Abnormal Neighbourhood Disturbance: Can a Compliant Construction Excuse It?

Imagine: you own a house in Six-Fours-les-Plages, with an unobstructed sea view and a sun-drenched terrace. One day, your neighbour starts work: he is extending his car body repair workshop. The noise increases, and above all, your house loses some of its sunlight. You complain, but your neighbour objects that everything is in order: planning permission, aesthetic standards complied with. So, what can you do? Does the law give you redress despite the administrative compliance?

This question was settled by the French Supreme Court in a judgment of 10 July 1991 (No. 90-14.708), which remains authoritative. In essence, the highest judicial court holds that compliance of a construction with planning rules is not a bar to an action for abnormal neighbourhood disturbance. The lower courts retain full discretion to assess, on a case-by-case basis, whether the nuisances exceed the normal inconveniences of neighbourhood life.

In other words, a valid planning permission does not protect you from legal action if your neighbours suffer excessive nuisances. But the burden is on them to prove that these nuisances exceed a tolerable threshold. How is this threshold assessed? That is what we will examine.

The facts: a story that happens every day

In this case, the Y... spouses owned a dwelling house in Six-Fours-les-Plages. For many years, almost opposite their home, Mr. X operated a car body repair workshop. One day, Mr. X decided to expand his business and build new premises. The works were carried out in accordance with the planning permission granted, and the construction presented a functional but good quality aesthetic, according to the judges.

But the Y... spouses did not agree. They brought proceedings to obtain compensation for the abnormal neighbourhood disturbance (noise nuisance and loss of sunlight) caused by this extension. Their argument: the increase in the body repair activity had led to more noise, and the new construction had deprived them of daylight.

The Court of Appeal dismissed their claim. For the lower court, the alleged nuisances did not exceed the normal inconveniences of neighbourhood life. In particular, it noted that the disputed construction had been built in accordance with the applicable regulations, that it had a functional but good quality aesthetic, that the body repair activity had already been carried out for many years almost opposite the claimants' home, and that it had not been shown that the extension had led to a significant increase in noise. As for the loss of sunlight, it did not exceed the normal inconveniences of neighbourhood life because of the originally poor orientation of the Y... spouses' house.

The Y... spouses then appealed to the Supreme Court. They argued that the Court of Appeal had violated the principle of liability for abnormal neighbourhood disturbance (rooted in Article 1240 of the Civil Code, which requires compensation for damage caused by one's fault) and Article L. 112-16 of the Code de la construction et de l'habitation (which deals with the builder's liability). But the Supreme Court dismissed their appeal, holding that the Court of Appeal had exercised its full discretion in assessing the facts and had legally justified its decision.

The reasoning of the court — dissected

The heart of this judgment lies in the reminder of the full discretion of the lower courts to assess abnormal neighbourhood disturbance. This principle, well known to lawyer lawyers, means that the appeal judges (the magistrates of the Court of Appeal) have the final say on the assessment of the facts, subject to errors of law. Here, the Supreme Court does not review whether the nuisances were abnormal or not; it only checks that the judges took into account the correct criteria and did not make a legal mistake.

What are these criteria? The Court of Appeal listed several elements: compliance of the construction with planning rules (planning permission), its aesthetics (functional but good quality), the pre-existence of the body repair activity (already present before the extension), the lack of proof of a significant increase in noise, and the initially poor orientation of the claimants' house (which already limited sunlight).

What few people know is that administrative compliance is not everything. A construction can be perfectly lawful and yet give rise to an abnormal disturbance if the actual nuisances exceed a tolerable threshold. But in this case, the judges considered that this threshold was not reached. Why? Because the activity pre-existed, the extension did not significantly aggravate the noise, and the loss of sunlight was attributable to the original configuration of the house, not to the new construction.

Be careful, however: this judgment does not mean that a compliant construction is always exempt from abnormal disturbance. It is a decision on the facts, based on specific circumstances. In a different configuration, the outcome could have been different. For example, if the extension had tripled the volume of activity, or if the neighbours' house had faced south, the balance could have tipped in their favour.

In short, the judges must strike a balance between the property rights of the builder (who has the right to erect compliant constructions) and the neighbours' right to respect for their peace and quiet. Each situation is unique.

