Expropriation: the judge cannot review the legality of administrative acts

Imagine: you receive a letter from the town hall of Toulouse informing you that your house on Rue du Languedoc is going to be expropriated for a motorway bypass project. You have been the owner for twenty years and have invested in renovation works. Your first reaction? Check that everything is in order. But when you challenge the parcel plan (the document that precisely lists the affected parcels), the expropriation judge replies: "I am not competent to assess the legality of this administrative act." Surprising, isn't it?

This crucial question was decided by the French Supreme Court (Cour de cassation) in 1972. It laid down a clear principle: the civil judge in expropriation proceedings cannot review the validity of the administrative acts submitted to him, such as the parcel plan or the parcel map. In short, if you want to challenge these documents, you must go to the administrative court, not the expropriation judge. But what does this actually mean for you, as an owner in Castelnaudary or elsewhere?

This article will break down this decision, explain why it was made, and above all give you practical tips to avoid being caught out. undefined, I have come across cases where owners lost valuable time by approaching the wrong court, which delayed their compensation by several months.

The facts: a story that happens every day

In 1972, in a case concerning an expropriation, a property owner, Mr X, challenged the expropriation order (the decision transferring ownership to the administration) before the Cour de cassation. His main argument? The parcel plan (the document identifying the parcels to be expropriated) and the parcel map (the corresponding plan) were irregular. He claimed that these documents had been modified after the parcel inquiry (the procedure allowing owners to present their observations), and that the individual notifications of the filing of the inquiry file had not been made correctly. In other words, the administrative procedure had allegedly not complied with the rules.

The owner hoped that the expropriation judge (the civil judge) would annul the order due to these defects. But the Cour de cassation ruled against him. It held that the expropriation judge has no jurisdiction to assess the legality of administrative acts, such as the parcel plan or the parcel inquiry. In other words, even if these acts are tainted with illegality, the civil judge cannot disregard them. He must simply apply them.

This case illustrates a common problem: owners confuse the two orders of jurisdiction. However, note: this does not mean that the administration can do whatever it wants. Simply, challenges must be brought before the administrative court, not the expropriation judge. What few people know is that this rule is still in force today. It has been reaffirmed in many subsequent decisions.

The court's reasoning — broken down

The Cour de cassation relies on the principle of separation of administrative and judicial authorities, inherited from the law of 16-24 August 1790. Under French law, the civil judge cannot review acts of the administration. That is the role of the administrative court (tribunal administratif, cour administrative d'appel, Conseil d'État). In expropriation matters, the civil judge (expropriation judge) only intervenes to set the amount of compensation and to pronounce the transfer of ownership by order, but cannot verify the legality of the administrative procedure that preceded it.

Concretely, the Court examined three grievances raised by the owner: the first concerned the parcel plan, the second the parcel map and individual notifications, the third the posting of the parcel inquiry. For each grievance, it answered that the expropriation judge is not competent to assess the legality of these acts. In short, even if the parcel plan mentions a parcel that does not exist, or if the inquiry was not properly posted, the civil judge cannot take it into account.

This decision is a confirmation of previous case law. It did not create a reversal, but it recalled a fundamental rule. The owner's arguments may have been well-founded on the merits, but they were rejected on a procedural ground: the wrong court. This shows the importance of correctly identifying the competent judge from the outset. How to react? If you are faced with an expropriation, do not waste time challenging administrative acts before the expropriation judge. Go directly to the tribunal administratif.

What this means for you — practically

For a landlord owner in Toulouse, this decision means that if the town hall initiates an expropriation procedure for a city park project, and the parcel plan omits part of your land or contains an area error, you cannot challenge it before the expropriation judge. You must apply to the tribunal administratif de Toulouse, within two months of the publication of the cessibility order (the act declaring the parcels as expropriable). If you wait, you risk losing any recourse.

For a buyer in Castelnaudary, imagine you buy a house and a few months later the municipality initiates an expropriation for a greenway. If the parcel inquiry was not notified to all affected owners, you cannot invoke this defect before the expropriation judge to delay the order. Your only option is to challenge the cessibility order before the administrative judge, before the order is made.

If you are in this situation, you must act quickly. The time limit to challenge a parcel plan is two months from its publication. After that, it is too late. The amounts at stake can be significant: an area error of 50 m² on land worth €200/m² means €10,000 less in compensation. It is better to consult a specialised lawyer at the first signs of expropriation.

Four tips to avoid this type of dispute

• Identify the correct court from the first letter: If you receive a notice of parcel inquiry, note that any challenge to the legality of the inquiry or the parcel plan falls within the jurisdiction of the tribunal administratif, not the expropriation judge. Keep all documents and note the deadlines.
• Instruct a lawyer before the expropriation order: Once the order is made, it is generally too late to challenge the preparatory acts. A lawyer can check the procedure and guide you to the right court before the deadline expires.
• Check the parcel plan with a surveyor: Have your parcel measured by a chartered surveyor to ensure that the areas and boundaries match. An error of a few metres can have financial consequences.
• Do not sign anything without understanding: The administration may offer you an amicable compensation. Do not accept without verifying that all administrative acts are regular. If in doubt, apply to the tribunal administratif for an interim order (référé) to suspend the procedure.

Further reading: related case law and developments

The 1972 decision has been confirmed subsequently. For example, the Conseil d'État judgment of 28 March 2008 (no. 292753) recalled that the expropriation judge cannot assess the legality of the cessibility order, even if it is tainted with a defect. Similarly, the Cour de cassation, in a judgment of 5 November 2003 (no. 02-13.641), held that the civil judge cannot review the legality of the public inquiry.

The trend of the courts is therefore constant: the administrative acts preparatory to expropriation fall exclusively within the jurisdiction of the administrative court. This means that owners must be vigilant and act upstream. What few people know is that it is possible to challenge these acts by way of an application for judicial review (recours pour excès de pouvoir) before the tribunal administratif, even if the expropriation order has already been made, provided the time limits have been respected. For the future, this case law is well established and is unlikely to change.

Key points to remember

• Can I challenge the parcel plan before the expropriation judge? No, the expropriation judge is not competent to assess its legality. You must apply to the tribunal administratif.
• What is the time limit to challenge a parcel plan? Two months from its publication or notification.
• What if the parcel plan contains an error regarding my parcel? Immediately apply to the tribunal administratif for judicial review. At the same time, apply for an interim suspension order (référé suspension) to block the expropriation procedure.
• Can the expropriation order be annulled if the parcel plan is irregular? Yes, but only if you have previously obtained the annulment of the parcel plan by the administrative judge. Otherwise, the civil judge cannot annul it.
• How much does an application to the tribunal administratif cost? Legal costs (lawyer, expert) vary depending on complexity. Expect between €1,500 and €5,000 for a simple procedure. But an unchallenged error could cost you much more.

Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.

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