Party Wall and Ownership of the Soil: A Court of Cassation Decision Clarifying Rights over a Disputed Corridor

Imagine the scene: you own a lovely house in Brignoles, with a small external corridor separating your property from your neighbour's. You have always used this corridor to access your garage. But one day, your neighbour, a developer, decides to build a block of flats and forbids you to pass. "This corridor is mine," he tells you. You search your archives and find an old deed of sale, unpublished, by which your predecessor purchased the party wall of the wall bordering this corridor. But is this enough to prove that the soil of the corridor belongs to you? This is precisely the question that the Court of Cassation decided in a judgment of 18 December 1979.

This decision, often overlooked, is nevertheless fundamental for all owners, tenants and real estate professionals. It reminds us that an unpublished deed may sometimes be relied upon to establish a right of ownership, provided that it does not create a new right but merely records a pre-existing right. In short, if your title deed mentions a right over a wall or soil, even without publication, it can be used in court to defend you.

But what exactly does this change? In other words, is it absolutely necessary to publish all deeds to be protected? The answer is nuanced, and this judgment gives us keys to understanding the limits of land registration. However, beware: the rule is not absolute, and each situation merits a detailed analysis.

The Facts: A Story That Happens Every Day

In this case, two buildings were separated by a corridor. On one side, the Caussade building; on the other, a building belonging to a certain Féraud. The owner of the Caussade building, Mr Z..., wished to raise his house. To do so, he needed to acquire the party wall of the wall that separated his building from the disputed corridor. In 1959, he purchased this party wall from Dame A..., wife of Y..., who was the predecessor in title of the owner of the other building, a certain Carrié. The deed of sale, unpublished, stipulated that Féraud could in no way rely on this acquisition to claim any right over the corridor, which remained the property of Carrié.

Later, a dispute arose between the owners of the two buildings: who owned the soil of the corridor? The Court of Appeal, seised of the dispute, relied on this unpublished deed of sale to decide that the soil of the corridor was the property of Carrié. Indeed, the deed recognised that the corridor belonged to Carrié's predecessor, and that the acquisition of the party wall conferred no right over this corridor. The owner of the Caussade building appealed to the Court of Cassation, arguing that the Court of Appeal should not have relied on an unpublished deed.

But the Court of Cassation dismissed the appeal. It held that the deed, although unpublished, was valid to decide the dispute because it did not relate to a transfer or creation of real rights subject to publication, but merely recorded a pre-existing right of ownership over the soil of the corridor. In other words, the deed did not need to be published to be enforceable against the parties and third parties, since it did not create a new right.

What few people know is that this case could have taken place in Saint-Raphaël or Toulon: how many owners have old, unpublished title deeds that could be relied upon in court? undefined, I have come across cases where deeds of sale dating back more than 50 years, found in attics, have allowed a right of way or an easement to be recognised. The key is to demonstrate that the deed does not create a new right, but merely records an existing situation.

The Reasoning of the Court — Analysed

The Court of Cassation based its decision on the principle of enforceability of unpublished deeds when they do not relate to real rights subject to publication. In French law, land registration (registration in the land registry) is compulsory for deeds transferring ownership, creating easements or mortgages, etc. (Article 28 of the Decree of 4 January 1955). But not all deeds are subject to this formality. In this case, the deed of sale of the party wall was a deed transferring ownership of the wall, but it did not relate to the soil of the corridor: it merely recorded that the soil already belonged to Carrié. Therefore, this deed could be used as proof of Carrié's right of ownership, without having been published.

The judges thus distinguished two situations: on the one hand, a deed that creates a real right (for example, a sale or an easement) must be published to be enforceable against third parties; on the other hand, a deed that records a pre-existing right (for example, a deed of notoriety or a recognition of ownership) may be invoked even without publication. This distinction is fundamental: it allows old, often unpublished rights to be secured, which may be proven by other means.

The arguments of the appellant were simple: the deed not having been published, it could not be relied upon by the Court of Appeal. But the Court of Cassation held that publication was not necessary because the deed did not constitute a transfer of ownership of the soil. In reality, the deed of sale of the party wall was ancillary to the principal right over the soil, and it did not change the ownership of that soil. Thus, the Court of Appeal was right to rely on this deed to determine the ownership of the corridor.

In other words, if you have a document that establishes that you are the owner of a property, even if it is not published, you can rely on it in court, provided that this document does not create a new right but merely records a prior situation. However, beware: this solution only applies if the pre-existing right is certain and undisputed. If the deed is ambiguous or contradicted by other elements, the judges may disregard its probative value.

