Permit Annulled After You Built: When a French Judge Must Order Demolition

This article is provided for general information only and does not constitute legal, tax or financial advice. Rules change and individual situations differ. Always confirm the current position with a qualified professional before acting.

In March 2008, a couple in Vence, in the hills behind Nice, obtained a permis de construire, the French building permit, for a carport with a pergola and a roof terrace for solar panels. They built it. Their neighbours, on a plot that had been split off from the couple’s own land, went to the administrative court and had the permit annulled because the structure broke a height limit in the town plan. That part was confirmed on appeal in November 2011. The argument over whether the carport must come down is now in its nineteenth year.

On 1 October 2026, the Cour de cassation, France’s highest civil court, ruled on the dispute for the third time. It held that once the legal conditions are met, the civil judge has no choice and must order demolition, as far as needed to bring the building back into line with the planning rule, however slight the neighbour’s loss. Below, we set out the ruling and the rules behind it. We then add what an owner abroad needs: the zones where this can happen, the deadlines on both sides of the fence, and the checks to make before you build or buy.

Sources: Cour de cassation, 1 October 2026, no. 24-14.709, and article L. 480-13 of the French planning code.

What the Cour de cassation decided

The rule at stake is article L. 480-13 of the planning code, the Code de l’urbanisme. It covers a building put up in line with a permit that an administrative court later annuls. In that case, a civil court can order the owner to demolish it only under strict conditions, which we list further down. The mechanism dates from a planning reform law of 31 December 1976.

The question was what happens once those conditions are met. The Nîmes court of appeal thought it still had a choice. In a judgment of 7 March 2024, it accepted that the carport had widened the view into the neighbours’ property and cost them some sunlight, then refused demolition because the harm was limited. The extra view was about a metre of angle along a terrace, over a small part of the garden and a roof window. The lost sun fell on an 11 m² outbuilding, between March and November, for no more than two and a half hours a day.

The Cour de cassation quashed that reasoning twice, once for the view and once for the sunlight. The demolition action, it said, exists to repair the neighbour’s personal harm by ending the unlawful situation that causes it. A judge who finds such harm on the day of the ruling, “whatever its degree of seriousness”, must therefore order demolition unless it is impossible. The order goes only as far as needed to make the building comply with the rule that was broken.

The ruling was decided by a full section of the chamber and is published in the court’s official bulletin. The court’s own advocate general had advised the opposite. In his written opinion, he noted that the article says an owner “can” be ordered to demolish only if the conditions are met. That wording, he argued, could leave the judge room to weigh a slight harm against the consequences of demolition for the owner. The court didn’t follow him, and it had already leaned towards the strict reading in a decision of 3 April 2001 that was never published in the bulletin.

Eighteen years of one carport

The history of the case is worth a table. It shows how long this kind of dispute can run, and how the law changed under the parties’ feet.

Two things stand out for an owner. The permit was annulled fifteen years ago, and no court has yet finally decided the carport’s fate. The law also moved in the builders’ favour in the middle of the case, as the 2017 ruling records, and that still didn’t end it. In October, the builders were also ordered to pay the neighbours €3,000 towards their costs.

The five conditions for a demolition order

A neighbour who wants a permitted building pulled down under article L. 480-13 has to show five things.

1. The building was put up in line with a permis de construire.
2. The administrative court annulled that permit as unlawful before the civil judge was asked to act.
3. The claim rests on a breach of planning rules or of public-utility easements.
4. The building stands in one of the protected zones the article lists.
5. The neighbour suffers personal harm caused directly by the breach of the rule, and the mere presence of the building doesn’t count.

The first four come from the text and the fifth from the courts, because this is a civil liability claim. The harm can be a wider view into your garden or less sunlight, as in Vence, or a loss of privacy or quiet. An environmental association can qualify too: on 11 January 2023, the court accepted the principle for a wind farm whose impact study had dealt inadequately with a pair of golden eagles.

There’s also a time limit: the action must start within two years of the administrative decision becoming final. One exception to the fourth condition exists: where the préfet, the State’s local representative, had the permit annulled himself for a defect that can’t be fixed, he can sue for demolition outside the protected zones.

What the October ruling adds is that there’s no sixth condition. Once the harm exists, its size doesn’t matter. A building put up with no permit at all, or in breach of its permit, is a different case: the article doesn’t protect it, and ordinary liability rules apply.

