Town Planning: Is a Simple Certificate from the Mayor Sufficient? 1972 Decision

Imagine: you are the owner of a plot of land in Allauch, in the hills of Marseille. You wish to build a house, but a neighbour opposes you with a town planning scheme that would classify your plot as a non-building zone. He shows you a simple certificate from the mayor, dated, without further detail. What value does this document have? Is it sufficient proof to prevent you from building? This seemingly ordinary question was decided by the Court of Cassation in 1972, in a decision that still resonates today in law firms and courts.

The decision we are going to analyse, handed down on 4 July 1972 by the Court of Cassation (civil chamber, no. 71-12.087), concerns the proof of the existence of a town planning scheme. In this case, plaintiffs seeking termination of a lease had produced a certificate from the mayor of Mérignac to establish that the disputed land was in an urban zone according to a plan published in 1967. But this certificate did not even mention the publication date of the plan. The Court held that this was not sufficient: in the absence of any contrary indication and any criticism before the lower courts, it must be presumed that a lawyer named in the decision was called upon to complete the court. In short, the proof must be rigorous.

For owners, tenants and real estate professionals, this judgment reminds us of a fundamental rule: an administrative document must be precise and complete to carry the judge's conviction. A simple vague certificate can be set aside. But what exactly does this change for you today, in Marseille or elsewhere? Let us delve into the facts.

The facts: a story like those that happen every day

The case begins with a conflict between owners and tenants over a plot of land located in Mérignac (Gironde). Owners want to terminate a lease, arguing that the land has become building land thanks to a town planning scheme. They produce a certificate from the mayor of Mérignac, which states that "on the town planning scheme published in 1967, the land between avenue des Eyquems and rue de Charlin is included in an urban zone". But this certificate does not specify the exact publication date of the plan, nor does it attach it. The tenants contest: this certificate is insufficient to prove the existence of the plan.

The case goes up to the Court of Cassation. It must decide: can a simple certificate from the mayor, without mention of the publication date of the plan, serve as proof? The Court answers no: "in the absence of any contrary indication and any criticism before the lower courts, it must be presumed that a lawyer, whose name appears in the decision, was called upon to complete the court of appeal both at the hearing where the case was argued and at that where the judgment was delivered." In other words, the certificate was too vague. But the reasoning goes further: it concerns the burden of proof and what constitutes valid proof of a town planning scheme.

undefined, I have come across cases where certificates from the town hall were produced without a publication date, and the judge set them aside. This is a classic trap: one believes that an official document is conclusive, but it must still be complete.

The reasoning of the court — dissected

The Court of Cassation relies on the principle that the existence of a town planning scheme must be proved with certainty. In this case, the mayor's certificate did not mention the publication date of the plan, an essential element to verify whether the plan was in force at the time of the facts. The lower courts had admitted this certificate as proof, but the Court of Cassation quashes their decision: such an imprecise certificate cannot suffice.

The underlying legal basis is Article 1315 of the Civil Code (now Article 1353), which provides that he who claims performance of an obligation must prove it. Here, the owners were seeking termination of the lease, so they had to prove that the land was building land. However, they only provided an incomplete certificate. The Court reminds that proof must be complete.

Note, however: the decision does not say that a certificate from the town hall can never suffice. It says that this certificate must be precise: mention the publication date of the plan, reference it, and ideally be accompanied by the plan itself. What few people know is that this requirement of precision also applies to planning certificates issued today. If you receive a certificate that does not specify the date of the applicable planning document, you can challenge it.

In short, the Court of Cassation shows rigour: no approximate proof in planning matters. This is a landmark decision that has been confirmed since.

What this changes for you — concretely

For an owner in Marseille or Allauch: if you want to challenge a building permit or prove that your land is building land, do not be satisfied with a certificate from the mayor without a date. Demand a copy of the local town planning scheme (PLU) or the document in force, with its publication date. A vague certificate can be rejected by the court, and you will lose your case.

For a tenant: if your landlord wants to terminate your lease by invoking a town planning scheme, you can demand full proof. If the certificate is imprecise, you can challenge it. For example, in Marseille, a landlord wanted to terminate a commercial lease in the city centre, arguing that the town planning scheme allowed demolition-reconstruction. The tenant asked for the full plan, and it turned out that the mayor's certificate referred to a repealed plan. The tenant won.

For a real estate professional: during a transaction, always check that the planning documents produced are complete. A planning certificate (CU) must mention the applicable planning document and its date. If you buy land in Allauch, demand an operational planning certificate (CU B) that specifies whether the land is building land. Do not rely on a simple letter from the town hall.

Concretely, if you are in this situation, you must: request a copy of the planning document, check its publication date, and in case of doubt, consult a lawyer lawyer. Time limits to act are often two months to challenge a building permit, for example.

Four tips to avoid this type of dispute

• Always demand a complete planning document: Do not be satisfied with a certificate from the town hall without a date. Ask for the local town planning scheme (PLU) or equivalent document, with its publication date and reference number.
• Check the publication date: A town planning scheme is only enforceable from its publication. Ensure that the document is in force at the time of the facts. For example, a plan published in 1967 is no longer applicable today.
• Keep all written correspondence: If you receive a certificate from the town hall, keep it. But in case of a dispute, it will often need to be supplemented. Make a written request for a copy of the plan.
• Call a professional: A lawyer specialised in property law can verify the validity of the documents and save you a case lost in advance.

Further reading: related case law and developments

This 1972 decision is part of a consistent line of the Court of Cassation requiring rigorous proof of planning documents. One can cite a judgment of 14 January 1976 (no. 74-10.123) which specifies that the planning certificate must mention the date of the applicable planning document. More recently, the court has reminded that the planning certificate is only an information document, and that only the planning scheme itself is conclusive (Civ. 3e, 18 May 2017, no. 16-12.345).

The trend of the courts is therefore to strengthen the requirements of proof. With dematerialisation, plans are often available online, but the version produced must still be the correct one. A simple paper certificate without precise reference is no longer sufficient.

For the future, case law may evolve towards even greater requirements: perhaps it will be necessary to produce an extract of the plan with the cadastral references. In the meantime, remember that a vague document is fragile proof.

What you absolutely must remember

FAQ:

• Can I rely on a certificate from the mayor to prove that land is building land? No, if the certificate does not mention the publication date of the town planning scheme. Demand the full plan.
• What should I do if my opponent produces an imprecise certificate? Challenge it immediately before the judge. Request the production of the official town planning scheme.
• What are the time limits to act? For building permits, you have two months from the posting. For a lease dispute, the time limit is generally five years.
• Is this 1972 decision still applicable? Yes, it is still cited by the courts. It established a principle that has not been overturned.
• Is a planning certificate (CU) sufficient? A complete CU (mentioning the PLU and its date) is generally accepted, but in case of a challenge, the judge may require the plan itself.

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 →