Boundary Demarcation and Possessory Action: The Court of Cassation Clarifies the Boundary (1978)

Imagine: you own a house in Dax, with a garden that opens onto a shared courtyard. One day, your neighbour decides to erect a fence right in the middle of that courtyard, depriving you of half your space. You say to yourself: “It’s my land, I have title deeds!” But your neighbour retorts: “I have used this courtyard for twenty years, it is mine by possession.” What to do? Bring a boundary demarcation action? But beware: if you mention possession, are you risking falling foul of a procedural rule that prohibits combining a possessory action and a petitory action (the one on ownership)? This is precisely the question the Court of Cassation resolved in 1978, in a judgment that remains a reference.

In plain terms, this decision says this: boundary demarcation (the delimitation of neighbouring plots) is a petitory action, that is, it concerns the substance of the right of ownership. Consequently, the prohibition under Article 25 of the Code of Civil Procedure, which forbids combining a possessory action and a petitory action, does not apply. In other words, you can perfectly well, in boundary demarcation proceedings, also discuss the possession of the premises, without the judge raising that rule against you. But what exactly does this change?

The facts: a story like many that happen every day

In this case, two neighbours, whom I will call Mr. Ravet and Mr. X, were disputing a shared courtyard in Capbreton. Mr. Ravet, owner of a plot, considered that the courtyard should be divided and brought a boundary demarcation action before the tribunal d'instance. His neighbour, on the other hand, claimed exclusive possession of the courtyard for years and argued that the boundary demarcation action was in reality a disguised possessory action. According to him, Mr. Ravet should have acted within the framework of possessory actions, with very short time limits (one year from the disturbance).

The tribunal d'instance initially ordered a division of the courtyard, but the court of appeal set aside that judgment, holding that the action was possessory and that the rule against cumulation (Article 25 of the Code of Civil Procedure) prohibited mixing possession and ownership. Mr. Ravet then appealed to the Court of Cassation. The question was simple: is boundary demarcation a possessory or petitory action?

The reasoning of the court — broken down

The Court of Cassation set aside the judgment of the court of appeal. Its reasoning can be summed up in one sentence: “The prohibition laid down by Article 25 of the Code of Civil Procedure, which constitutes a rule specific to possessory actions, is foreign to boundary demarcation proceedings, which are petitory in nature.” In other words, boundary demarcation is a petitory action (concerning the right of ownership), not a possessory action (which protects possession). Consequently, the rule prohibiting the combination of possession and ownership does not apply.

What few people know is that this distinction is fundamental in property law. The possessory action is a swift action, aimed at stopping a disturbance to possession (for example, if someone encroaches on your land without right). It must be brought within one year of the disturbance. The petitory action, on the other hand, is more substantial: it aims to have the right of ownership itself recognised. Boundary demarcation, even if it can be requested by the possessor, is always considered a petitory action, because it aims to fix the boundary between properties. In short, the Court of Cassation ruled: boundary demarcation cannot be dismissed on the pretext that there is a discussion about possession.

However, be careful: if you are in the process of losing your possession, you have an interest in acting quickly. But if you initiate boundary demarcation, the judge may take possession into account to determine the dividing line, without this being a procedural obstacle.

What this changes for you — concretely

Landlord owner: If you rent a property in Dax and your tenant complains about an encroachment by the neighbour, you can initiate boundary demarcation without fear that the judge will raise the one-year time limit of the possessory action. But note: the tenant is not entitled to bring a boundary demarcation action (only the owner can).

Owner-occupier: You buy a house in Capbreton and discover that the fence is not in the right place. You can request boundary demarcation, even if the seller tolerated the encroachment for years. Boundary demarcation is not subject to a time limit.

Co-owner: In a co-ownership, boundary demarcation may be necessary to delimit common and private parts. This decision allows you to act without fear of being time-barred.

Numerical example: in Capbreton, a plot of 500 m² may be worth €150,000. An encroachment of 10 m² is potentially a loss of €3,000. Boundary demarcation costs between €1,500 and €3,000 (surveyor + lawyer), but it secures your property.

Four tips to avoid this type of dispute

• Have an amicable boundary demarcation carried out at the time of purchase: Before signing the deed, ask the seller to have an expert surveyor carry out a contradictory boundary demarcation. This costs about €1,500, but avoids years of litigation.
• Do not tolerate an encroachment without reacting: If your neighbour installs a fence a bit too much on your land, send him a registered letter with acknowledgement of receipt to mark your opposition. Otherwise, possession could work against you.
• Keep your title deeds: The notarial deed often mentions the boundaries. If a boundary demarcation is contested, these deeds are your best weapon.
• Consult a lawyer before acting: A boundary demarcation action can be complex. A 30-minute consultation can save you from choosing the wrong procedure.

Further reading: related case law and developments

Before this 1978 judgment, some courts of appeal considered that boundary demarcation could be a possessory action when requested by the possessor. The Court of Cassation put an end to this uncertainty. Since then, the case law is constant: boundary demarcation is petitory. See, for example, Cass. Civ. 3e, 10 March 1993 (No. 91-13.469): “The boundary demarcation action is a petitory action.”

This clarification has allowed practices to be unified. Today, the tribunaux de grande instance (now judicial courts) have jurisdiction over boundary demarcation, regardless of the amount in dispute. In contrast, possessory actions fall within the jurisdiction of the tribunal d'instance (judge for protection disputes).

What this means for the future: boundary demarcation remains an essential tool for securing ownership. The trend is towards simplification, but one must always be vigilant about time limits and evidence.

In practice: what to do

Checklist for initiating boundary demarcation:

1. Gather your title deeds (notarial deed, cadastral plan).
2. Contact an expert surveyor for a quote (about €1,500).
3. Propose an amicable boundary demarcation to your neighbour. If agreed, the surveyor draws up a report that serves as a title.
4. If the neighbour refuses, petition the tribunal judiciaire with the help of a lawyer. The judge will order boundary demarcation and appoint an expert.
5. If you are in an emergency (imminent demolition), apply for an interim order to stop the disturbance.

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