You live in Britain and you are selling the French holiday home you have owned for years, a stone house in the Dordogne, a flat on the Riviera or a cottage in Brittany. The price is agreed, the notaire has the file, and you assume the hardest part is behind you. In France it is not. Every seller must hand over a survey pack, the dossier de diagnostic technique, and since 2021 the energy rating inside it can be held against you. After completion the buyer has two years from discovering a hidden defect to sue for a price reduction or the unwinding of the sale, and British sellers who renovated the property themselves, or who sell through a family property company, lose the standard exclusion clause that protects ordinary private sellers. This guide explains what your file must contain, who pays when a survey is wrong, when an exclusion clause saves you and when it does not, and how to defend a claim from the United Kingdom, with the exact legal texts and two decisions of the Cour de cassation, France’s highest civil court, that decide these disputes. Everything is explained in English, with each French term translated at first use, so you can follow the file your notaire is building even from several hundred miles away. The stakes are high: a successful hidden-defect claim can cut the price by tens of thousands of euros or unwind the sale entirely, while a well-prepared file usually reduces the dispute to a negotiation you can handle calmly from home.
I. The seller’s survey pack when you sell a French home from Britain
A. The mandatory file, and the energy rating that can now be held against you
French law puts the survey pack at the centre of every sale of a lived-in building. Article L271-4 of the Code de la construction et de l’habitation, the construction and housing code, provides: “En cas de vente de tout ou partie d’un immeuble bâti, un dossier de diagnostic technique, fourni par le vendeur, est annexé à la promesse de vente ou, à défaut de promesse, à l’acte authentique de vente.” Where all or part of a constructed building is sold, a technical survey file, supplied by the seller, is attached to the preliminary contract or, if there is none, to the official deed of sale. The promesse de vente is the preliminary sale contract, usually the compromis, and the acte authentique is the final deed signed before the notaire, the French public officer who completes conveyances. Read the article on Legifrance, article L271-4 of the Code de la construction et de l’habitation. The official service-public.fr page for sellers lists the contents: the energy performance survey, the lead report for homes built before 1 January 1949, the asbestos statement where the building permit was “délivré avant le 1er juillet 1997”, issued before 1 July 1997, the electricity and gas installation reports “si l’installation a plus de 15 ans”, where the installation is more than fifteen years old, the drainage report, the termite statement in delimited zones, the natural and technological risk statement and the noise survey. See the full checklist on service-public.fr, surveys to supply when selling a home. Each survey must be drawn up by a certified professional, and an expired or missing survey gives the buyer a weapon after completion, so ask your notaire for the complete list for your département, the French administrative county, before you sign the preliminary contract, because some surveys depend on the age of the building, the age of the installations and local orders.
The energy survey, the diagnostic de performance énergétique or DPE, deserves its own warning, because its legal weight has changed completely. For years it was background information. In a decision of 21 November 2019, no. 18-23.251, the Cour de cassation recalled that “le DPE mentionné au 6° de ce texte n’a, à la différence des autres documents constituant le dossier de diagnostic technique, qu’une valeur informative”, meaning the energy survey mentioned in that article had, unlike the other documents in the survey file, only an informative value. Read it on Cour de cassation, Third Civil Chamber, 21 November 2019, no. 18-23.251. Since the reform that applies from 1 July 2021, the position is reversed: the ecology ministry states that the DPE has lost its merely informative character to become “pleinement opposable”, fully enforceable against the parties. A wrong rating today therefore carries far more legal consequence than the 2019 case suggests. Validity matters too. Surveys carried out since 1 July 2021 last ten years, and service-public.fr warns that surveys done between 1 January 2018 and 30 June 2021 have expired “depuis le 1er janvier 2025”, since 1 January 2025, and must be redone on a sale or letting. British owners who had a survey done years ago for a previous letting should therefore check the date before reusing it: the general rule is a survey “d’au maximum 10 ans”, no more than ten years old. The current definition of the survey is article L126-26 of the construction and housing code, on Legifrance, article L126-26 of the Code de la construction et de l’habitation, and the practical rules are on service-public.fr, the energy performance survey.
