Contested Building Permit: The Judicial Judge Must Apply It Without Delay

You have just bought a house in Saint-Junien, and your neighbour is suing you, claiming that your extension exceeds the limits of the building permit. Yet the permit is in order, issued by the town hall. What will the court do? Can it block everything while waiting for the administration to rule?

This is exactly the question the Court of Cassation decided in 1978 in the Goyeneche case. An owner had built a house on the basis of a compliant building permit. His neighbours sued him for demolition for breach of planning regulations, but without ever challenging the validity of the permit itself. The Tribunal de grande instance of Limoges then stayed proceedings, asking the administration to rule on the validity of the permit. The Court of Cassation quashed that decision.

Why? Because, according to the high court, if a regulatory document (like a building permit) is not challenged as to its validity, the judicial judge must apply and interpret it without referring the matter to the administration. This principle avoids endless delays and protects litigants against dilatory procedures. Let us discover the details of this case and what it means for you, owners, tenants, or real estate professionals.

The Facts: An Everyday Story

Mr. Goyeneche, an owner in Isle (Haute-Vienne), had obtained a building permit to build a house on his land. Work began, but his neighbours, the X couple, considered that the new construction encroached on their property and violated the local planning regulations. They sued Mr. Goyeneche before the Tribunal de grande instance of Limoges to obtain the demolition of the building.

At trial, the X couple did not challenge the validity of the building permit itself. They merely argued that the construction did not comply with the planning regulations. The court, however, decided to stay proceedings (i.e., to suspend the judgment) pending the administration (the departmental director of Equipment) ruling on the validity of the permit. In other words, the judicial judge refused to decide the dispute, considering that a preliminary administrative question was necessary.

Mr. Goyeneche appealed. The Court of Appeal of Limoges upheld the stay. Determined to obtain a decision on the merits, he appealed to the Court of Cassation. The Court of Cassation, in its judgment of 14 March 1978, quashed the appeal judgment, holding that the judicial judge was obliged to apply the building permit as long as its validity was not contested. The case was remitted to the Court of Appeal of Poitiers.

The Reasoning of the Court — Analysed

The Court of Cassation based its decision on an essential principle: the judicial judge is the ordinary judge for applying regulatory texts, provided their validity is not challenged. In this case, the X couple had not attacked the building permit before the administrative judge (the tribunal administratif). They merely alleged a violation of the planning regulations. However, a building permit is an individual administrative act which, as long as it has not been annulled by the administrative judge, is presumed valid.

The high court therefore recalled that the judicial judge cannot refer the matter to the administration to obtain an interpretation or assessment of validity, unless there is a genuine preliminary question (a serious difficulty concerning the legality of the act). In this case, there was no serious challenge: the permit had been issued in accordance with the rules, and the X couple had not demonstrated any illegality. The judge therefore had to apply the permit and, if necessary, interpret it himself to determine whether the construction was compliant.

This decision is an application of the principle of separation of powers: the judicial judge must not encroach on the competences of the administrative judge, but he must not hide behind an artificial preliminary question to avoid judging. The Court of Cassation thus laid down a clear rule: no stay of proceedings without a serious challenge to the validity of the act. This is a decision that strengthens the efficiency of justice by avoiding unnecessary referrals.

What This Means for You — Practically

If you are a property owner in Saint-Junien or elsewhere, this decision protects you. Imagine: you have obtained a building permit for an extension, and your neighbour sues you claiming that your construction violates the local plan (PLU). If your permit is in order and the neighbour does not challenge it before the administrative court, the judicial judge cannot suspend the proceedings to seek the administration's opinion. He must decide himself, which speeds up the procedure.

For a tenant, it is different: if your landlord carries out works with a permit, you cannot block the site by simply alleging an irregularity without challenging the permit. This avoids procedural abuses. For a buyer, it is a security: before buying, check that the building permit is not contested, because if it is, the seller could be in difficulty.

Example: in Isle, an owner had to wait 18 months of proceedings under a stay before the Court of Appeal finally ruled on the merits, after the Court of Cassation's judgment. Without this decision, he could have waited 3 more years. The cost? Legal fees doubled, not to mention loss of enjoyment.

Four Tips to Avoid This Type of Dispute

• Check your building permit before any challenge: If you believe a neighbouring construction is irregular, first ask for a copy of the permit from the town hall. If it is compliant, you must challenge its legality before the tribunal administratif within two months of its display, otherwise you can no longer do so.
• Do not rely on the judicial judge to annul a permit: The judicial judge cannot annul a building permit. For that, you must apply to the tribunal administratif. If you do not, the permit remains valid and the judicial judge will apply it.
• Document planning regulation infringements: Take photos, measure distances, note heights. If the construction violates the local plan, this may constitute a criminal offence (works without a permit or non-compliant) that the mayor can record.
• Consult a lawyer before suing: A poorly brought action may be dismissed for lack of challenge to the permit. A lawyer specialising in property law will advise you on strategy: attack the permit before the administrative judge or claim damages for abnormal neighbourhood disturbance.

Further Reading: Related Case Law and Developments

This 1978 decision is part of a consistent line of the Court of Cassation. One can cite a judgment of 5 May 1976 (No. 74-14.752) which had already held that the judicial judge can only stay proceedings if the preliminary question is serious. More recently, the Court of Cassation clarified that even where the permit is contested, the judicial judge can assess the conformity of the works with the permit without waiting for the administrative judge (Civ. 3e, 10 March 2016, No. 14-29.115).

The trend is therefore towards limiting stays of proceedings, to speed up procedures. This means that owners must be more vigilant: if you want to challenge a permit, act quickly before the tribunal administratif. Otherwise, the permit binds the judicial judge. The future may see this principle extended to other administrative acts (planning permissions, prior declarations).

In Practice: What to Do

Checklist for challenging a neighbouring construction:

1. Obtain a copy of the building permit from the town hall (deadline: 5 days).
2. Check the date of display of the permit (appeal deadline: 2 months from complete and continuous display).
3. If the permit is challengeable (procedural defect, illegality), apply to the tribunal administratif within 2 months.
4. If the permit is valid but the construction is non-compliant, file a criminal complaint for planning infringement or an action for demolition before the judicial judge (no stay possible).
5. Consult a lawyer to assess the strength of your case and avoid unnecessary costs.

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 →