You bought the stone house in the Dordogne, or the village flat near Carcassonne, for the quiet life. Then the quiet ended. Your French neighbour has moved the fence two metres into your garden while you were back in Britain. His leylandii now tower over your terrace and block the evening sun. Or the house next door has become a party gîte, and every Friday night brings shouting, music and car doors slamming until 2 a.m. You write in English, he answers in French, the mairie shrugs, and you are 700 miles away wondering whether French law protects a British owner at all.

It does, and powerfully. French neighbour law is one of the oldest and most owner-friendly parts of the Civil Code, and it applies to you exactly as it applies to a French owner: Brexit changed your residence and tax position, not your standing before the civil courts. But the system rewards method and punishes improvisation. The boundary is not where the fence happens to stand. A hedge is not trimmed by shouting over it. Noise is not compensated because you are annoyed, but because you can prove a disturbance beyond what neighbours must normally tolerate, with dated evidence and the right first steps. This guide walks you through both battlefields in the order a French lawyer handles them: first, the land itself, fixing the boundary line and removing what should never have been built or planted; second, daily life, proving an abnormal disturbance and forcing it to stop, with damages. Every rule below is quoted from the statute or ruling that creates it, so you can check each one against the official text before you act.

I. Your French neighbour has taken part of your land or built over the boundary: how to prove the line and get it back

A. Where exactly is the boundary? The bornage that fixes the line, and what your fence, title deeds and cadastre really prove

Start with the uncomfortable truth: in France, the fence is not the boundary. A fence is a practical barrier that either owner may have moved, replaced or misunderstood over the years. The legal boundary is an invisible line fixed by title deeds, old boundary-marking records and physical markers, and only a formal boundary-setting procedure can settle it once the neighbours disagree. French law gives every owner a direct tool for this. Article 646 of the Civil Code provides: "Tout propriétaire peut obliger son voisin au bornage de leurs propriétés contiguës. Le bornage se fait à frais communs." The bornage, the formal fixing of the boundary between adjoining plots, can be done by agreement or by a judge, and its cost is shared.

Behind this short text sits the strongest property rule in French law. Article 544 of the Civil Code states: "La propriété est le droit de jouir et disposer des choses de la manière la plus absolue, pourvu qu'on n'en fasse pas un usage prohibé par les lois ou par les règlements." And Article 545 adds: "Nul ne peut être contraint de céder sa propriété, si ce n'est pour cause d'utilité publique, et moyennant une juste et préalable indemnité." Nobody takes a slice of your garden by persistence. If the line is yours, the law returns it to you. The difficulty is never the principle. It is the proof.

British buyers often arrive with two documents they overrate: the estate agent's plan and the cadastral extract. The French cadastre, the land register map held by the tax administration, exists mainly to calculate property tax. It shows approximate plot shapes, not guaranteed legal limits, and French courts say so openly: a cadastral line is an indication, a tax document, not a title. Your titre de propriété, the authentic deed signed before the notaire when you bought, matters far more, especially if it refers to an earlier bornage or quotes precise measurements and abutting owners. Dig out everything: the deed, any annexed surveyor plan, the previous owner's paperwork, old photographs showing where the fence stood years ago, and any written exchange with the neighbour about the line. If you bought through a company such as an SCI, the family property company many British families use, the same papers are usually in the company file at the notaire's office, and you can ask for copies.

The practical path runs in three stages, and you should follow them in order. First, write to the neighbour, in French, by lettre recommandée avec accusé de réception, the registered letter with proof of delivery that French procedure expects for every serious step. Describe the line as you believe it runs, attach the deed extract or plan, and propose a bornage amiable, an agreed boundary-setting, carried out by a géomètre-expert, the licensed surveyor who alone can draw up a procès-verbal de bornage, the signed boundary record. That record, signed by both owners and filed for registration, fixes the line permanently between you, and it binds your future buyers too. Many disputes die at this stage, because the surveyor's laser and the old markers settle what shouting cannot. Keep a copy of everything and a diary of dates: who moved what, when you first noticed, what was said. If you live in Britain and visit only in August, say when you discovered the change, because your reaction time will be judged from discovery, and long silence can be read as acceptance.

