Abnormal Neighbourhood Disturbance: When Your Neighbour's Works Become a Nuisance

Imagine: you live in Cholet, in a peaceful house. One morning, your neighbour begins extension works. For weeks, there is the noise of jackhammers, dust invading your garden, workers blocking access to your garage. You are exasperated, but you wonder: can I really claim anything from him? After all, these are not works in my home, and it is companies carrying them out, not him directly.

This is exactly the question that the French Court of Cassation decided in 1992 in judgment no. 90-21.072. A landmark decision, because it recalled a fundamental principle: no one may cause an abnormal neighbourhood disturbance to another, whether the works are carried out by the owner himself or by companies he mandates. This case, arising from a dispute between neighbours, reshaped the boundaries of liability for construction site nuisances.

So, concretely, what does this change for you, owner or tenant in Angers or elsewhere? This article analyses this decision, explains your rights, and gives you the keys to act if you suffer excessive nuisance. Do not let a neighbour go unpunished on the pretext that he did not wield the trowel himself.

The facts: a story like so many everyday ones

Mr. Y is the owner of a house in Cholet. His neighbour, Mr. X, decides to carry out extension works on his own land. He entrusts the site to a masonry company and other trades. For several months, Mr. Y suffers significant nuisances: intense noise from 7am, dust infiltrating his home, vibrations cracking his boundary wall, and even workers regularly parking in front of his gate, blocking it.

Mr. Y considers that these inconveniences exceed what a neighbour can reasonably tolerate. He therefore brings legal proceedings against Mr. X to obtain compensation for his loss (i.e., damages for the harm suffered). He relies on abnormal neighbourhood disturbance, a well-known principle of French law which prohibits causing others nuisances exceeding the normal inconveniences of neighbourhood.

The court of first instance examines the case. But the judge, in his judgment, dismisses Mr. Y's claim. Why? Because, according to him, Mr. Y does not provide proof that the workers were under the direct orders of Mr. X or that Mr. X personally directed them. In other words, the judge considers that since Mr. X did not himself cause the nuisances, he cannot be held responsible. Mr. Y appeals. The case goes up to the Court of Cassation, the highest French judicial court.

The reasoning of the court — analysed

The Court of Cassation quashes the judgment (i.e., it annuls it). It criticises the lower judges for not having considered whether the interventions of the companies had caused nuisances exceeding the normal inconveniences of neighbourhood, regardless of the question of who directed the workers.

The legal basis of this decision is the principle that no one may cause an abnormal neighbourhood disturbance to another. This principle, although not found in a specific article of the Civil Code, is consistently applied by the courts. It is now codified in Article 1240 of the Civil Code (which provides that 'any act of man which causes damage to another obliges the person by whose fault it occurred to repair it'), but also and especially in Article 1253 (liability for things under one's control). In matters of neighbourhood, this is strict liability: the mere fact of causing an abnormal disturbance engages your liability, even if you have committed no intentional fault.

In this case, the Court of Cassation clarifies that the owner who carries out works on his land is liable for nuisances caused by those works, even if he did not personally direct the workers. The important point is not who held the hammer, but whether the nuisances suffered by the neighbour exceed the normal inconveniences of neighbourhood. In other words, you cannot hide behind the company you mandated to escape your liability. It is you, as the owner, who is primarily responsible towards your neighbours.

This decision is neither an evolution nor a reversal: it confirms consistent case law. However, it has the merit of recalling a crucial point: simply delegating works to a company does not exonerate you from your obligation not to disturb your neighbours.

What this changes for you — concretely

Whether you are an owner-landlord, tenant, buyer, or co-owner, this decision has immediate practical implications. Let's take an example in Angers: you own a flat in the city centre, and you decide to have the roof repaired. You entrust the works to a company. For three weeks, your downstairs neighbours suffer water infiltration due to a poorly placed tarpaulin by the company. Their loss is estimated at €2,500 for repairs and €500 for loss of enjoyment. Thanks to this case law, they can claim these sums directly from you, without having to prove that you personally mismanaged the workers. You will be required to compensate them, even if the company is at fault.

For a tenant, this is additional protection: if your landlord carries out works in another part of the building, and those works cause you excessive nuisances (noise, dust, loss of enjoyment), you can take action against him. On the other hand, if you carry out works in your own dwelling, you will be responsible towards your neighbours.

For a co-owner, works in the common parts (rendering, lift) are decided by the co-owners' association. But if the nuisances are excessive, it is the association that may be held liable, not the company.

In practice, remember that you must always ensure that the companies you engage respect the hours, noise standards and necessary precautions so as not to disturb your neighbours. In the event of a dispute, you can claim against the company, but it is you who will first be sued by your neighbour.

Four tips to avoid this type of dispute

• Anticipate nuisances: before starting works, inform your neighbours in writing (registered letter or simple letter) of the nature of the works, their duration and the hours. Offer them a telephone number in case of problems. This shows your good faith and can defuse tensions.
• Choose responsible companies: require your contractors to comply with professional standards and working hours. Include in your contract a clause obliging them to take all precautions to limit nuisances (tarpaulins, access protection, daily cleaning).
• Get insured: check that your public liability insurance covers damage caused to neighbours during the works. If you are a tenant, your home insurance may also be useful.
• React quickly to complaints: if a neighbour complains, do not ignore it. Go and see them, check the facts, and take immediate corrective measures. Offering an amicable compensation can avoid a long and costly trial.

Further reading: related case law and developments

This 1992 decision is part of consistent case law. One can cite, for example, a judgment of the Court of Cassation of 24 November 1993 (no. 91-17.767) which held that the owner is liable for disturbances caused by works of his tenant, if he has not taken the necessary measures to stop them. More recently, the Court recalled in a judgment of 4 July 2019 (no. 18-17.042) that abnormal neighbourhood disturbance is assessed objectively, without needing to prove fault on the part of the neighbour.

The trend of the courts is therefore to protect victims of nuisances, by facilitating their legal action. It is no longer necessary to prove the neighbour's fault, only the abnormality of the disturbance. This means that even perfectly legal works (with planning permission) can engage the liability of their author if they cause excessive harm.

For the future, one can expect judges to continue to apply this principle rigorously, particularly in dense urban areas like Angers or Cholet, where neighbourhood disputes are common. Mediation and conciliation are encouraged, but if they fail, recourse to the court remains an effective option.

In practice: what to do

Checklist: What to do if you suffer nuisance from works

1. Record the facts: take photos, videos, note the dates and times of nuisances, the decibels (with an app) if possible.
2. Speak to your neighbour: before any legal action, try an amicable discussion. Calmly explain what you are suffering and ask him to take measures.
3. Send a registered letter: if dialogue fails, send a registered letter with acknowledgement of receipt to your neighbour describing the nuisances and asking him to stop within 8 days. Keep a copy.
4. Call a conciliator of justice: before going to court, you can free of charge refer the matter to a conciliator of justice (at your town hall or local court). This is a quick and cost-free procedure.
5. Consult a lawyer: if no amicable solution is found, a lawyer specialised in property law can assess your chances and bring legal proceedings. In Angers or Cholet, you can make an appointment with Maître Zakine.

Are you in a similar situation? A first 30-minute consultation with Maître Zakine (€45) may save you months of proceedings — and often much more. Book an appointment →