What This Changes for You — Practically

For owners: if you have an old deed of sale, a will or a recognition of ownership that is unpublished, do not throw it away! It can serve to prove your right, especially if it is a deed recording an existing situation (for example, a deed of partition, a gift, or a deed of notoriety). For example, in Saint-Raphaël, an owner of a landlocked plot obtained a right of way thanks to a deed from 1930 found in family archives, although unpublished. Conversely, if you buy a property today, always have the deed published to be protected against claims by third parties.

For tenants: this decision concerns you indirectly. If your landlord rents you a property whose title deed is not published, this does not invalidate your lease, but you must check that your rent is paid to the right person. In case of a dispute over the ownership of the property, you could be involved. It is better to ask to see the published title deed or, failing that, an extract from the land registry.

For buyers: be careful. If you buy a property, require a published title deed. But if the seller presents you with an unpublished deed, do not systematically reject the transaction: it may be an old right recorded by a deed not subject to publication. In this case, consult a lawyer or notary to verify the validity of the deed and any potential risks. For example, if you buy a house in Brignoles with an unpublished right of way, this right could be challenged by the neighbour. A deed recording this right, even if unpublished, could be relied upon by a judge, but this is not guaranteed.

For real estate professionals (agents, developers): this decision reminds you of the importance of verifying title deeds and their publication. During a transaction, do not rely solely on the statements of the parties: require published documents. If a title is old and unpublished, carry out a legal analysis to determine whether it can be invoked. In the context of a property development in Toulon, I saw a project delayed because an unpublished title deed was challenged by a neighbour. Prior verification would have saved months of proceedings.

Four Tips to Avoid This Type of Dispute

• Keep all your title deeds, even the oldest and unpublished ones. They can constitute valuable evidence in case of a dispute. Store them in a safe place and inform your notary of their existence.
• Have any deed transferring ownership or creating a real right published. Registration in the land registry (formerly the mortgage registry) is your best protection against claims by third parties. Without publication, your right can be defeated by a bona fide purchaser.
• Before buying a property, check the chain of title deeds. Ask your notary to go back at least 30 years to detect any unpublished deeds that might affect your right. In Brignoles, a buyer discovered after the sale that the seller was not the sole owner, as an unpublished deed of gift had been ignored.
• In case of a dispute, consult a lawyer specialising in property law. A professional can analyse your titles and determine whether they are enforceable. Do not try to resolve a property conflict alone: the stakes are too high.

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Further Reading: Related Case Law and Developments

This 1979 decision is part of a consistent line of the Court of Cassation. For example, in a judgment of 13 February 1975 (No. 73-11.856), the Court ruled that an unpublished deed of sale could be relied upon to establish the existence of a right of way, provided that the deed did not create the easement but merely recorded it. Similarly, a judgment of 24 October 2000 (No. 98-20.173) confirmed that an unpublished deed of partition could be relied upon between co-heirs to determine the ownership of a lot.

The trend of the courts is therefore to favour the search for material truth over form, while recalling the importance of land registration for legal certainty. However, since the reform of land registration in 1955, judges have become increasingly strict about the requirement of publication for deeds creating real rights. In practice, the 1979 case law remains applicable, but it is often invoked in specific cases where the unpublished deed merely records a pre-existing right.

For the future, expect courts to require solid proof of the pre-existing right (for example, thirty years' possession or administrative acts). The mere production of an unpublished deed will not suffice if it is contradicted by other elements. This decision is therefore a lifeline for owners of old rights, but it does not dispense with the need for publication for recent deeds.

Key Points to Remember

FAQ

Q: Can an unpublished deed prove my ownership?
A: Yes, if it records a pre-existing right (for example, a deed of recognition of ownership) and not if it creates a new right (such as a sale). The Court of Cassation confirmed this in this judgment.

Q: Must I absolutely publish all my deeds?
A: Yes, for deeds transferring ownership (sale, gift) and creating real rights (easement, mortgage). Publication protects you against third parties. For purely declaratory deeds, publication is not compulsory but recommended.

Q: What if a neighbour challenges my unpublished title?
A: Consult a lawyer. They can analyse whether your deed records a pre-existing right. If so, you can rely on it in court. If not, you risk losing the case.

Q: Can I sell a property without a published title?
A: Technically yes, but it is risky. The buyer will generally require publication. If you sell without publication, you may be sued for selling a property you do not own.

Q: Does this decision apply to easements?
A: Yes, if the easement is recorded in an unpublished deed, it may be recognised if it predates 1955 (the date of the reform of land registration) or if it is acquired by prescription. The 1979 case law is often cited in easement disputes.

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