Second, if the neighbour refuses the surveyor or rejects the findings, the same Article 646 lets you force the issue before the tribunal judiciaire, the ordinary civil court. The judge appoints an expert, usually another géomètre-expert, who studies the deeds, the old markers, aerial photographs and the lie of the land, then proposes the line. A recent Cour de cassation ruling shows exactly how courts weigh this material. On 27 March 2025, the Third Civil Chamber, in appeal number H 23-13.760, approved judges who had fixed a rural boundary from the expert's mix of old concrete markers, an ancient cadastral plan and aerial photographs, holding: "Appréciant ainsi souverainement la valeur des divers indices soumis à son examen, la cour d'appel a pu, s'appropriant les conclusions de l'expert, fixer la limite séparative comme elle l'a fait." In plain terms, the trial judges are free to weigh every clue, and the higher court will not redo their homework. Your job is therefore to feed the expert: deeds, photographs, witness statements from builders or previous owners, anything dated. The same ruling is a warning about costs. The boundary-marking itself is shared, but survey fees ordered as court costs and the costs of the losing party's stubbornness can be left on the loser, alongside the standard Article 700 payment toward the winner's legal fees. Refusing a reasonable joint survey is an expensive gamble.

Third, think about time, because time can quietly move the line against you. French law allows a person who holds land openly as owner, continuously, peacefully, publicly and unambiguously, to become its owner after thirty years, even without a deed. The conditions are strict. Article 2261 of the Civil Code sets five cumulative conditions for such possession: it must be continuous and uninterrupted, peaceful, public, unambiguous, and held as owner. A neighbour who has farmed your strip openly for decades, paid no rent and acted as owner may one day claim it. Short occupations, disputed occupations and occupation with your permission do not count. But the lesson for a British second-home owner is obvious: inspect your boundaries on every visit, photograph them, and react in writing at the first sign of movement. A fence that creeps two metres this year becomes an argument about thirty years' possession later. If the encroachment is recent and obvious, say so in your first letter and act within months, not years.

B. Trees, hedges, windows and the wall on your land: distances, views and getting the encroachment removed

Once the line is known, or even while it is being established, the familiar grievances each have their own rule, and most of them favour the complaining neighbour more than British owners expect. Take trees and hedges first. French law does not let your neighbour plant whatever he likes wherever he likes. Article 671 of the Civil Code permits trees and shrubs near the boundary only at the distances set by local regulations or established custom, failing which: "qu'à la distance de deux mètres de la ligne séparative des deux héritages pour les plantations dont la hauteur dépasse deux mètres, et à la distance d'un demi-mètre pour les autres plantations". Two metres for anything above two metres high, half a metre for the rest. Your commune or département may impose different figures, so check the local règlement or recognised usage before writing, but the two-metre rule is the national default and it covers the classic Dordogne leylandii screen.

The remedy is equally direct. Article 672 provides: "Le voisin peut exiger que les arbres, arbrisseaux et arbustes, plantés à une distance moindre que la distance légale, soient arrachés ou réduits à la hauteur déterminée dans l'article précédent, à moins qu'il n'y ait titre, destination du père de famille ou prescription trentenaire." You can demand removal or cutting back to the legal height, unless the neighbour holds a deed right, the planting results from a historical division of one estate, or thirty years have passed. Note the thirty-year exception: the giant cedar planted in 1970 in breach of the rules is probably safe now, while the fast-growing screen planted five years ago is not. Age matters, so ask the mairie or old neighbours when the planting dates from before assuming.

Overhanging growth follows a different, very practical logic that every British gardener should memorise. Article 673 states: "Celui sur la propriété duquel avancent les branches des arbres, arbustes et arbrisseaux du voisin peut contraindre celui-ci à les couper." You can force your neighbour to cut back the branches hanging over your land. Fallen fruit from those branches is yours. But for roots, brambles and twigs pushing under the boundary, you may cut them yourself at the dividing line, and, crucially: "Le droit de couper les racines, ronces et brindilles ou de faire couper les branches des arbres, arbustes ou arbrisseaux est imprescriptible." That right never expires. Do not, however, lean over and saw through the trunk on his side, or poison the tree: that is criminal damage, and it converts your strong civil case into a police matter against you. Demand in writing, then let the judge order the cutting.

