Buying a house in Ermont
29,489 inhabitants, Val-d’Oise (95), Île-de-France.
Median price in Ermont over five years of DVF: €4,762/m² for houses (547 sales) and €3,750/m² for flats (955 sales). That is 46% above the median of the municipalities of Val-d’Oise. Property tax rate on buildings in 2025: 40.47% (municipality and intercommunality), plus a household waste tax of 7.52%. 11% above the department median (36.6%). Of 7,798 homes in Ermont with an energy certificate, 641 are rated F or G (8.2%). Home burglaries recorded in 2025: 6.2 per 1,000 homes, against 6 in the department and 5.6 in France. Among the municipalities of Val-d’Oise, Ermont ranks 4th of 175 for the median house price, 31st of 118 for flat prices, 51st of 183 for the property tax rate, 117th of 162 for the share of homes rated F or G. INSEE code 95219, postcode 95120. Nearest municipality: Eaubonne, 1.5 km away.
Your address in Ermont
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Ermont in figures
| Indicator | Ermont | Val-d'Oise | France |
|---|---|---|---|
| Population | 29,489 | 1,281,653 | - |
| House, median price | €4,762/m² | €3,684/m² | - |
| Flat, median price | €3,750/m² | €3,415/m² | - |
| Property tax (buildings), 2025 rate | 40.47% | 36.6% (median) | 40.3% (median) |
| Household waste tax (TEOM) | 7.52% | - | - |
| Homes rated F or G | 8.2% | 12.5% (median) | 15.4% (median) |
| Burglaries / 1,000 homes | 6.2 | 6 | 5.6 |
| Physical violence outside family / 1,000 | 2.8 | 3.2 | 3.2 |
| Criminal damage / 1,000 | 6.5 | 7.9 | 7.9 |
| Transfer duties (department) | 5% | 5% | - |
Questions
What is the price per m² in Ermont?
Median price in Ermont over five years of DVF: €4,762/m² for houses (547 sales) and €3,750/m² for flats (955 sales). That is 46% above the median of the municipalities of Val-d’Oise.
What is the property tax rate in Ermont?
Property tax rate on buildings in 2025: 40.47% (municipality and intercommunality), plus a household waste tax of 7.52%. 11% above the department median (36.6%).
Where does Ermont stand in its department?
Among the municipalities of Val-d’Oise, Ermont ranks 4th of 175 for the median house price, 31st of 118 for flat prices, 51st of 183 for the property tax rate, 117th of 162 for the share of homes rated F or G.
How many burglaries in Ermont?
Home burglaries recorded in 2025: 6.2 per 1,000 homes, against 6 in the department and 5.6 in France.
Municipalities near Ermont
| Municipality | House, median | Property tax | Distance |
|---|---|---|---|
| Eaubonne | €4,718/m² | 41.47% | 1.5 km |
| Sannois | €4,551/m² | 45.07% | 1.9 km |
| Le Plessis-Bouchard | €4,212/m² | 41.19% | 2.3 km |
| Franconville | €4,262/m² | 42.56% | 2.5 km |
| Margency | €4,068/m² | 41.67% | 2.7 km |
| Saint-Gratien | €5,022/m² | 46.33% | 3.1 km |
Read more: every municipality in Val-d’Oise, the notary fees calculator, what to check before buying.
Sources: INSEE, DVF, REI, SSMSI, ADEME, DGFiP.
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