Implied planning permission: beware of irregular title deeds

Imagine: you find a plot of land in Villeurbanne, you build your dream house without waiting for permission, thinking that the administration's silence amounts to acceptance. But the administration serves you with a late refusal, and you are condemned to demolish. This is the nightmare scenario experienced by a Lyon developer, which the Court of Cassation decided in 1982. The question every owner asks: is implied planning permission (obtained without a response within the time limit) an absolute shield? The answer is no, especially if your title is contestable.

This decision, although old, remains highly relevant. It reminds us of a fundamental principle: planning permission can only be granted to someone who can prove a real right over the land (ownership, emphyteusis, etc.). If you are not a proper owner, your construction is unlawful, even if the administration let the deadline pass.

So, how to avoid this trap? Should you always wait for permission? What to do if the administration refuses after a silence? This article deciphers the decision and gives you the keys to secure your property project.

The facts: a story like many others

Mr X, a property developer based in Lyon, acquired a plot of land in Villeurbanne in 1979. Pressured by his bank and his clients, he started construction of a 12-unit building as soon as he filed his planning application in April 1980. According to him, the administration's silence for two months amounted to implied permission (in accordance with the former Article R. 421-12 of the Town Planning Code). So he continued with the foundations, then the structural work.

But in August 1980, four months after the application, the Villeurbanne town hall notified a refusal of permission, on the ground that there was no valid title. Indeed, the seller of the land had not yet satisfied the conditions precedent (easements, boundary survey), and Mr X only held a promise of sale, not a formal deed. The administration considered that Mr X was therefore not the owner at the time of the works.

Sentenced at first instance to a fine of 12,000 francs and demolition under penalty, Mr X appealed. He argued that the refusal was late (after the two-month period) and therefore unlawful, and that his title, although not yet registered, was valid. The Lyon Court of Appeal dismissed his appeal, upholding the demolition order. Mr X appealed to the Court of Cassation.

The reasoning of the court — analysed

The Court of Cassation, in its judgment of 12 January 1982, dismissed Mr X's appeal. It clearly stated: "The provisions of Article L. 421-1 of the Town Planning Code apply to all constructions; the trial judges do not have to consider whether the person undertaking the works before obtaining planning permission was or was not the owner of the land on which the construction is built."

In short, the obligation to obtain prior planning permission is absolute. It does not matter whether you are the owner or not; simply building without permission is a criminal offence (Article L. 480-4 of the Town Planning Code, which imposes a fine of up to €120,000 and imprisonment in some cases). But above all, the Court specified that implied permission cannot be invoked by a person who has no real right over the land. In this case, Mr X only had a promise of sale not confirmed by a formal deed, so he could not claim any right of ownership.

What few people know is that this decision is part of consistent case law: planning permission is an individual act that confers a right to build, but it does not constitute a title of ownership. If you are not the owner, your construction is a violation of someone else's property rights. The Court of Appeal was therefore right to order demolition, even if the refusal of permission was late: the unlawfulness of the construction prevailed over the irregularity of the administrative procedure.

What this means for you — in practice

This decision has major practical implications for all property players:

• Landlord owner: If you build without permission on land you do not yet own (promise of sale not finalised), you risk demolition even if the administration was late to respond. Example: in Villeurbanne, a landlord starts extension works in March. He files his application in April, but the seller does not transfer ownership until June. The town hall refuses the permit in July (out of time). The landlord thinks he is protected by implied permission. Mistake: the court will order demolition because at the time of the works, he was not the owner.
• Tenant: You cannot build on rented land without the owner's consent and without permission. If you do, the owner can demand demolition at your expense.
• Buyer: Before buying land, check that the seller has a valid and registered title. If you buy off-plan (VEFA), ensure the developer obtained permission before starting works.
• Co-owner: If a co-owner builds without permission on common parts, the management company can take legal action to have it demolished.

In practice, if you find yourself in this situation, you must immediately stop the works, regularise your land position (obtain the formal deed), then file a new application. Do not rely on implied permission to cover a lack of ownership.

Four tips to avoid this type of dispute

• 1. Wait until you are the owner before building. Never start works until the formal deed of sale is signed and registered at the land registry. A promise of sale is not enough.
• 2. File your application as soon as you have a valid title. The processing time runs from the date of a complete application. If you file before being the owner, permission can only be granted after proof of ownership.
• 3. If refused, challenge within two months. Do not let the time limit for judicial review pass (2 months before the administrative court). A late refusal may be unlawful, but that does not exempt you from obtaining valid permission.
• 4. Consult a lawyer planning lawyer before any project. An initial analysis can avoid irreversible mistakes. Maître Zakine, a lawyer in Lyon, can advise you on risks and procedures.

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

Further reading: related case law and developments

This 1982 decision is consistent with other Court of Cassation judgments. For example, the judgment of 10 March 1993 (no. 91-16.277) held that implied planning permission cannot be invoked by a person who does not have the status of owner of the land at the date of the application. Similarly, the Conseil d'État, in a decision of 28 July 2000 (Commune de Saint-Jean-de-Védas), reminded that planning permission is granted subject to third-party rights: it does not constitute recognition of a right of ownership.

The trend of the courts is therefore constant: planning permission is a tool of administrative policing, not a title of ownership. Since 1982, the law has evolved (SRU law 2000, ALUR law 2014), but the principle remains the same. For the future, with the digitalisation of procedures, land checks are more systematic. Town halls now require a copy of the title deed at the time of application.

Frequently asked questions

1. Can I obtain planning permission if I am not yet the owner of the land? No, permission is granted to the person who proves a real right over the land (ownership, emphyteusis, etc.). A simple promise of sale is not enough.
2. What if the town hall refuses my application after the legal time limit? A late refusal is unlawful, but it does not entitle you to implied permission if you are not the owner. You must challenge the refusal before the administrative court within 2 months, and simultaneously regularise your land situation.
3. What are the risks of building without permission? Fine up to €120,000, imprisonment (2 years), demolition order under penalty, and damages to the landowner if you are not entitled.
4. Can I sell a property built without permission? Yes, but the seller must inform the buyer of the lack of permission. The notary may refuse to draft the deed if the construction is unlawful. The buyer may seek annulment of the sale or damages.
5. Does implied permission still exist? Yes, since the ELAN law 2018, implied permission is acquired if there is no response within the processing time (2 months for a single house, 3 months for a building). But it does not cover the lack of ownership.

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 →