“Protected zone” covers more than the coast

Until August 2015, the article applied anywhere in France. A law of 6 August 2015 then restricted demolition to a list of zones. The aim was to reduce legal uncertainty for building projects and to discourage abusive claims, as the Conseil constitutionnel put it when it upheld the list on 10 November 2017. Outside those zones, a neighbour can no longer obtain demolition on this ground and is left with a claim for damages.

The list is longer than the phrase suggests. It has 14 entries, and several reach well beyond wild coastline.

Two entries deserve a closer look, starting with the surroundings of a historic monument. Where no specific perimeter has been drawn, the protection reaches 500 metres from the monument. In the same Vence case, the court held on 16 November 2022 that any building inside that radius can be demolished under the article, whether or not it can be seen from the monument. In that situation, a listed church or château within 500 metres is enough to meet the zone condition. Our piece on the heritage architect’s say over works near a monument explains how that perimeter works day to day.

The second is the risk plan. In the 2022 ruling, the court held that it’s enough for the building to stand in a zone where the plan restricts the right to build, even if the plan allows that particular structure. The Vence carport stood in a section of the town’s forest-fire plan that allowed outbuildings without conditions, and that didn’t take it off the list.

You can check an address yourself on two government sites. The Géoportail de l’urbanisme shows the planning documents and public-utility easements that communes have published for a plot. Géorisques shows the known risks for an address. The mairie, the town hall, can confirm both.

What an owner can still argue

The ruling is strict, but it leaves several doors open. The Aix-en-Provence court will have to look at them when the carport comes back before it.

• The rule has changed, or the building has been regularised. On 30 April 2025, the court quashed an order to demolish a wind farm on this ground. The civil judge must check, on the day of the ruling, that the planning rule behind the annulment still applies to the owner, and whether the owner has put things right under the rules now in force.
• The harm has gone. The judge must find that it exists on the day of the ruling.
• Only the offending part comes down. If a house breaks a height limit by its top floor alone, the order covers that floor.
• Demolition is impossible. The court kept this exception but didn’t say what it covers.
• The neighbour is out of time. The action must start within two years of the final administrative decision.

A home may be treated differently from a carport. In a ruling of 17 December 2015, in a case about caravans installed in breach of a local plan, the Cour de cassation quashed a removal order. The appeal court hadn’t checked whether the measure was proportionate to the family’s right to respect for their home under article 8 of the European Convention on Human Rights. It came two years after Winterstein, a Strasbourg judgment against France of 17 October 2013. The October ruling doesn’t say how the two fit together.

The owner also has a claim of their own. A permit can only be granted to a project that complies with the planning rules, so an annulled permit means the authority got it wrong. A ministerial answer published on 20 May 2021 confirms that the holder of an unlawful permit can seek compensation from the commune that issued it. It’s a separate lawsuit, before the administrative court, with its own proof of loss.

If you’re building or extending: six steps

A permit isn’t safe on the day it’s granted. It becomes safe when nobody can challenge it any more, and from abroad that takes some organising.

1. Check the zone before you design. Look up the plot on the Géoportail de l’urbanisme and Géorisques, and ask the mairie whether a monument or a risk plan covers it.
2. Give an address where recorded post is opened. A neighbour who appeals must notify the permit holder by recorded letter within 15 clear days, and the notification counts from the day it’s posted. A letter that sits unopened still counts.
3. Display the permit on site and prove it. A third party’s time to appeal runs from the first day of a continuous two-month display. The government’s guidance on displaying a permit says photos, witness statements or a report by a commissaire de justice, the officer who records facts for use in court, can prove it. From abroad, the report is the safest of the three.
4. Wait before you build. Third parties have two months from the first day of display to go to the tribunal administratif, the administrative court. The mayor has three months from the decision to withdraw an unlawful permit.
5. Ask for proof that no appeal was filed. The court’s registry will issue a document saying whether an appeal against the permit has been lodged.
6. If an appeal arrives, don’t start. An appeal doesn’t suspend the permit, so the law lets you carry on, and the October ruling is the reason to stop. The administrative judge can give you time to fix a defect that is fixable, even after the works are finished.

If the permit is annulled after the building is finished, the neighbour has two years to sue, and that time is worth using. Check whether the rule that sank the permit still applies, apply for a new permit where a compliant one is possible, and take advice on a claim against the commune.

