Annulment of Planning Permission: Does the Sale Remain Valid?

You have signed a preliminary contract for the purchase of a flat in Haguenau. The seller assures you that everything is in order. But a few weeks later, you learn that the planning permission for the building has been annulled by the administrative court. Panic sets in: is the sale void? Can you claim your money back?

This is exactly the question that arose in a case decided by the French Supreme Court in 1977, the principle of which remains relevant today. A developer sold a commercial unit off-plan, but the planning permission was annulled. The purchaser refused to sign the final deed, arguing that the sale was void. The Court ruled: the annulment of the planning permission does not automatically render the sale void. Explanation.

This decision, handed down nearly 50 years ago, continues to set a precedent. It reminds us of a fundamental principle: civil law and planning law are two separate areas. A planning irregularity does not necessarily invalidate a contract of sale. But be careful, everything depends on the circumstances. In Obernai as elsewhere, it is better to know your rights before signing.

The facts: a story like many that happen every day

In 1970, a developer, whom we shall call Mr Dupont, obtained planning permission for a building in Haguenau. He started construction and sold several units, including a shop to a company, Agence Centrale. The contract provided that the price would be paid by way of a transfer in lieu of payment: the buyer handed over an asset in exchange for the shop.

But a neighbour, Mr Marro, challenged the planning permission before the administrative court. On 10 June 1971, he filed an appeal. On 13 September 1973, Agence Centrale brought proceedings to compel the developer to sign the final deed. The developer resisted, arguing that the planning permission was under challenge and that the value of the property was compromised.

Finally, on 19 December 1975, the Council of State definitively annulled the planning permission. The building was therefore constructed illegally. The purchaser then refused to sign the deed, claiming that the sale was without object. The developer brought proceedings to have the sale declared complete.

The Court of Appeal ruled in favour of the developer: it ordered the purchaser to sign the final deed, on the ground that the agreements between the parties must be respected. The purchaser appealed to the Supreme Court. He argued that the annulment of the planning permission made the sale impossible or, at the very least, reduced the value of the property, which should allow a reduction in price.

The Supreme Court dismissed the appeal. It held that the Court of Appeal had correctly applied the law: infringements of planning legislation do not in themselves render agreements void. In other words, the sale remains valid despite the annulment of the planning permission.

The reasoning of the court — analysed

The Supreme Court relies on a simple principle: contract law is autonomous from planning law. Article 1101 of the Civil Code (definition of contract) provides that a contract is an agreement by which one or more persons bind themselves to one or more others to give, to do, or not to do something. Here, the parties freely consented to the sale. The fact that the planning permission is annulled does not affect the validity of the consent.

The Court specifies that any infringements of planning legislation that may have been committed cannot in themselves render these agreements void. In other words, even if the building is illegal, the sale can be valid. It is not because the planning permission is annulled that the contract becomes void.

The purchaser put forward a common-sense argument: if the planning permission is annulled, the property loses value, or even becomes unsaleable. The Court implicitly acknowledges that the value may decrease, but it considers that this does not justify setting aside the sale. The purchaser should have made inquiries before signing, or negotiated a suspensive condition (a condition that suspends the sale until the occurrence of an event) linked to the final grant of planning permission.

This decision is neither an evolution nor a reversal: it confirms a consistent line of case law. As early as 1977, the Supreme Court affirmed that the fate of planning permission is independent of the validity of the contract of sale. This position has been reaffirmed since, notably in a judgment of 3 November 2016 (appeal no. 15-20.519).

What this means for you — in practice

If you are a landlord selling a property in Obernai whose planning permission has been annulled, be aware that the sale can be upheld. You cannot be forced to reimburse the purchaser, unless you have committed fraud (intentional deception) or the property is unfit for its intended purpose.

If you are a purchaser, be vigilant: before signing, check that the planning permission is final. You can include a suspensive condition in the preliminary contract, providing that the sale will be annulled if the planning permission is annulled. Without this, you risk having to pay for a property that does not comply with planning law.

Let us take a concrete example: in Haguenau, a flat of 80 sqm is sold for €200,000. The planning permission is annulled one year after the sale. The purchaser cannot seek annulment of the sale on that ground alone. However, he may bring an action for latent defects (hidden defects making the property unfit for use) if he proves that the illegality of the building causes him harm (for example, inability to resell). But that is a different action, more complex.

If you are a tenant, this decision has little direct impact. Your lease remains valid as long as the dwelling is habitable. However, if the building is threatened with demolition, you may obtain damages from the landlord.

Four tips to avoid this type of dispute

• Check the planning permission before any purchase: ask the seller or notary for a copy of the final planning permission. Ensure that no appeal is pending before the administrative court. A simple certificate of conformity is not enough.
• Include a suspensive condition in the preliminary contract: provide that the sale is conditional on obtaining final and unchallengeable planning permission. If the planning permission is annulled, the preliminary contract becomes void and you get your deposit back.
• Consult a solicitor specialising in property law: before signing, a solicitor can analyse the planning risks. In Obernai, Maître Zakine regularly examines this type of file. A 30-minute consultation can save you from heavy losses.
• In the event of a dispute, act quickly: legal actions are subject to time limits (limitation periods). For an action to annul a sale, you have 5 years from the discovery of the defect. For an action for latent defects, 2 years from the discovery of the defect.

Further reading: related case law and developments

This 1977 decision has been confirmed by several subsequent judgments. For example, the Supreme Court ruled on 3 November 2016 (no. 15-20.519) that the annulment of planning permission does not affect the validity of a sale of a building to be constructed, unless the contract provides for a resolutive condition (a clause that annuls the sale if an event occurs).

However, another decision of 12 July 2018 (no. 17-21.045) qualified this principle: if the planning permission is annulled before the signing of the final deed, the purchaser may refuse to sign if the building does not comply with the planning rules in force. The current trend is therefore to protect the bona fide purchaser, while maintaining the binding force of contracts.

For the future, courts may be stricter if the seller knew of the risk of annulment and did not disclose it. Good faith is a key element: if the seller concealed the existence of an appeal, he may be found liable for fraud.

Frequently asked questions

Can I cancel a sale if the planning permission is annulled after signing?
No, not automatically. The annulment of the planning permission does not render the sale void. You must prove a latent defect or fraud.

What if the seller did not inform me of the appeal against the planning permission?
You can bring an action for contractual liability (action against the seller for breach of duty to inform) or for fraud if you prove he intentionally concealed the information.

What are the time limits for taking action?
For an action to annul a sale for fraud, you have 5 years from the discovery of the deception. For an action for latent defects, 2 years from the discovery of the defect.

Is the notary liable if he did not check the planning permission?
The notary has a duty to advise. If he did not draw your attention to the risks, you can bring a claim against his professional civil liability.

Does this case law also apply to sales of building plots?
Yes, the same principle applies. The sale of a plot whose planning permission has been annulled remains valid, unless there is a clause to the contrary.

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