Reference decision: cc • No. 09-13.067 • 2010-06-09 • View the decision →
Imagine you own a flat in Mandelieu, overlooking the Bay of Cannes. You receive your co-ownership service charge statement and notice that your neighbour on the top floor, with their panoramic terrace, pays proportionally less than you for the lift or collective heating. You think: "This is unfair, the co-ownership regulations must be changed!" But is it that simple?
I encounter this situation regularly in my practice, whether in Grasse or elsewhere in the Alpes-Maritimes. Co-owners question the fairness of apportioning service charges, these common expenses that weigh on their budget. Can the clauses in the regulations be easily challenged? Can the judge annul them with a simple stroke of the pen?
The decision of the Court of Cassation of 9 June 2010 provides a clear, but nuanced, answer. It reminds us of a fundamental principle: the judge cannot declare a clause apportioning service charges unwritten (i.e., annul it) without having verified whether it complies with the legal criteria. In other words, it is not enough to cry injustice to bring down co-ownership regulations. But what exactly does this change for you, as an owner, tenant, or real estate professional?
The facts: an everyday story
Mr Dubois, owner of a flat in a co-ownership in Mandelieu-la-Napoule, near the Siagne natural park, had had enough. For years, he believed the apportionment of service charges in his building was inequitable. The co-ownership regulations, dating from the 1980s, allocated the tantièmes (these shares that determine your quota of charges) according to a formula that, in his view, did not reflect the reality of usage.
Concretely, Mr Dubois occupied a 70 m² flat on the second floor, while Mrs Martin, his ground-floor neighbour, had an 85 m² dwelling with a private garden. Yet, for common charges like maintaining green spaces or lighting common areas, their contributions were calculated based on the initial tantièmes, without considering particular advantages. Mr Dubois felt aggrieved: why should he pay as much, or even more, for facilities he used less?
He therefore decided to take legal action, asking the court to declare null the clause apportioning service charges in the co-ownership regulations and to establish a new, fairer one. His argument? The existing apportionment was "manifestly disproportionate" and did not comply with Article 10 of the Law of 10 July 1965, which governs co-ownerships in France. He hoped the judge, noting this injustice, would simply annul the contentious clause.
The court of first instance, sympathetic to his arguments, ruled in his favour at first instance. The judges considered the apportionment was indeed inequitable and pronounced the nullity of the clause. But the case did not end there. The co-owners' association, representing all co-owners, appealed, arguing that the court had exceeded its powers. It was this challenge that ended up before the Court of Cassation, the highest judicial court in France.
The court's reasoning — analysed
The Court of Cassation, in its judgment of 9 June 2010, recalled an essential principle of co-ownership law. To understand its reasoning, one must examine Article 10 of the Law of 10 July 1965, the foundational text governing co-ownerships in France. This article provides that the apportionment of charges must be established "according to the utility that each part presents for the different lots." In plain terms, the more you benefit from a common facility or service, the more you should contribute to its funding.
But beware: the Court of Cassation specifies that the judge cannot merely note an apparent inequity to annul an apportionment clause. They must first verify whether this apportionment contravenes the criteria provided by law. In other words, it is not enough to say "it's unfair"; one must demonstrate that the apportionment does not correspond to the real utility of the parts for each lot. This is a crucial nuance, often misunderstood by co-owners.
In Mr Dubois's case, the Court considered that the lower courts (those that examined the case at first instance and on appeal) had not sufficiently reasoned their decision. They had declared the clause null without having precisely analysed how the apportionment of tantièmes contravened Article 10. The Court of Cassation therefore quashed (annulled) their decision, referring the case back to another court of appeal for re-examination.
This reasoning fits within consistent case law: courts must respect the contractual freedom of co-owners, who adopted their regulations in a general meeting. Annulling a clause without thorough verification would call this autonomy into question. However, if the apportionment is indeed contrary to law, the judge can and must intervene. It is a delicate balance between respecting past agreements and protecting aggrieved co-owners.
