Reference decision: cc • No. 72-11.655 • 1973-07-04 • View decision →
Imagine: you buy a plot of land in Antibes, on the heights of Cap d'Antibes. The seller shows you a plan, but without a precise Bornage et cadastre">cadastral reference. You sign the deed, you build a small villa. Ten years later, a neighbour claims part of your garden, asserting that the land does not correspond to what you bought. Panic on board! How can you prove that you are indeed the owner?
This situation, I have seen it dozens of times in my practice in Grasse. The question is always the same: can a deed that does not perfectly describe the property still serve as a title of ownership? The answer is one word: yes, provided you are in good faith. This is exactly what the Court of Cassation decided in a judgment of July 4, 1973, which remains a reference for all owners.
In short, this decision allows a person who has an exchange deed (or a purchase deed) to claim ownership of land by shortened usucapion (acquisitive prescription in 10 years) even if the deed does not contain a cadastral reference, provided the deed is regular and the purchaser was in good faith at the time of the exchange. But attention: good faith is presumed, but it can be challenged. Let's decode this landmark judgment together.
The facts: a story like any other day
In this case, the Y... siblings claimed ownership of plots located in... (the decision does not specify the location, but let's imagine Antibes). They relied on an exchange deed entered into with a certain A..., the regularity of which was not disputed. The problem? The deed did not mention any cadastral reference (parcel number on the cadastre). The plots were simply described as "a long narrow plot in the shape of a capital L, bordering on two sides the plot of the sale." Not very precise, you will agree.
On the other side, the Z... siblings (the defendants) disputed this, asserting that the claimed plots did not correspond to those in the exchange deed. They even had a bailiff note that the disputed land did not match the description. The court of first instance ruled in their favour, dismissing the Y... siblings' claim.
But the court of appeal reversed the decision: it held that the exchange deed constituted a just title within the meaning of Article 2265 of the Civil Code (now Article 2272) for shortened usucapion. Indeed, the court found that, despite the absence of a cadastral reference, the land which was the subject of the deed corresponded to that on which usucapion was invoked. And above all, the good faith of the Y... siblings at the time of the exchange had not been denied (contested).
The Court of Cassation upheld this reasoning. In other words, even an imperfect description can suffice if it allows the property to be identified, and if the purchaser was unaware of the defects in the title. A victory for good-faith owners!
The reasoning of the court — decoded
To understand the judgment, you must first know the mechanism of shortened usucapion. Former Article 2265 of the Civil Code provided that a person who acquires property in good faith by a just title (sale deed, exchange, gift...) can become owner by prescription in 10 years, instead of 30 years for ordinary usucapion. The "just title" is a legal act which, in principle, transfers ownership, but which is tainted by a defect (for example, the seller was not the owner). "Good faith" is the legitimate belief of the purchaser that his seller was indeed the owner.
In this case, the question was: can an exchange deed without a cadastral reference be a just title? The trial judges (court of appeal) answered yes, because they considered that the deed allowed the identification of the land despite the absence of a cadastral reference. They relied on the physical description ("long and narrow in the shape of an L") and on the fact that the parties had executed the exchange without dispute. The Court of Cassation approved this reasoning: it is a sovereign assessment of the trial judges.
What few people know is that the Court of Cassation also insisted on good faith. The Y... siblings had exchanged the land with A... without knowing that the latter might not be the owner. Their good faith not having been contested, they could benefit from shortened prescription. This shows that good faith is presumed until proven otherwise.
But what exactly does this change? This means that even if your sale deed does not mention the parcel number, you can still claim ownership after 10 years of peaceful, continuous and unequivocal possession. However, note: this decision dates from 1973, but it remains relevant. The Court of Cassation has confirmed this principle in more recent judgments (e.g., Civ. 3e, 15 January 2003, No. 01-02.163).
What this changes for you — practically
For landlord owners in Mandelieu-La Napoule, this decision is a lifeline. Imagine you bought a plot of land in 2010 without a cadastral reference, and in 2023 a neighbour claims a part. If you have possessed the land continuously, peacefully and publicly for 10 years, and if you were in good faith at the time of purchase (you were unaware that the seller was not the owner), you can invoke shortened usucapion to have your right recognised.
For tenants, the situation is different. A tenant's possession is not useful for usucapion, because it is precarious (they possess on behalf of the owner). However, if you are a purchaser of a leased property, you can benefit from the prescription if you meet the conditions.
For real estate professionals (notaries, agents), this decision reminds of the importance of describing properties precisely in deeds. But if an imperfect description remains, case law allows it to be corrected by possession.
Concretely, if you are in this situation, you must prove two things: (1) that the exchange or sale deed constitutes a just title (even without a cadastral reference) and (2) that you were in good faith at the time of acquisition. Proof of possession may be made by witness statements, invoices for works, neighbour attestations, etc. Note: the 10-year period runs from the deed, and it may be interrupted by legal action.
A concrete example: in Mandelieu, a plot of 500 m² is worth around €200,000. Without this decision, an owner who had lost their title could find themselves without a right. Thanks to shortened usucapion, they can secure their situation without lengthy proceedings.
Four tips to avoid this type of dispute
- Always have cadastral references checked before buying. Ask your notary to compare the cadastral plan with the description in the deed. If doubts persist, call a surveyor.
- Keep all deeds and correspondence. In case of a dispute, each document can serve to prove your good faith. Also keep evidence of possession: invoices for works, land tax receipts, photos.
- Occupy the land visibly and continuously. Usucapion requires peaceful and unequivocal possession. If you leave the land abandoned, you risk losing the benefit of prescription.
- Consult a lawyer at the first signs of challenge. A simple letter from a neighbour can interrupt the prescription. Do not let it drag on. A quick consultation can avoid years of proceedings.
Further reading: related case law and developments
This 1973 decision is part of a consistent line of the Court of Cassation. For example, in a judgment of 15 January 2003 (No. 01-02.163), the Third Civil Chamber recalled that "the just title may result from a sale deed even if it does not precisely designate the parcel, provided the property is identifiable." The trend is therefore favourable to good-faith possessors.
But attention: good faith must exist at the time of acquisition. If you discover later that the seller was not the owner, this does not affect the initial good faith. However, if you were in bad faith from the outset (for example, you knew the land belonged to someone else), shortened usucapion does not apply.
A recent development: the law of 17 June 2008 reformed prescription, but the principle of shortened usucapion (10 years) was retained in Article 2272 of the Civil Code. Case law continues to apply the same criteria.
In practice: what to do
FAQ:
- Can I use an exchange deed without a cadastre to prove my ownership? Yes, if the deed allows identification of the property and you are in good faith.
- What is the time limit for prescription? 10 years from the deed, or 30 years without a just title.
- What if a neighbour contests my possession? Do not delay: consult a lawyer to assess your evidence and consider an action for recognition of ownership.
- Is good faith presumed? Yes, until proven otherwise. It is for the challenger to prove your bad faith.
Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.
Checklist:
- Gather all deeds (sale, exchange, gift).
- List evidence of possession (invoices, taxes, witnesses).
- Check if you are in good faith (were you aware of a defect?).
- Consult a lawyer specialising in property law.
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 →