B. Who pays when a survey is wrong: the surveyor, and sometimes you
The 2019 decision is still the best map of what happens when the energy rating is wrong, and its lesson survives the reform. The surveyor had misjudged the property’s energy quality, and the buyers claimed the cost of insulation works. The Cour de cassation approved the appeal court’s answer: “le préjudice subi par les acquéreurs du fait de cette information erronée ne consistait pas dans le coût de l’isolation, mais en une perte de chance de négocier une réduction du prix de vente”. The loss suffered by the buyers because of the wrong information was not the cost of insulation, but the lost chance to negotiate a reduction of the sale price (Cour de cassation, Third Civil Chamber, 21 November 2019, no. 18-23.251). The perte de chance, the lost chance, is the French method for compensating a missed opportunity: the buyer recovers a proportion of the hoped-for price reduction, not the full works bill. Since the survey is now fully enforceable rather than merely informative, a buyer can rely on it more directly, which makes the surveyor’s fault easier to establish and the negotiation-loss argument stronger. For a British seller this has a concrete consequence. The buyer will usually sue the surveyor, the diagnostiqueur, first, but where the surveyor is insolvent, uninsured or simply wrong within a margin the courts tolerate, the disappointed buyer turns to the seller, arguing the seller knew the real position. A seller who lived with single-glazed windows, an oil-fired boiler from the 1980s and winter bills to match will struggle to claim surprise at a flattering A rating. Keep the surveyor’s engagement letter, the invoice, the insurance certificate and every document you gave the surveyor, because your action to pass the bill back to the surveyor depends on proving what you disclosed and what the surveyor did with it.
React the week you receive the surveys, not the week before completion. Read the energy rating the way a buyer will read it: compare the letter with your actual bills and with the physical reality of the house, and if a draughty stone farmhouse with electric radiators comes back rated C, ask the surveyor in writing to revisit before the rating enters the file. A second opinion from another certified surveyor costs a few hundred euros and either confirms the first rating, which closes the debate, or produces a corrected one you can substitute with the first surveyor’s agreement. Never instruct the surveyor to be generous, in writing or otherwise, because that message, once disclosed, destroys both your recourse against the surveyor and your credibility before the court. Tell the notaire about any survey that is close to expiry, since a rating that lapses between the preliminary contract and the final deed must be renewed, and a buyer who discovers at the signing table that the file is out of date will either demand a price cut or walk away. These steps cost little and they transform the survey pack from a formality into the shield it is meant to be.
II. When the buyer sues you after completion, and how to defend from the United Kingdom
A. Hidden defects, exclusion clauses, and the do-it-yourself trap
Beyond the surveys, the general law of hidden defects, the garantie des vices cachés, protects the buyer against serious flaws the seller did not disclose. Article 1641 of the Code civil, the civil code, states: “Le vendeur est tenu de la garantie à raison des défauts cachés de la chose vendue qui la rendent impropre à l’usage auquel on la destine, ou qui diminuent tellement cet usage que l’acheteur ne l’aurait pas acquise, ou n’en aurait donné qu’un moindre prix, s’il les avait connus.” The seller warrants hidden defects in the thing sold that make it unfit for its intended use, or reduce that use so much that the buyer would not have bought, or would have paid less, had the buyer known. Cracks from subsidence, a leaking roof hidden by fresh paint, dry rot in the timbers or a septic tank that does not work are the classic examples in village houses. Read the article on Legifrance, article 1641 of the Code civil. Most French deeds contain an exclusion clause, by which the seller declares selling without warranty for hidden defects. Article 1643 sets its limit: “Il est tenu des vices cachés, quand même il ne les aurait pas connus, à moins que, dans ce cas, il n’ait stipulé qu’il ne sera obligé à aucune garantie.” The seller remains liable for hidden defects even without knowledge, unless the seller stipulated freedom from warranty. In practice the clause protects a private seller who genuinely knew nothing, and it protects no one who knew. See Legifrance, article 1643 of the Code civil. The buyer’s remedies are a price reduction or the unwinding of the sale with restitution, and the action must be brought quickly. Article 1648 provides: “L’action résultant des vices rédhibitoires doit être intentée par l’acquéreur dans un délai de deux ans à compter de la découverte du vice.” Proceedings for redhibitory defects must be started by the buyer within two years of discovering the defect. The vices rédhibitoires are defects serious enough to undo the sale, and the clock runs from discovery, not from completion, which is why claims surface eighteen months after the move, when the first winter exposes the house. See Legifrance, article 1648 of the Code civil.
The trap for British owners is the extension, the new bathroom or the rewiring done by themselves or by a family company. In a decision of 19 October 2023, no. 22-15.536, the Cour de cassation restated the rule in these terms: “le vendeur professionnel, auquel est assimilé le vendeur qui a réalisé lui-même les travaux à l’origine des vices de la chose vendue, est tenu de les connaître et ne peut se prévaloir d’une clause limitative ou exclusive de garantie des vices cachés”. A professional seller, a category that includes a seller who personally carried out the works behind the defects, is deemed to know them and cannot rely on a clause limiting or excluding warranty for hidden defects. The court added, for a family property company that had done its own extension works through its manager without calling in a professional: “si la SCI avait elle-même réalisé les travaux à l’origine des désordres affectant le bien vendu, peu important les changements survenus quant à l’identité de ses associés et gérants, de sorte qu’elle s’était comportée en constructeur et devait être présumée avoir connaissance du vice”. Where the company had itself done the works behind the damage, whatever the changes in its shareholders and managers, it had acted as a builder and was presumed to know the defect. Read the decision on Cour de cassation, Third Civil Chamber, 19 October 2023, no. 22-15.536. The SCI, the société civile immobilière or family property company many British buyers use to hold a French house, therefore gains no shelter from changing shareholders, and the British owner who spent summers extending the barn with local labour stands in the same position: the exclusion clause in the deed will not save you if the leaks come from your own works. If you renovated, keep the invoices from registered artisans, the planning permissions, the completion certificates and the ten-year insurance certificates, because using professionals breaks the equation between your works and presumed knowledge.