Windows and overlooking openings obey fixed measurements that surprise many British renovators. A vue droite, a direct view such as a window, French window or balcony facing the neighbour's land, is governed by Article 678: "On ne peut avoir des vues droites ou fenêtres d'aspect, ni balcons ou autres semblables saillies sur l'héritage clos ou non clos de son voisin, s'il n'y a dix-neuf décimètres de distance entre le mur où on les pratique et ledit héritage". Nineteen decimetres means 1.90 metres from the wall to the boundary. Side or oblique views need six decimetres, 60 centimetres, under Article 679: "On ne peut, sous la même réserve, avoir des vues par côté ou obliques sur le même héritage, s'il n'y a six décimètres de distance." Small panes of fixed frosted glass set high in a wall, the jours de souffrance that light a stairwell without letting anyone look through, are tolerated and create no rights. But a proper window opened 1.20 metres from your terrace can be ordered closed or fitted with obscure glass. If you are the one renovating, check these distances before cutting the opening: French planning permission does not cure a civil-code breach, and the neighbour's claim survives the mairie's stamp.

Finally, the wall, extension or terrace built partly on your soil. Here French law is at its most uncompromising, and British owners should grasp the point fully: even a small, unintentional overlap can mean demolition. On 3 July 2025, the Third Civil Chamber of the Cour de cassation, in appeal number Z 23-12.925, restated the classic rule: "tout propriétaire est en droit d'obtenir la démolition d'un ouvrage empiétant sur son fonds, sans que son action puisse donner lieu à faute ou abus." Any owner may obtain demolition of a structure encroaching on his land, and bringing that claim is never in itself wrongful or abusive. In that case the appeal court had refused demolition after balancing the builder's right to housing against the owner's property, and the higher court quashed that reasoning: expulsion and demolition, founded on Articles 544 and 545, are the only measures that restore the owner's full right, and the resulting interference with the builder's home is not disproportionate given the gravity of the attack on ownership. Do not read this as a licence to demand demolition over three centimetres of gutter without talking first; judges retain ways to manage timing and methods. But understand the balance of power: the neighbour whose garage sits one metre over your line negotiates from weakness, not strength, and your registered letter proposing a buy-back of the strip or a paid easement will be read with that ruling in mind.

II. Your French neighbour makes daily life unbearable: noise, parties, smells and lost light — how to prove an abnormal disturbance and stop it

A. What counts as abnormal? The no-fault rule, the evidence that wins cases and the prior-activity defence that can defeat you

French nuisance law starts from an idea with no real English equivalent, the trouble anormal de voisinage, the abnormal neighbourhood disturbance. Since 2025 it has its own statutory home. Article 1253 of the Civil Code, in force, provides: "Le propriétaire, le locataire, l'occupant sans titre, le bénéficiaire d'un titre ayant pour objet principal de l'autoriser à occuper ou à exploiter un fonds, le maître d'ouvrage ou celui qui en exerce les pouvoirs qui est à l'origine d'un trouble excédant les inconvénients normaux de voisinage est responsable de plein droit du dommage qui en résulte." Anyone at the origin of a disturbance exceeding the normal inconveniences of neighbourhood life, owner or tenant, builder or operator, is automatically liable for the resulting harm. Responsable de plein droit means no-fault liability: you do not have to prove your neighbour was careless, malicious or in breach of a regulation. You have to prove a disturbance, that it exceeds what neighbours must normally accept, and the harm it causes you. A neighbour who complied with every regulation can still lose if the disturbance is abnormal in its intensity, duration, repetition or timing.

Abnormality is judged concretely, place by place. Judges weigh the location, rural hamlet or dense town centre, the time, day or night, working week or Sunday morning, the frequency, the intensity and the duration. A cockerel in a farming village, tractors at harvest, church bells: rural life carries its own normal inconveniences. The same noise under your bedroom window in a quiet residential lane, every weekend until dawn, from a holiday rental that did not exist two years ago, is a different case. Your British ear for what is reasonable is not the test, and saying "in England this would never be allowed" helps nobody. The test is the French reasonable neighbour in your exact setting. That is why evidence must be local and dated: what happens, when, how often, how loud, and what changed.

Build the file the way French courts like it, from the first week. Keep a dated log of every episode with times and a short description. Ask a commissaire de justice, the court officer formerly called huissier, to draw up a constat, an official on-the-spot record: he attends, listens, measures and writes findings that courts trust far more than your own notes. Sound-measurement reports from an acoustician help for music, heat pumps and workshops. Collect attestations, the signed witness statements of other neighbours made in the statutory form with identity and the warning about false testimony. Keep medical certificates if sleep loss or anxiety sent you to the doctor, invoices if you fled to a hotel, booking calendars if the noise comes from short-term lets, and every letter you sent. Photographs and phone videos support the story but rarely prove noise on their own. Above all, complain in writing early and calmly: the judge will ask what you did before suing, and a file that starts with threats or with a year of silence is weaker than one that starts with two polite registered letters.

