023.
The median price fell 10% from 2022 to 2025
From €3,951/m² in 2022 to €3,564/m² in 2025.
Sales held steady
268 homes sold in 2025; the busiest year was 2022 with 373. In the first half of 2026, 124 sold at a median €3,613/m².
Sannois is dearer than the median compared town
Each line is a median of the towns’ own medians that year: compared French towns, and compared towns in Val-d'Oise.
| 2022 | 2023 | 2024 | 2025 | |
|---|---|---|---|---|
| Houses | €4,971/m² | €4,756/m² | €4,138/m² | €4,182/m² |
| Apartments | €3,566/m² | €3,263/m² | €3,388/m² | €3,235/m² |
A dash: fewer than 30 sales of that type that year.
DVF reaches back five and a half years: July 2021 to June 2026. The half years at each end are left out of the charts.
Sannois is the 22nd dearest of 76 towns in Val-d'Oise
Towns of 2,500 or more with 30+ sales, by median price per m²: Sannois is in the middle of the département’s towns.
Each links to that town’s property prices.
Property prices around Sannois
Cheaper per m² nearby: Franconville.
| Town | Miles | Median per m² | Sales, 3 years | 2022–25 |
|---|---|---|---|---|
| Sannois | — | €3,626/m² | 722 | −9.8% |
| Ermont | 1.1 | €3,975/m² | 764 | −9.9% |
| Saint-Gratien | 1.5 | €3,750/m² | 574 | −15% |
| Franconville | 1.6 | €3,182/m² | 1,257 | −2.1% |
| Eaubonne | 1.7 | €3,997/m² | 692 | −10% |
| Argenteuil | 1.8 | €3,409/m² | 2,348 | −10% |
| Le Plessis-Bouchard | 2 | €3,500/m² | 318 | −8% |
A dash: fewer than 30 sales, or no DVF file (Alsace-Moselle). Distances center to center.
Questions about property in Sannois
What is the average house price in Sannois?
The median price was €3,626/m² from July 2023 to June 2026, over 722 sales (houses: €4,256/m²; apartments: €3,246/m²). We give the median, the middle price, rather than the average, which a few large sales can pull up.
Are prices going up in Sannois?
The median per m² was €3,564/m² in 2025 against €3,656/m² in 2024 (−2.5%).
How many homes sell in Sannois a year?
268 houses and apartments sold in 2025.
Can I see individual sales or prices by street?
Not here. The decree that publishes France’s property sales (DVF) forbids putting them where search engines can index them, so we show medians and counts only, each built on 30 or more sales. The full file is on the government’s own site, app.dvf.etalab.gouv.fr.
Sources: DGFiP, DVF property sales (Etalab geolocated version), Jul 2023–Jun 2026 · INSEE, census 2023. Under the Licence Ouverte / Open Licence 2.0 (Etalab).
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.