B. Defending a claim from Britain: papers, deadlines and procedure
A claim arrives as a letter from a French lawyer, then as a court summons, an assignation, and distance is no defence. The first deadline is the buyer’s, the two years from discovery in article 1648, but your own deadlines start the day you are served, so instruct a French lawyer immediately rather than answering the allegations yourself in writing, because anything you concede about what you knew can be used to defeat your exclusion clause. The file to assemble is the same one a careful seller keeps from the day of the sale: the preliminary contract and the final deed with all annexed surveys, the surveyor’s engagement letter, invoice and insurance, the planning permissions and artisans’ invoices for every work done during your ownership, the completion and insurance certificates, photographs taken before the sale, and the correspondence with the estate agent about the property’s condition. Where the buyer alleges a hidden defect, the court will almost always appoint an independent expert, the expert judiciaire, who visits the property with both sides present. Attend that visit in person or through your lawyer, because the expert’s report decides most cases, and points not raised before the expert are difficult to revive later. Bring your own technical adviser to the visit where the stakes justify it: a short written note from an independent builder, filed with the expert on the day, often carries more weight than pages of argument submitted months afterwards. If the expert confirms a defect predating the sale that you could not have ignored, negotiate: a price reduction costs less than an unwinding with years of interest and costs, and French courts approve settlements at every stage.
A typical timeline shows why early action matters. Suppose you sell in June 2023, the buyer moves in, and in January 2024 the first serious frost reveals water ingress around the extension you built yourself in 2019. The buyer complains in March 2024, commissions a private report in summer 2024, and serves a summons in early 2025, well within the two years from discovery. The court appoints an expert who visits in autumn 2025 and concludes the leaks come from non-compliant flashing installed during your works. At that point your exclusion clause is worthless under the 2023 decision, and the negotiation is about figures: the cost of repair, the loss of use, and each side’s legal costs. Had your 2019 works been done by a registered roofer with an invoice, a completion certificate and a ten-year guarantee, the same expert would more likely have directed the buyer towards the professional’s insurance, and you would have kept your clause. The difference between those two outcomes is never decided at trial; it is decided years earlier, in the choice between documented professionals and informal labour, and in the honesty of the answers given to the notaire’s pre-sale questionnaire.
Two practical points specific to sellers living in Britain close the picture. First, language and presence. Proceedings run entirely in French, all deadlines are strictly counted in days from service, and a summons served across the Channel follows formal channels that add weeks but change nothing on the merits, so give your lawyer an address for service in France, often the lawyer’s own office, to avoid learning of a hearing too late. Second, prevention at the sale stage remains your best defence, and it is entirely within your control from London or Manchester. Commission the surveys early from a certified local surveyor rather than accepting the cheapest quote, read the energy rating before the buyer does and correct an absurd result while the surveyor can still revisit, disclose in the deed questionnaire every incident you know, from the winter the pipes burst to the neighbour’s right of way you never formalised, and never sign a statement that the property has undergone no works if the extension, the pool house or the new roof says otherwise. The buyers who lose are those who discover the defect; the sellers who lose are those who cannot prove they disclosed it or did not cause it. Distance changes none of this: a seller living in Leeds answers under the same articles, before the same court, and for the same damages as a seller living next door to the property. The two decisions explained above draw the line exactly there: the surveyor answers for a wrong rating to the measure of the lost negotiation, and the seller who built the defect answers for it in full, exclusion clause or not.
Conclusion
Selling a French second home from Britain means selling with a French survey pack, an energy rating that is now fully enforceable, and a buyer who keeps a two-year action from discovery for hidden defects. Article L271-4 makes the file your duty, article 1641 defines the warranty, article 1643 preserves the exclusion clause for the seller who genuinely knew nothing, and article 1648 shuts the buyer’s action two years after discovery. The Cour de cassation has fixed the two boundary lines: a wrong energy rating compensates the lost chance to negotiate, and a seller who did the defective works, personally or through a family company, is presumed to know the defect and cannot hide behind the clause. Sell with fresh surveys from a certified surveyor, all works documented by insured professionals, and a deed that frankly discloses everything you know, and a claim from the buyer becomes a manageable dispute about money rather than a threat to the sale itself.