Two 2025 Cour de cassation rulings show how strictly the higher court polices judicial reasoning in this field, in both directions. On 2 October 2025, the Third Civil Chamber, appeal number W 23-22.513, recalled: "Vu le principe selon lequel nul ne doit causer à autrui un trouble excédant les inconvénients normaux du voisinage". A farming business complained that its neighbour's new shed blocked the ventilation of its livestock building. The appeal court had dismissed the claim because vegetation had already blocked the light before the works. The higher court quashed the decision: the judges had failed to investigate whether the shed obstructed ventilation and deprived the building of sufficient airflow, of a kind that could cause the farmer a disturbance exceeding normal neighbourhood inconveniences, so "la cour d'appel n'a pas donné de base légale à sa décision." The lesson cuts both ways: courts must examine the real mechanism of harm you allege, not wave the claim away, but you must spell that mechanism out with technical proof, airflow, decibels, shadows, not general annoyance.

The mirror ruling, given on 27 March 2025 in appeal number H 23-21.076, warns against winning too easily. There, an appeal court had found an abnormal disturbance because a new gable wall, four metres away instead of the former seven, significantly reduced the view from a balcony and affected enjoyment and property value. The Cour de cassation recalled: "Vu le principe selon lequel nul ne peut causer à autrui un trouble anormal de voisinage", then quashed, because the judges had not investigated, as asked, "si l'urbanisation de la zone où se trouvaient les immeubles n'était pas de nature à écarter l'existence d'un trouble anormal", whether the developing urban setting ruled out any abnormality. In a growing suburb, losing some view to lawful building is part of normal neighbourhood life. Translate this to your case honestly before spending money: the isolated barking dog at night is a strong case; the new compliant house that narrows your valley view in an expanding village is a weak one, and your lawyer should tell you so at the first meeting.

Finally, know the defence that defeats many newcomer claims: anteriority. Article 1253 keeps an exception for activities that existed before you acquired or took possession, provided they complied with the rules and continue in the same conditions without aggravation. The farm whose smells and noises predate your purchase, run lawfully and unchanged, will normally defeat your claim even if the disturbance is real. The gîte activity that started after you bought, the workshop extended last year, the heat pump installed in June: none of them enjoys that shield. Check dates before alleging: when did you buy, when did the activity start, did it grow. And note the reservation inside Article 1253 for farm disputes under the rural code: agricultural cases have their own overlay, so take advice before challenging a working farm next door.

B. The mandatory first steps, the five-year deadline and the judge who can order your neighbour to stop and pay

French procedure now forces you to try settlement before suing, and neighbour cases are named explicitly. Article 750-1 of the Code of Civil Procedure states that: "à peine d'irrecevabilité que le juge peut prononcer d'office, la demande en justice est précédée, au choix des parties, d'une tentative de conciliation menée par un conciliateur de justice, d'une tentative de médiation ou d'une tentative de procédure participative, lorsqu'elle tend au paiement d'une somme n'excédant pas 5 000 euros ou lorsqu'elle est relative à l'une des actions mentionnées aux articles R. 211-3-4 et R. 211-3-8 du code de l'organisation judiciaire ou à un trouble anormal de voisinage." Skip the prior conciliation, mediation or participatory step and the judge can declare your claim inadmissible on his own motion, without the other side even asking. This is not guidance. It is a gate.

In practice the conciliateur de justice, the volunteer local mediator, is the natural first door. The official service-public.fr page for this free route is here: conciliateur de justice on service-public.fr. He receives both sides at the mairie or maison de justice, hears each out, visits if needed and proposes a written agreement. For a British owner this has real advantages: it is free, local, relatively quick, and many French neighbours who ignore an English letter will sit down with an official mediator. Bring your log, your constat, your photographs and a realistic proposal: cut the hedge to two metres by a date, move the heat pump, cap party nights, pay for the surveyor. Agreements signed before the conciliateur can be given court enforceability. If the neighbour refuses to attend or no agreement emerges, you receive proof that the attempt was made, and the gate to the court opens. Mediation by a professional mediator and the procédure participative, a formal negotiated procedure conducted by your lawyers, are the alternatives the statute allows, and they suit higher-value or more technical disputes.

