The amounts
| Offence | Maximum fine |
|---|---|
| Holiday letting without change of use | Up to €100,000 per property |
| False declaration | Up to €80,000 |
| Letting without a registration number (since May 2026) | Up to €10,000 |
| False registration number or declaration | Up to €20,000 |
| Non-compliant DPE, on inspection | Up to €5,000 per unit, €100 per day penalty |
Sources: Métropole FAQ, Tourism Code (art. L324-1-1) and the 2025 ministry guide. Civil fines are heard by the Nice judicial court. The property must also be returned to residential use, and the authorisation can be revoked for repeated nuisance.
How offences are detected
- Cross-checking online listings with registration numbers and authorisations.
- Platforms reporting the number of nights let.
- Reports from neighbours or building managers.
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