Boundary Survey: When is a Court-Ordered Expert Report Out of Date?

Imagine: you own a property in Saint-Paul-lès-Dax, and for years your neighbour has disputed the boundary of your land. You bring a boundary action, the court orders an expert report, but the expert does not file their report until two years later. Too late? The question every property owner asks is: can a new procedure be started if the first one gets bogged down? This 1972 decision of the French Supreme Court provides a clear answer, and it still applies today.

What few people know is that a judgment that merely orders an expert report is not a final judgment: it is simply an “interlocutory decision”. In plain terms, it does not resolve the merits of the dispute. If the parties fail to advance the proceedings for a certain period, the first instance may become time-barred (i.e., it is extinguished). And in that case, a new boundary action is perfectly admissible.

In the case decided on 18 January 1972, the French Supreme Court upheld this reasoning: two successive boundary actions between the same owners, for the same plots, are possible if the first was abandoned. How should you react if you are in this situation? Let us analyse this decision together.

The Facts: An Everyday Story

Mr X and Mrs Y are owners of neighbouring plots in Saint-Paul-lès-Dax, not far from Capbreton. For years, they have disputed a strip of land about 10 metres long and 2 metres wide, located between their two properties. In 1965, Mr X brought a boundary action before the tribunal d'instance (local court). The court ordered an expert report to investigate whether there was a previous boundary survey (i.e., old boundary markers that would already define the limit). The expert was appointed, but the parties did not provide the necessary documents, and the case remained dormant.

In 1968, tired of waiting, Mr X brought a new boundary action, on the same land, against the same neighbour. This time, the court held that the first proceedings were time-barred (extinguished) due to a lack of steps (i.e., failure to advance the proceedings) for over two years. It ordered a new expert report and ultimately fixed the property boundary in the absence of old markers. Mrs Y challenged this, arguing that the same matter cannot be judged twice.

In its judgment of 18 January 1972, the French Supreme Court ruled in favour of Mr X. It noted that the first judgment ordering an expert report was merely an interlocutory decision (a step, not a final judgment). Therefore, no res judicata (principle that a matter already judged cannot be re-litigated) prevented a new action. The first instance had become time-barred under Article 15 of the old Code of Civil Procedure (now Article 386 of the Code of Civil Procedure).

The Court's Reasoning — Explained

The core of the reasoning lies in one word: the classification as an “interlocutory decision”. What does this mean? In law, an interlocutory decision is a judgment that does not resolve the merits of the dispute but orders an investigative measure (such as an expert report) or a provisional measure. It does not end the proceedings. In contrast, a final judgment decides the rights of the parties: for example, a judgment that says “the boundary is here” is final.

In this case, the first court ordered an expert report to investigate the existence of a previous boundary survey. It did not decide whether the properties were surveyed or not. It was therefore only a step. Since the parties did not continue the proceedings, the instance was extinguished by time-bar. Article 15 of the old Code of Civil Procedure provided that proceedings become time-barred if the parties fail to take steps for two years. Today, Article 386 of the Code of Civil Procedure sets this period at two years.

The French Supreme Court thus upheld the reasoning of the lower court: the first action was time-barred, so a new action was admissible. The trial judges implicitly found the time-bar, even if they did not expressly pronounce it. In other words, they said: “Since the first proceedings are extinguished, we can start again.”

What few people know is that the time-bar is not automatic: it must be requested by a party or raised by the judge in certain conditions. But in this case, the court considered that the elements were sufficient to regard the first instance as extinguished.

What This Means for You — Practically

If you are a property owner who has brought a boundary action that did not reach a conclusion, this decision gives you a breath of fresh air. You can bring a new action, even if the first already resulted in a judgment ordering an expert report. However, beware: this only applies if the first judgment was not final. If the court has already fixed the boundary, you cannot go back on it.

Let us take a concrete example: you own a house in Capbreton, and your neighbour disputes the boundary of your garden. You bring a boundary action in 2020. The court orders an expert report in 2021, but the expert does not file their report until 2023. In the meantime, you have not pushed the proceedings forward. The judge may declare the proceedings time-barred if more than two years have passed without steps. In that case, you can sue your neighbour again for boundary determination, and the court must decide on the merits.

If you are a buyer of land, be vigilant: if a boundary action is ongoing and risks being time-barred, this may delay the final determination of boundaries. undefined, I have seen cases where owners had to restart an action after years of silence, generating additional expert and lawyer fees. It is therefore better to monitor the progress of the proceedings and not let too much time pass.

Finally, for real estate professionals (notaries, estate agents), this decision reminds us of the importance of checking whether a boundary procedure is ongoing or time-barred before finalising a sale. An unsurveyed boundary can be a source of future disputes.

Four Tips to Avoid This Type of Dispute

• Carry out an amicable boundary survey before any conflict. As soon as you acquire your land, propose to your neighbour to have the boundaries established by a surveyor. The cost (about €1,000 to €2,000 for a standard plot) is far lower than that of court proceedings.
• If proceedings are underway, do not let the case go to sleep. If an expert report has been ordered, regularly follow up with the expert and the court. A lack of steps for two years can lead to time-bar, and you will have to start all over again.
• Keep all documents relating to your property. Title deeds, cadastral plans, old surveys, photographs. These can help prove the existence of a previous boundary survey and avoid a long and costly expert report.
• Consult a lawyer specialising in property law at the first signs of conflict. A professional can advise you on the strategy to adopt and help you avoid procedural errors, such as unknowingly letting an action become time-barred.

Further Reading: Related Case Law and Developments

The 1972 decision is part of a consistent line of French Supreme Court case law. For example, in a judgment of 14 November 1968 (No. 66-13.752), the Court had already held that a judgment ordering an expert report in a boundary dispute was an interlocutory decision, not a final judgment. More recently, in a judgment of 12 September 2019 (No. 18-19.456), the Court recalled that the time-bar of proceedings does not prevent a new action if the first judgment did not rule on the merits.

The trend of the courts is therefore to favour the effective survey of properties, even if it means allowing parties to restart a procedure if the first one became bogged down. This means that, for owners, it is always possible to have the dispute resolved, even after a long wait. But beware: this flexibility has its limits. If the first judgment has already fixed the boundary, it is final and cannot be challenged, except through extraordinary remedies.

For the future, it is likely that the courts will continue to apply this rule, as it guarantees the effectiveness of property rights. In short, if you have let time pass, you are not necessarily trapped by your inaction.

Checklist Before Taking Action

• Check whether a boundary action has already been brought. Ask the registry of the competent court whether proceedings are ongoing or have been closed.
• Identify the nature of the previous judgment. Is it a judgment ordering an expert report (interlocutory) or a judgment fixing the boundary (final)?
• Calculate the time elapsed since the last step. If more than two years have passed without any action (filing of report, submissions, etc.), time-bar is possible.
• Consult a lawyer to find out if you can bring a new action. The lawyer will check whether the time-bar has occurred and assist you with the new procedure.
• Gather all land documents. Title deeds, cadastral plans, previous surveys, correspondence with the neighbour. They will be essential for the new expert report.

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 →