What this means for you — in practice

For an owner planning works, this decision reminds that compliance with planning rules is necessary but not sufficient. Before extending your workshop in Hyères or raising your house in Six-Fours-les-Plages, think about assessing the impact on your neighbours. If nuisances are foreseeable (noise, loss of view, overshadowing), it is better to anticipate them and, if possible, minimise them. Otherwise, you risk a lawsuit, even if your works are authorised.

For a tenant or owner suffering nuisances, this judgment gives you a weapon: you can take action even if the construction is compliant. But you will need to prove that the nuisances exceed the normal inconveniences of neighbourhood life. How? By building a strong case: bailiff's reports, sound level measurements, photos, witness statements, and any evidence showing an aggravation compared to the previous situation. For example, if a car garage sets up next to your home in Hyères, and the engine noise prevents you from sleeping, you may obtain compensation if you prove that the noise level exceeds regulatory thresholds or local customs.

If you are a buyer, be vigilant: before buying a house in Six-Fours-les-Plages, find out about construction projects nearby. A planning permission granted for a three-storey building may lawfully deprive you of sunlight, but if the loss is excessive, you may be able to obtain damages.

undefined, I have come across cases where owners relied entirely on administrative compliance, thinking they were safe. Mistake: abnormal neighbourhood disturbance is an autonomous concept, which can override administrative legality. The 1991 judgment confirms this, even though it ruled in favour of the builder in that particular case.

Four tips to avoid this type of dispute

• Before carrying out works, carry out a brief impact assessment: evaluate potential nuisances (noise, shadow, view) and discuss them with your neighbours. An amicable solution (planting trees, soundproofing) can avoid a lawsuit.
• Keep all evidence of the prior state: photos, videos, statements. In case of a dispute, you will be able to demonstrate the aggravation of the nuisances.
• If you suffer nuisances, act quickly: have the disturbances recorded by a bailiff (huissier de justice) as soon as they appear. The limitation period (5 years for extra-contractual matters) runs from the manifestation of the damage.
• Do not hesitate to consult a lawyer lawyer: a professional view of your situation can save you from mistakes. For example, a simple registered letter may sometimes be enough to stop the disturbance.

Further reading: related case law and developments

The 1991 decision is part of a consistent line of the Supreme Court, which recalls that administrative compliance does not exclude liability for abnormal neighbourhood disturbance. One can cite a judgment of 24 November 1993 (No. 91-22.048) in which the Court held that "compliance of a construction with administrative requirements cannot have the effect of barring an action for compensation for abnormal neighbourhood disturbance". This position has been reaffirmed several times.

However, a notable development concerns the consideration of pre-existence: the Law of 19 July 1976 (now codified in Article L. 112-16 of the Code de la construction et de l'habitation) provides that the builder is not liable for disturbances if the activity existed before the neighbours moved in. But this exception only applies if the activity is compliant with the rules in force. The 1991 judgment falls within this framework: the body repair activity was pre-existing, and the extension did not significantly aggravate the nuisances. The current trend is therefore towards a concrete and pragmatic assessment by the lower courts, with a certain tolerance for pre-existing activities.

In practice: what to do

Q: Can I sue my neighbour for loss of sunlight if his construction complies with the local planning plan (PLU)?
A: Yes, if the loss exceeds the normal inconveniences of neighbourhood life. But you will need to prove the abnormality (e.g., a loss of more than 50% of sunlight in winter).

Q: What is the time limit to act?
A: You have 5 years from the manifestation of the damage (e.g., completion of works). After this period, your action is time-barred.

Q: What compensation can I obtain?
A: Damages for the loss suffered (reduction in property value, loss of enjoyment) and sometimes an order to cease the disturbance (partial demolition, restriction of activity).

Q: Do I have to use a lawyer?
A: Yes, before the tribunal judiciaire, legal representation is compulsory for claims exceeding €10,000. For small claims, the juge de proximité can be seised without a lawyer.

Q: What should I do if my neighbour announces works?
A: Find out about the project, participate in any public inquiry if necessary, and if nuisances are foreseeable, contact a lawyer before the works begin.

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 →