Reference Decision: cc • No. 95-20.176 • 1998-06-10 • View the decision →
Imagine: you own a flat in Grasse, let since 1990 to a long-standing tenant. The rent, set at €500 per month, is capped because the property was financed by a special loan from Crédit Foncier de France. You check the reference INSEE rent index (IRL) and see it has increased by 15% since the start. You think: "I will revise the rent by applying the index, it's my right." Wrong. The Court of Cassation, in a judgment of 10 June 1998, put an end to that reasoning. An analysis of a decision that still catches out many landlords.
The question every owner asks: can I increase the rent each year in line with inflation? The answer is no when the rent is capped by a special statute. Article 45 of the Law of 23 December 1986 only concerns the maximum permitted rent, not the rent actually paid. In other words, the landlord cannot use the index to increase the actual rent of a capped amount. They must wait for the lease renewal and comply with strict conditions.
This decision, handed down more than twenty-five years ago, remains highly relevant for owners of housing formerly financed by Crédit Foncier. In Sophia-Antipolis, where many 1980s residences exist, many are still unaware of this rule. So, what should you do if you are affected? Follow the guide.
The Facts: A Story Like Many Others
Mr Z, owner of a flat in Grasse, has let it to Ms Y since 1987. The initial rent is €400 per month, capped because the property was built with a special loan from Crédit Foncier de France. In 1994, Mr Z decides to apply the annual revision according to the INSEE construction cost index. He sends an addendum to his tenant, who refuses. The landlord then takes the matter to the tribunal d'instance of Grasse to enforce his right to the increase.
The tribunal rules in his favour at first instance: it considers that Article 45 of the Law of 23 December 1986 allows the actual rent to be revised according to the index. Ms Y appeals. The Court of Appeal of Aix-en-Provence quashes this judgment in 1995: it holds that Article 45 only refers to the capped rent, not the actual rent. Mr Z appeals to the Court of Cassation.
The Court of Cassation, in its judgment of 10 June 1998 (No. 95-20.176), upholds the position of the Court of Appeal. It states that Article 45 of the Law of 23 December 1986 is not intended to update the actual rent according to the INSEE index, but only to determine the maximum permitted rent. Consequently, the landlord can only increase the rent at the end of each renewal period, subject to the formal and substantive conditions set out in Article 21 of the same Law. What few people know is that this rule still applies to current contracts.
The Court's Reasoning — Analysed
The Court of Cassation relies on a strict interpretation of the statutes. Article 45 of the Law of 23 December 1986 (now Article L. 351-2 of the Code de la construction et de l'habitation) provides that "the capped rents provided for in leases benefiting from special construction loans from Crédit Foncier de France are revised in relation to the original capped rent according to the INSEE construction cost index." The Court deduces that this revision only concerns the capped rent, i.e., the maximum amount the landlord can demand, and not the rent actually paid.
In other words, if the actual rent is below the cap (which is often the case), the index cannot be used to catch it up. The landlord must follow the lease renewal procedure set out in Article 21 of the same Law (now Article L. 351-3). This procedure requires six months' notice before the end of the contract, a notice to quit or an offer of renewal with a new rent, and compliance with the formal conditions of Article 14 (notification by registered letter with acknowledgement of receipt).
The decision confirms consistent case law: derogatory statutes (such as those protecting tenants of subsidised housing) are interpreted restrictively. The judges reject the landlord's argument that the index is an automatic revision tool. undefined, I have encountered cases where landlords had applied improper increases for years and found themselves having to repay substantial sums. However, note: this rule only applies to housing financed by special loans from Crédit Foncier de France (state-subsidised loans). For other leases, annual revision by the IRL index remains possible if the contract so provides.
What This Means for You — In Practice
For the landlord: You cannot increase the rent each year according to the INSEE index. You must wait for the lease renewal (every three years for an empty residential lease, or at each triennial date). Example: in Sophia-Antipolis, a capped rent of €600 per month can only be raised to €650 if you give six months' notice and serve a notice to quit with an offer of renewal. If you apply an increase without following these formalities, the tenant can demand repayment of the sums overpaid, with interest.
For the tenant: You are protected. If your landlord tries to apply an annual revision based on the index, you can refuse. Check your contract: if the rent is capped (mention "Crédit Foncier loan" or "1986 Law"), an increase is only possible at renewal. In case of dispute, you can refer the matter to the departmental conciliation commission or the judicial court.
For the purchaser of a building: When you buy a let property, check whether the rent is capped. If so, past increases must be justified. If the seller applied improper revisions, the purchaser may be liable to repay them (as a successor in title).
Worked example: Capped rent €500, actual rent €400. The landlord applies a 2% increase each year for 5 years = €40 cumulative increase. The tenant challenges: the landlord must repay €40 x 60 months = €2,400, plus interest. A sum that can quickly mount up.
Four Tips to Avoid This Type of Dispute
- Check the status of your property: Consult the title deed or loan offer to see if the property was financed by a special loan from Crédit Foncier de France. If so, the rent is capped and subject to the strict rules of the 1986 Law.
- Do not confuse revision and renewal: Annual revision by the IRL index is only possible for free-market rents. For a capped rent, only the renewal procedure (6 months' notice, notice to quit, offer of new rent) allows an increase.
- Comply with formalities: The notice to quit or offer of renewal must be served by registered letter with acknowledgement of receipt or handed over in person against a signed receipt. A simple email is not enough.
- Consult a lawyer lawyer before acting: A procedural error can be costly. In Grasse, Maître Zakine can help you draft documents in line with the case law.
Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.
Further Reading: Related Case Law and Developments
This decision is part of a series of Court of Cassation judgments limiting the possibilities for increasing capped rents. For example, the judgment of 4 February 1998 (No. 95-21.403) already held that the revision of the capped rent could not be retroactive. The trend is consistent: judges protect the tenant against non-compliant increases.
Since 1998, the law has evolved: the ALUR Law of 2014 regulated rents in high-demand areas, but housing financed by Crédit Foncier remains subject to its specific regime. Today, litigation often concerns limitation periods: the tenant can claim repayment of improper increases within the 5-year limit (Article 2224 of the Civil Code).
What does this case law mean for the future? It reminds us that the right to housing prevails over contractual freedom. Landlords must be vigilant: even a minor increase, if irregular, can be annulled years later.
Frequently Asked Questions
Can I revise the rent if my contract provides for it? Yes, but only if the contract is not capped. Check for the mention "Crédit Foncier loan" in the lease.
How do I know if my rent is capped? Look at the sale deed or the loan. You can also ask the ADIL (Agence départementale d'information sur le logement) of Alpes-Maritimes.
What should I do if my landlord has applied an improper increase? Send them a registered letter with acknowledgement of receipt to challenge it and demand repayment. If they refuse, take the case to the judicial court of Grasse.
Is there a time limit to act? Yes, 5 years from each overpayment. Do not delay.
Does this rule apply to commercial leases? No, it only concerns residential leases subject to the 1986 Law.
Are you in a similar situation? A 30-minute initial consultation with Maître Zakine (€45) may save you months of litigation — and often much more. Book an appointment →