If you’re buying a recently built or extended house

The article is aimed at “the owner”, with no mention of who did the building. A buyer therefore has good reason to check the permit history of a house, an extension or a garage finished in the last few years. Ask the seller, through your notaire, for the following.

• The permit and any later permits that modified it.
• Proof of when and how it was displayed on site.
• The date the completion declaration reached the mairie. Six months after completion, nobody can ask a court to annul the permit.
• The registry’s document showing that no appeal was filed.
• The état des risques, the risk statement a seller must hand over, which says whether a risk prevention plan covers the property.

If an appeal is pending or the permit has been annulled, ask the notaire to make the purchase conditional on the outcome, or walk away. Our guides to the two French pre-sale contracts and to buying property in France step by step explain where conditions go.

If you’re the neighbour

Owners abroad are neighbours too, and the clock runs whether or not you’re there to see the panel next door. The deadlines below are short, and missing one ends the claim.

The second line reflects a recent change. Before a law of 26 November 2025, an appeal to the mayor lodged in time extended the deadline for going to court. It no longer does, so a polite letter to the mairie can cost you the case if you wait for the answer.

You need a direct interest: the project must affect how you occupy, use or enjoy your own property. The government’s guidance on contesting a neighbour’s permit confirms that you don’t need a lawyer before the tribunal administratif and that the claim can be filed online. An abusive claim can bring a fine of up to €10,000.

Outside the protected zones, the planning route ends in damages. A claim based on a private-law rule, such as an easement or a boundary distance, falls outside the article, as the Conseil constitutionnel noted in 2017. Our guide to boundary disputes in France covers those. A claim for abnormal neighbourhood disturbance, the trouble anormal de voisinage, is separate as well. The Vence neighbours brought one for damages as a fallback.

How this differs from England

A reader in England would expect the council to deal with a building that breaches planning control. The government’s planning enforcement guidance gives that job to the local planning authority and makes the power discretionary. A neighbour who thinks a permission is unlawful has six weeks to apply for judicial review. In France, the neighbour who wins before the administrative court then holds, in a protected zone, a civil claim of their own against you. Since October, the judge who hears it can’t weigh how little the neighbour has lost.

Our view

The court’s logic is hard to fault on its own terms. An unlawful building stays unlawful until it complies, and a neighbour shouldn’t have to live with it because a judge finds the shadow short. The weak point is who pays. The owner in this kind of case built with a permit issued by the town hall, and the law says a permit can only go to a project that complies. The mistake was the authority’s, yet the demolition order lands on the owner, who must then start a second lawsuit to recover the cost. The wording of the article left room for a judge to weigh a metre of extra view against a whole building, and the advocate general said so. The court chose certainty and left any softening to Parliament. Until Parliament acts, we’d treat a French permit as provisional until every appeal period has run out.

Readers, have you built or extended in France, and did you wait out the appeal period or did the builder start the week the permit arrived? Has a neighbour’s project ever cost you light or a view, and did you spot the panel in time? Would you buy a house whose permit was still under appeal?

FAQ: annulled permits and demolition in France

Can a French court order the demolition of a building that had a permit?

Yes, if an administrative court has annulled the permit and the conditions of article L. 480-13 of the planning code are met. The building must stand in one of 14 kinds of protected zone, and a neighbour must suffer personal harm caused by the breach of the planning rule.

Does the neighbour’s harm have to be serious?

No. On 1 October 2026, the Cour de cassation held that the judge must order demolition whatever the degree of harm, unless demolition is impossible. In that case, the harm was about a metre of extra view and up to two and a half hours of lost sun a day on an outbuilding.

Which zones are protected?

The list includes the 100-metre coastal strip, national park cores, nature reserves, listed sites, Natura 2000 sites, heritage conservation areas, the surroundings of historic monuments, sectors protected by the local plan, and risk-plan zones where building is restricted.

How long does the neighbour have to act?

The neighbour has two months from the first day of display to challenge the permit before the tribunal administratif, then two years from the final annulment to sue for demolition before the civil court.

Is the whole building demolished?

No. The order goes only as far as needed to make the building comply with the rule that was broken. If only part of the building breaks the rule, the order covers that part.

Can the owner claim against the commune?

Yes. Issuing an unlawful permit is a fault, and the permit holder can seek compensation from the commune before the administrative court. It’s a separate claim with its own proof of loss.