Disappearance of a Condominium: When the Union of All Lots Precludes a Claim for Reduction in Area

Imagine: you buy a detached house in Cassis, with a garden and a sea view. The notary gives you the deed of sale, and you discover that the property consists of two condominium lots that were merged before the sale. A few months later, you have it measured: the actual area is 10% less than stated. You want to obtain a reduction in price. But surprise: the seller objects that the condominium has disappeared, and that the claim for reduction is not possible. Is this legal?

This is precisely the question decided by the Court of Cassation in this judgment of 28 January 2009. A landmark decision that every owner, buyer or property professional should know. Because it goes to the heart of condominium law and the protection of buyers against errors in area.

In this article, I will tell the story behind this decision, explain the judges' reasoning, and above all give you practical advice to avoid this type of dispute. Whether you are in La Ciotat, Marseille or elsewhere, the principles are the same.

The Facts: A Story Like Many Others

Mr. X owns a property in Cassis, consisting of two houses. Originally, these two houses were two separate lots of a condominium: lot no. 1 (with an area of 57 m²) and lot no. 2 (24 m²). Before the sale, Mr. X merged these two lots in his hands, thus becoming the sole owner of all the lots of the condominium.

One day, he sells the two houses to a buyer, Mr. Y. The deed of sale mentions the areas of each lot. But after the sale, Mr. Y hires a surveyor and finds that the actual area of lot no. 1 is only 49 m², and that of lot no. 2 is 21 m². A difference of more than 8% on lot no. 1, which exceeds the 5% threshold giving right to a claim for reduction in price (Article 46 of the Law of 10 July 1965).

Mr. Y then sues Mr. X before the Tribunal de Grande Instance of Marseille to obtain a reduction in the sale price. But Mr. X defends himself by arguing that the condominium automatically disappeared when he became the sole owner of all lots. Consequently, the obligation to mention the area of each lot in the deed no longer existed, and the claim for reduction was unfounded.

The Court of Appeal of Aix-en-Provence rules in favour of the buyer, holding that the merging of lots does not prevent the claim for reduction. But the Court of Cassation quashes this judgment: it recalls that the union of all lots in the hands of the same owner automatically results in the disappearance of the condominium. Consequently, the provisions of Article 46 of the Law of 1965, which protect the buyer of a condominium lot, no longer apply. The claim for reduction is therefore inadmissible.

The Reasoning of the Court — Explained

To understand this decision, we must start from Article 46 of the Law of 10 July 1965. This article requires that, in any sale of a condominium lot, the deed must mention the area of the private part. If the actual area is more than 5% less than that stated, the buyer may demand a proportional reduction in price. This is an essential protection for buyers.

But this protection is attached to the concept of a condominium lot. Now, what is a condominium lot? It is a fraction of the building consisting of a private part and a share of common parts. Condominium arises as soon as several persons hold lots in the same building. And it disappears when all lots are united in the hands of a single owner. This is what is known as the disappearance of the condominium by operation of law.

In the case decided, Mr. X had become the sole owner of all lots before the sale. The condominium had therefore disappeared. When he sold the houses, he did not sell "condominium lots" but a single property. The obligation to mention the area of each lot no longer applied. The Court of Cassation states this clearly: "the union of all lots in the hands of the same owner automatically resulting in the disappearance of the condominium, a court of appeal cannot allow a claim for reduction based on Article 46 of the Law of 10 July 1965 while noting that the sold properties, consisting of two houses which originally formed two separate condominium lots, had been united before the sale in the hands of a single person."

However, note that this does not mean the buyer is without remedy. He can still bring an action based on fraud (dol) or latent defects, but not on the specific basis of Article 46. The burden of proof is then heavier.

What This Means for You — In Practice

This decision has very practical implications, whether you are an owner, buyer or property professional. Here is what you need to remember.

For the buyer: if you buy a property that was originally in condominium but was merged in the hands of a single seller, you cannot invoke Article 46 in case of an error in area. Your only protection is to have had a measurement taken before the sale. Concrete example: in La Ciotat, you buy a villa of 100 m² stated. After the sale, you discover it is 90 m². If the property was a condominium lot, you can claim a reduction in price. But if the seller had merged all lots and the condominium had disappeared, the claim is impossible. undefined, I have seen cases where buyers lost several thousand euros for failing to check the area before the sale.

For the seller: this decision protects you if you have merged all lots. You are no longer subject to the area guarantee of Article 46. But be careful: you remain liable in case of fraud or latent defect. If you deliberately hide an error in area, you risk damages.

For the notary: he must check whether the condominium still exists at the time of the sale. If all lots are merged, he must inform the buyer that Article 46 does not apply. He may also advise having a measurement carried out by a professional before signing.

For the co-owner: if you are in a condominium and wish to buy all lots to become the sole owner, know that the condominium will automatically disappear. You can then resell without area constraints.

Four Tips to Avoid This Type of Dispute

• Have the property measured before the sale: whether you are a seller or buyer, hire a surveyor to obtain a measurement certificate. This costs between €200 and €400, but saves you a much more costly dispute.
• Check the status of the property in the deed of sale: ask your notary to specify whether the property is sold as a condominium lot or as a single property. If the condominium has disappeared, state this clearly.
• If in doubt, include a guarantee clause: in the deed, you can provide that the seller guarantees the area, even if Article 46 does not apply. This contractually protects you.
• Consult a lawyer before buying a property that has been the subject of a merger of lots: a professional will advise you on the risks and precautions to take, especially if you are in the Marseille area where this case law is often invoked.

Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.

Further Analysis: Related Case Law and Developments

This decision of the Court of Cassation is part of consistent case law. Already, in a judgment of 13 December 2006 (No. 05-18.531), the Court had held that the merger of all lots results in the disappearance of the condominium, and that the rules of Article 46 no longer apply. The 2009 judgment confirms and clarifies this solution.

Conversely, some buyers have tried to circumvent this rule by invoking error as to the essential qualities of the property (Article 1110 of the Civil Code). But the courts are demanding: it must be proved that the area was a determining condition of consent, which is difficult.

The trend is therefore towards limited protection for the buyer in case of disappearance of the condominium. In the future, it would be desirable for the legislator to extend the measurement obligation to all immovable property, regardless of its nature. In the meantime, vigilance remains key.

Frequently Asked Questions

Can I cancel the sale if the area is more than 5% less? No, not on the basis of Article 46 if the condominium has disappeared. You can only claim a reduction in price, but only if you prove fraud or error as to a substantial quality.

What should I do if I discover an error in area after the sale? Consult a lawyer promptly. The time limit to bring an action is 5 years from the sale (general limitation period). But the longer you wait, the harder it will be to prove fraud.

Can a notary be held liable? Yes, if he did not inform the buyer of the absence of protection under Article 46. You can bring a claim for professional negligence.

Does this case law apply to the sale of a single lot? Yes, as long as the condominium disappeared before the sale. Whether the property is a detached house or an apartment, the principle is the same.

How do I know if the condominium has disappeared? Check the number of lots in the condominium regulations and the identity of the owners. If a single owner holds all lots, the condominium no longer exists.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) can save you months of proceedings — and often much more. Book an appointment →