Your second mandatory reflex is the mise en demeure, the formal demand letter. Send it by registered letter with proof of delivery, in French, identifying the disturbance precisely, the dates, the rule breached or the abnormality alleged, what you require, and a deadline, typically fifteen to thirty days. Demand cessation and, where relevant, payment. This letter starts interest running on damages, demonstrates your good faith, and often produces results, because a neighbour who learns that demolition of his encroachment or damages for two summers of noise are now priced and dated suddenly prefers negotiation. Keep the tone firm and factual. Threats, insults and allegations you cannot prove will be exhibited against you later.

Then watch the clock. Claims for damages in neighbour disputes are personal actions subject to the five-year limitation of Article 2224 of the Civil Code: "Les actions personnelles ou mobilières se prescrivent par cinq ans à compter du jour où le titulaire d'un droit a connu ou aurait dû connaître les faits lui permettant de l'exercer." Five years from when you knew, or should have known, the facts grounding your claim. Each fresh episode of a continuing disturbance can restart thinking about time, but do not gamble on that: acting within months of discovery keeps every option open and strengthens interim relief. Boundary recovery follows its own long limitation rules for real property, which is another reason to get advice early rather than late. The general damages rule of Article 1240 underpins every compensation claim: "Tout fait quelconque de l'homme, qui cause à autrui un dommage, oblige celui par la faute duquel il est arrivé à le réparer." Prove the harm, from hotel bills to loss of enjoyment to the fall in rental value, and the court prices it.

Choose the judge according to urgency. For the merits, the tribunal judiciaire hears the full case: declaration of the boundary, order to remove plantings or close unlawful views, demolition of the encroachment, cessation of the disturbance and damages. Expect an expert appraisal in technical cases, with the costs advanced and finally allocated by the judge. For emergencies, the référé, the fast interim procedure before the court president, can deliver in weeks what the full case delivers in eighteen months. Article 835 of the Code of Civil Procedure provides that the president may: "peuvent toujours, même en présence d'une contestation sérieuse, prescrire en référé les mesures conservatoires ou de remise en état qui s'imposent, soit pour prévenir un dommage imminent, soit pour faire cesser un trouble manifestement illicite." Building works swallowing your land, a wall going up over the line, a summer of booked party nights ahead: these are classic référé cases, stopping the harm first and arguing the fine points later. Where the debt is not seriously debatable, the same judge may grant "ils peuvent accorder une provision au créancier", an interim payment to the creditor. Ask your lawyer at the first meeting whether your file qualifies for the fast track, because every month of continuing noise or building is harm you could have frozen.

A final word on distance. You do not need to live in France to defend French property. Proceedings are in French, evidence in English should be translated by a certified translator, and hearings can often be handled by your avocat, the French-qualified lawyer, under a written authority, without you flying over for every step. If you are buying or already own through an SCI, the company, represented by its gérant, sues and is sued in its own name. Practical orientation for Britons settled or settling in France is also available from the British government's guide to living in France: gov.uk guidance on living in France. It does not replace legal advice, but it confirms the administrative landscape, residence, healthcare and driving, within which your neighbour dispute sits. For the dispute itself, instruct early, write in French, translate everything, and never let a summer of disturbance pass undocumented.

Conclusion

Neighbour disputes in France reward the owner who works like a surveyor and writes like a clerk. Fix the line through a bornage before arguing about it. Measure the hedge against the two-metre rule, the window against the 1.90-metre rule, and the wall against your title. Demand demolition of encroachments knowing that the Cour de cassation treats it as the owner's right, not an abuse. For noise, smells and lost enjoyment, prove a disturbance beyond normal neighbourhood life with dated logs, an official constat and witness statements, test your case honestly against the setting and the anteriority defence, and never file without the mandatory conciliation attempt. Move within months, use the référé when harm is imminent, and claim every head of loss from hotel nights to lost rental value. Distance from Britain is no obstacle if the paper file is complete. Start the file this week: photograph the boundary, send the registered letter, book the surveyor or the conciliateur, and turn a miserable summer into an enforceable order.

Need a quick opinion on your case

If your neighbour has moved a fence, planted over the boundary, opened a window onto your terrace or turned the house next door into a noise nuisance, our firm offers a telephone consultation within 48 hours with a lawyer of the firm. Call +33 6 46 60 58 22 or write via our contact page. We advise British owners in Paris and Île-de-France as well as residents and second-home owners throughout France, in English, from the first registered letter to the court order.