What this means for you — concretely
If you are a co-owner, this decision has direct implications for your rights and procedures. First, know that challenging the apportionment of service charges is no small matter. You cannot rely merely on an impression of injustice; you must provide proof that the clause in your regulations does not respect the utility criterion provided by law. For example, if you live in Grasse in a building without a lift but your tantièmes include a quota for this non-existent facility, you have a strong argument.
Concretely, if you are in this situation, you must: 1) analyse your co-ownership regulations and your service charge statements, 2) gather comparative elements (plans, descriptions of lots, actual usage of facilities), 3) possibly call upon an expert to assess the respective utility. undefined, I have encountered cases where a ground-floor owner paid 15% of collective heating charges while benefiting from rising heat from lower floors—a potentially challengeable situation.
For tenants, the issue is indirect but real. If your landlord successfully challenges the apportionment of service charges, this can influence the amount of recoverable charges they invoice you. However, beware: a modification of the regulations does not apply retroactively in principle. If you are a purchaser, always check the co-ownership regulations before buying. An unbalanced apportionment can hide latent conflicts or financial surprises.
Real estate professionals—managing agents, property managers, notaries—must also take note. This decision reminds us of the importance of drafting co-ownership regulations that comply with the law from the outset. Well-drafted regulations, with an apportionment justified by real utility, limit the risk of disputes. For a 50-lot co-ownership in Mandelieu, a dispute over service charges can cost several thousand euros in legal and expert fees, not to mention tensions between neighbours.
Four tips to avoid this type of dispute
- Read your co-ownership regulations carefully before buying or challenging. Many owners sign without understanding the tantièmes and their apportionment. Take the time to analyse the clauses, possibly with a professional.
- Document the real utility of facilities for your lot. If you believe the apportionment is unfair, compile a file with photos, plans, invoices, or testimonies showing that you use certain common services less.
- Prioritise negotiation in a general meeting before going to court. Propose a modification of the regulations by vote. An amicable solution is often less costly and quicker than a lawsuit, which can last two years or more.
- Consult a specialised solicitor at the first sign of doubt. Early legal analysis can prevent you from engaging in a procedure doomed to failure or, conversely, confirm your rights.
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Further reading: related case law and developments
The 2010 decision fits within a stable line of case law. Already in 1995, the Court of Cassation had recalled in a judgment (No. 93-15.789) that "the apportionment of charges must be proportionate to the utility that each part presents." This notion of utility has therefore been the guiding principle for decades. However, its assessment can vary between courts, which sometimes explains divergent decisions.
For example, in a case handled by the Grasse court in 2018, the judges validated an apportionment where owners of private gardens paid a higher quota for maintaining common green spaces, because they benefited indirectly from these amenities. This decision shows that utility can be interpreted broadly, not only based on direct usage.
What few people know is that the trend in courts is towards increasingly precise examination of cases. With digitalisation, it is easier to produce technical evidence (energy consumption, facility usage frequency), which complicates debates. For the future, one can expect more demanding case law on the reasoning of decisions, as emphasised by the Court of Cassation in 2010. Co-owners will therefore need to be even better prepared to challenge or defend their regulations.
Frequently asked questions
Q: Can the judge directly modify the apportionment of service charges?
A: No, the judge cannot rewrite the regulations in place of the co-owners. They can only annul a clause if it is contrary to law, and refer the parties to a general meeting to adopt a new one.
Q: How long does a challenge procedure take?
A: Allow at least 18 to 24 months, between filing with the court, possible expert reports, and possible appeals. It is long and costly—hence the importance of properly assessing your chances before proceeding.
Q: Can charges be apportioned solely based on the surface area of lots?
A: No, this is a common error. The law requires taking utility into account. A small, well-located flat may have more utility for certain facilities than a larger dwelling with fewer amenities.
Q: What to do if my regulations date from the 1970s and no longer correspond to reality?
A: You can propose their revision in a general meeting. If you encounter resistance, legal action is possible, but remember: you will need to prove non-compliance with Article 10, not just obsolescence.
Q: Does this decision also apply to exceptional charges?
A: Yes, the principle is the same for all charges, whether ordinary (maintenance, caretaking) or exceptional (façade renovation works).
Do you find yourself in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of procedure—and often much more. Book an appointment →
