Buildable Land and Compulsory Purchase: Beware of Land Valuation

Imagine: you own land on the outskirts of Dax, in the Landes, which until now served as pasture or garden. One day, you receive a compulsory purchase order for a municipal housing development project. The local authority offers you compensation based on agricultural value, but you are convinced that your land, located in a zone undergoing urbanisation, is worth much more. Who is right?

This question arises for hundreds of owners every year. The issue is simple: how much is land that is not yet buildable but could become so tomorrow really worth? The answer lies in a decision of the Court of Cassation of 14 February 1996 (No. 95-70.006), which settled a similar dispute. But what exactly did it decide? And above all, how to apply it in practice?

In this article, we will dissect this landmark decision in compulsory purchase law. You will understand why the judge cannot anticipate the future, and what this means for you, whether you are an owner, buyer or property professional. Ready? Let's go.

The Facts: A Story That Happens Every Day

Mr X, owner in Dax, owned several plots (Nos. 5, 7, 8, 9 and 10) located in an area which the local urban plan (PLU) described as a "zone undergoing urbanisation". One day, the municipality initiates a compulsory purchase procedure for reasons of public utility – for example, the construction of a school or infrastructure. The compulsory purchase judge, tasked with fixing the amount of compensation, must value the land. But at what date should the reference be taken?

According to Article L. 13-15-I of the Compulsory Purchase Code (now codified in Article L. 322-1 of the same code), the judge must place themselves at the date of the judgment to estimate the value, but they must especially take into account the actual use of the land one year before the compulsory purchase order. In other words, if the land was agricultural one year before, it must be valued as such, even if in the meantime the PLU has changed or urbanisation projects are underway.

In this case, the appeal judges (probably the Court of Appeal of Pau) had granted a higher indemnity based on the future vocation of the land: "located in a region undergoing urbanisation" and "destined to be included in a buildable zone". The municipality, dissatisfied, appealed to the Court of Cassation. The Court of Cassation ruled in its favour: the reason of future vocation is erroneous and superfluous. In short, the judges did not respect the rule of actual use. The case was remitted to another court of appeal. A classic twist!

The Reasoning of the Court — Explained

Why did the Court of Cassation quash the appeal decision? Because the compulsory purchase judge cannot anticipate a future change in land use. The rule is clear: compensation must cover the direct, material and certain loss caused by the compulsory purchase. However, the mere possibility that land might become buildable does not constitute certain loss. The valuation must be based on actual use at the reference date.

Article L. 13-15-I of the Compulsory Purchase Code (simplified: "the judge must value the property according to its actual use one year before the compulsory purchase, unless the owner was prevented from developing it"). Here, the plots were not buildable at the reference date, so their value could not be that of building land.

The Court of Cassation does not call into question the judge's discretion to assess value, but it reminds that any reason foreign to the legal rule is "superfluous" (i.e., unnecessary and erroneous). In other words, the judge may note that the land is in a future urbanisation zone, but cannot infer a higher value if the actual use is agricultural. This decision is a confirmation of constant case law: speculation on the future is not compensable.

What few people know is that this solution also protects public finances: without it, compulsory purchases would cost much more, because every owner would demand the price of buildable land hoping that the judge would anticipate. But it also protects the owner against abuses: if the local authority undervalues based on actual use when the land is already buildable, the judge must correct this.

What This Means for You — In Practice

Are you the owner of non-buildable land in a future urbanisation zone? This decision directly concerns you. If you are compulsorily purchased, the compensation will not take into account the potential buildability. You must therefore be vigilant: if your land already has an actual use that gives it value (e.g., agricultural lease, or tolerated commercial activity), it is this use that you must demonstrate.

Let's take a numerical example: in Biscarrosse, agricultural land is worth about €5,000 per hectare. If it becomes buildable, its value can rise to €50,000 per hectare or more. The difference is huge. But if you are compulsorily purchased before the change of PLU, you will only receive €5,000 per hectare, unless you prove that your land already had a more profitable actual use (e.g., tolerated wild camping).

If you are a buyer of land in a future urbanisation zone, beware of promises of short-term buildability. Compulsory purchase law does not protect you against administrative contingencies. If the local authority compulsorily purchases before the change of PLU, you will lose your investment.

Finally, if you are a property professional (estate agent, notary), this decision reminds you of the importance of verifying the actual use of land during a transaction. Do not rely solely on planning documents: the actual use may be different and change the situation in case of compulsory purchase.

Four Tips to Avoid This Type of Dispute

• Keep all evidence of the use of your land: photos, lease certificates, invoices for sale of crops, etc. In case of compulsory purchase, this is your best weapon to demonstrate an actual use other than purely agricultural.
• Anticipate changes to the PLU: if you think your land will become buildable, do not delay in requesting an operational planning certificate. This can help you freeze the use before any compulsory purchase project.
• Do not rely on "future potential": in your negotiations with the local authority, do not base yourself on verbal promises. Demand official documents (approved PLU, resolution) to prove a change of use.
• Consult a lawyer lawyer as soon as you receive the compulsory purchase notice: deadlines are short (15 days to contest the compensation). A professional will help you gather evidence and formulate a reasoned offer.

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

Further Reading: Related Case Law and Developments

This 1996 decision is part of a consistent line. For example, in a judgment of 10 July 1996 (No. 95-70.104), the Court of Cassation held that the judge cannot take into account a modification of the PLU that occurred after the reference date. Similarly, a judgment of 28 October 1998 (No. 97-70.083) specifies that actual use must be assessed on a case-by-case basis, without prejudging the future.

Since then, the law has evolved: the 2014 reform (Ordinance No. 2014-1345) strengthened the role of the compulsory purchase judge, but the principle of actual use remains unchanged. The trend in the courts is increasingly strict: they require tangible evidence of use, and reject any speculation. For the future, it is likely that the Court of Cassation will continue in this direction, especially in a context of land scarcity where local authorities seek to limit the cost of compulsory purchases.

Key Points to Remember

FAQ

Question: My land is in a buildable zone in the PLU, but has been unused for two years. What value for compulsory purchase?
Answer: Actual use one year before the compulsory purchase prevails. If the land is fallow, its value will be close to that of non-buildable land, unless you prove a prior use (e.g., a crop interrupted due to illness).

Question: The municipality modified the PLU after the compulsory purchase order. Can I request a revision of the compensation?
Answer: No, because the reference date is earlier. But you can challenge the public utility if the project has changed.

Question: What if the judge has already made a decision based on future potential?
Answer: You can appeal to the Court of Cassation within two months of notification of the judgment. A lawyer is mandatory before the Court of Cassation.

Question: Can I sell my land to a developer before the compulsory purchase to avoid undervaluation?
Answer: Yes, but be careful: if the compulsory purchase is imminent, the developer may withdraw. Moreover, the sale may be annulled if it is fraudulent (excessive price).

Question: What is the deadline to contest compulsory purchase compensation?
Answer: You have 15 days from notification of the local authority's offer to refer the matter to the compulsory purchase judge. After this deadline, the offer becomes final.

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 →