Department 78 — property sales (DVF data)
Population: 2,242 inhabitants (+11.9% between 2013 and 2023)
Rental yield in Mézy-sur-Seine →
Estimated asking rents — "Carte des loyers" 2025 (French Ministry of Ecological Transition). Gross yield = annual rent / median sale price per sqm.
| Rate ‰ | France | |
|---|---|---|
| Vandalism | 4.5 | 7.9 |
Source: SSMSI, French Ministry of the Interior. Offences recorded by police and gendarmerie, per 1,000 inhabitants — unreported offences are not included.
Energy sieves (F+G): 14.7% (France: 9.9%)
| Label | Share |
|---|---|
| A | 5.5% |
| B | 9.2% |
| C | 22.7% |
| D | 24.8% |
| E | 23.0% |
| F | 9.8% |
| G | 4.9% |
Source: ADEME (2026), 326 diagnostics performed since July 2021 — share of diagnosed dwellings, not a census of the stock. G banned from rental since 2025, F in 2028, E in 2034.