Tenants: rent reduction for mold and damp in France

Tenants facing damp or mold often wonder whether they can obtain a rent reduction in France. This guide explains, in simple terms, tenant rights, the landlord's obligations and practical steps: document the problem, notify the landlord, keep evidence, request repairs and, if necessary, refer the matter to the departmental conciliation commission or the judicial court. The information is based on the French regulations applicable to residential leases and common administrative procedures. The aim is to give you a clear action plan to protect your health and your rights without legal jargon.

Damp, mold: your rights

In France, the landlord must deliver a property in good repair and ensure the decency of the dwelling. If damp or mold affects habitability, you can request repairs or a rent reduction depending on severity and responsibility identified ^[1]. Keep all evidence (photos, exchanges, medical certificates) and note incident dates.

Prepare a solid file

• Dates photos and videos showing damp or mold.
• Letters and emails sent to the landlord or agency, with proof of dispatch.
• Quotes or technical reports when possible to estimate repairs.
• Medical contacts or statements if health is affected.

How to request a rent reduction

Start by informing the landlord in writing and asking for the necessary repairs. If the landlord does not respond, send a formal notice by registered mail specifying a reasonable time to act. If the situation continues, you can request a proportional rent reduction or have it assessed by an expert, then refer to the departmental conciliation commission (CDC) or, as a last resort, the judicial court ^[3].

1. Contact the landlord to report the issue and request immediate repair.
2. Send a registered letter with photo and description, asking for a specific deadline for repair.
3. Gather evidence, quotes and any expert reports.
4. Refer to the CDC to attempt conciliation, then to the judicial court if necessary.

Calculating the rent reduction

The reduction is calculated on a case-by-case basis: it depends on the inconvenience suffered, the affected area and the duration. Judges often assess a proportional decrease in rent corresponding to the reduced enjoyment of the dwelling. An expert report can help quantify the damage.

FAQ

Can a tenant obtain a rent reduction?

Yes, if damp or mold reduces the use of the dwelling and the landlord is responsible or does not act after notification. The problem must be documented and formal steps followed.

Who pays for repairs?

The landlord is responsible for repairs related to decency and habitability, unless the damage is caused by the tenant or a third party. The distinction depends on established causes.

What if the landlord refuses?

You can refer the matter to the departmental conciliation commission (CDC) for mediation, then to the judicial court if conciliation fails ^[3].

How to

1. Document the problem with dated photos and notes.
2. Notify the landlord promptly and request repair.
3. Send a formal notice by registered mail if there is no response.
4. Obtain a technical diagnosis if necessary.
5. Refer to the CDC then the judicial court as a last resort.

Key takeaways

• Systematically document damp and its effects.
• Alert the landlord in writing before any contentious step.
• Conciliation is a free and recommended step before going to court.

Help and support

• See rules on inventory reports and repairs.
• Information on the departmental conciliation commission.
• Legislative texts: Law n°89-462 and applicable articles.

1. [1] Légifrance — Loi n° 89-462 du 6 juillet 1989
2. [2] Service-public.fr — Inventory reports and obligations
3. [3] Service-public.fr — Departmental conciliation commission