Who to notify for an unsanitary dwelling?
An unsanitary home endangers the health, safety and dignity of its occupants. This page explains, step by step, who to contact, which online procedures to use, and how to track your case via the official platform demarches-simplifiees.fr.
In case of immediate danger (fall, electricity, fire, collapse), call 112 or 18 first.
Recognising the situation
- Severe dampness, mould, persistent condensation.
- Lack of water, heating or ventilation (faulty extractor / vents).
- Leaks, major cracks, risk of collapse.
- Accumulation of waste, presence of vermin/pests.
- Strong odours, sanitary and respiratory risks.
See also: Signs of an unsanitary dwelling
Authorities to notify (in order)
1) Town Hall — Hygiene Dept.
First contact to record the situation and start a local inspection.
2) ARS — Regional Health Agency
For health risks: damp, lead, mould, pests, indoor pollution.
3) Prefecture
May issue an unsanitary order, require works and temporary rehousing.
Landlord / Owner
Legal duty to provide a decent dwelling. Send a formal notice (registered letter) if needed.
Property manager / Syndic
For common areas (ventilation, water columns, roof) or building hazards.
Associations & ADIL
Free legal advice, help with your case and guidance to remedies and financial aid.
Online procedures via demarches-simplifiees.fr
The official platform allows a paperless file, document uploads, notifications and clear tracking.
Quick steps
- Create a user account (email address).
- Search “unsanitary housing report”.
- Fill in the form (attachments: photos, reports, exchanges with landlord…).
- Submit the file then follow the instruction (messages, requests).
- Receive the decision (measures, works, possible prefect’s order).
Need digital assistance? Visit a France Services office (free support).
Remedies if nothing happens
- Written follow-up to Town Hall / ARS (attach your file).
- Formal notice to the landlord / manager (registered letter).
- Referral to the Prefect or civil court (unfit housing procedure).
- Request temporary rehousing in case of an order (families, children, vulnerable people).
FAQ — Procedures & contacts
Which administrative procedures are available online?
How do I use demarches-simplifiees.fr?
Who should I contact first?
Can foreign residents use the platform?
Essential resources
Main guideCleaning unsanitary homes
Cleaning of unfit dwellings and extremely dirty apartments.
Read the article →
UnderstandAid & subsidies for unsanitary cleaning
Explanations about CAF, local authorities, town halls, insurance.
Read the article →
Heads-upBefore / After: rehabilitation examples
Real cases and photos showing Défi Clean’s effectiveness.
Read the article →
