Substandard or unfit housing: the tenant's rights in France
Substandard housing obliges the landlord to carry out works, and an unfitness order can suspend the rent. Fitness criteria, banned energy-poor homes, applying to the town hall and the family allowance fund, and rent reductions.
Persistent damp, no heating, a dangerous electrical installation: a home can stay let in that state for years. Yet the law imposes a minimum standard, and several levers exist. A lawyer reviews your situation in 20 minutes on Avocat20min.fr.
Substandard housing: the precise criteria
The decree of 30 January 2002 defines fitness for occupation. Substandard housing is a home that fails any of these criteria, and a landlord may not let it in that state.
- Floor area: at least 9 m² of living space and 2.20 m of ceiling height, or 20 m³ in volume.
- Physical safety: guardrails, safe staircases, compliant electrical and gas installations.
- Occupants' health: no water ingress, mould, accessible lead or damaged asbestos.
- Equipment: heating, drinking water, waste water drainage, kitchen and sanitary facilities.
- No pests, bedbugs included, since the law of 23 November 2018.
- Energy performance, with a consumption threshold not to be exceeded.
That last criterion has changed a great deal. Since 1 January 2025, a home rated G on the energy performance certificate counts as substandard, so it cannot be let. Class F follows on 1 January 2028, class E on 1 January 2034.
Unfitness, insalubrity and danger: three separate regimes
| Situation | Who records it | Main consequence |
|---|---|---|
| Substandard housing | The judge, on the tenant's application | Works, rent reduction |
| Insalubrity | Order of the prefect or the mayor | Rent suspended, rehousing |
| Danger | Safety order | Evacuation, works carried out by the authority |
Unfitness belongs to the rental contract, while insalubrity and danger belong to administrative policing. The two routes combine without difficulty.
Since the order of 16 September 2020, these powers sit together under building safety and health. An order suspends the rent from the first day of the month following its notification, and it requires the landlord to house or rehouse the occupants.
The steps, in order
Always start with a registered letter asking for the works, with a reasonable deadline. Attach dated photographs and, if possible, a report by an enforcement officer.
If nothing comes back, pull these three levers:
- The town hall, through its public health department, or the regional health agency. An inspector visits and may trigger an order.
- The family allowance fund, which withholds the housing benefit instead of paying it to the landlord while substandard housing is not put right.
- The departmental conciliation commission, free of charge, which brings both parties together within two months.
The departmental housing information agency guides you through these steps free of charge. Its written opinion often weighs in the discussion.
What the judge can order
The protection litigation judge decides in the last resort. Seized by application, without a compulsory lawyer, they hold wide powers over substandard housing:
- Ordering the works, with a daily penalty for delay.
- Reducing the rent in proportion to the nuisance, sometimes by half.
- Suspending the rent, or allowing it to be paid into escrow until the works are done.
- Awarding damages for the loss of enjoyment suffered.
- Terminating the lease at the landlord's fault, with no notice period for the tenant.
One rule deserves repeating: never stop paying the rent on your own initiative. That step exposes you to eviction proceedings, even where the property is in poor condition. Payment into escrow, by contrast, is asked of the judge.
The penalties a landlord faces
An owner letting substandard housing first loses the benefit of housing allowances. They then face administrative fines of up to €15,000 in towns that have introduced a letting permit.
Slum landlords face far heavier penalties: up to five years' imprisonment and a €150,000 fine, with possible confiscation of the property and a ban on buying other homes.
Finally, a landlord cannot serve notice to escape their obligations. A notice given in those circumstances can be challenged before the judge.
The tenant has duties too
Day-to-day upkeep stays with the tenant, such as replacing seals, sweeping the chimney or airing the rooms daily. Landlords often raise these failings to explain damp.
A joint inspection or an expert report settles the question. The judge then separates the structural cause, which falls on the owner, from misuse. That distinction also governs any deduction from the security deposit when you leave.
The tenant must also use the home peacefully. A noisy tenant faces action by the landlord, and possibly the termination of the lease.
When to consult a lawyer
A lawyer classifies the situation, chooses between the administrative and the judicial route, and quantifies the rent reduction. They act fast where the occupants' health is at stake. A property lawyer answers within 20 minutes. The official criteria sit on service-public.gouv.fr.
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