Latent Defect: Even a Professional Buyer Can Obtain a Price Reduction

Imagine: you have just bought a flat in Le Cannet, with a sea view. Everything seems perfect. But after three months, cracks appear in the load-bearing wall. The expert reveals an old construction defect, hidden under a recent render. The seller tells you: "You are a property professional, you should have seen it!" What can you do? This question was asked by a ship buyer to the Court of Cassation in 1970. The answer is still valid: even a professional can rely on a latent defect if the most careful inspection could not have revealed it.

In this article, I will explain this landmark decision, its reasoning, and above all what it means for you, whether you are an owner, tenant or property professional in the jurisdiction of Grasse, Nice or Le Cannet.

But first, what is a latent defect? It is a defect which renders the property unfit for its intended use or so diminishes its use that the buyer would not have bought it, or would have paid a lower price, had they known of it (Article 1641 of the Civil Code). The defect must be hidden, i.e., not apparent at the time of purchase, and must pre-exist the sale. The decision we analyse sets out the criteria for a professional buyer to still be able to rely on such a defect.

The Facts: A Story That Happens Every Day

In 1965, the company Germanischer Lloyd bought a ship, the Emergo, from a professional seller. Before the purchase, it instructed its chief engineer to inspect the ship. The engineer visited, examined the machinery, but detected no defect. After delivery, defects appeared in the machinery, requiring disassembly to be discovered. The company sued the seller for a price reduction due to latent defects.

The seller defended itself: "The buyer is a professional, it should have seen the defects!" The Court of Appeal ruled in favour of the buyer, granting a price reduction. The seller appealed to the Court of Cassation, arguing that general and apparent wear and tear of a ship is not a latent defect, and that defects detectable by a careful examination cannot be latent vis-à-vis a professional buyer.

The Court of Cassation dismissed the appeal: the lower courts had sovereignly held that the defects were latent because they could only be discovered after disassembly, and that the buyer, despite inspection by an experienced engineer, could not have detected them. In other words, the professional status of the buyer does not automatically deprive them of the guarantee against latent defects if the most diligent inspection could not have revealed the defect.

The Reasoning of the Court — Analysed

The legal basis is Article 1641 of the Civil Code: "The seller is bound to guarantee against hidden defects in the thing sold which render it unfit for the use for which it is intended, or which so diminish that use that the buyer would not have acquired it, or would have given only a lower price for it, had they known of them."

The difficulty here is that the buyer is a professional (a ship classification society). Previous case law was uncertain: some courts considered that a professional, deemed to know their field, could only rely on a latent defect if it was undetectable even by an expert. Others considered that the professional should have seen everything.

The Court of Cassation ruled: it reiterated the sovereign power of the lower courts to assess the existence of a latent defect. In this case, the judges noted that the defects were only apparent after disassembly, and that the buyer had carried out a serious inspection by an engineer. Therefore, even for a professional, if the defect is objectively hidden (not detectable by a normal or even thorough examination), the guarantee applies.

In short, it is not the status of the buyer (professional or not) that determines whether a defect is latent, but the nature of the defect itself. If a defect can only be discovered by dismantling the object, it is latent, regardless of the buyer. However, note: if the professional buyer had not carried out a minimal inspection, they might be considered negligent and lose their right. But here, they had been diligent.

What This Means for You — In Practice

For a landlord owner in Nice: you rent out a flat. The tenant discovers a water leak from a pipe hidden in the wall. You thought it was an apparent defect? If the tenant proves that you could not have known about it (no trace before the tenancy), they can demand a rent reduction or termination of the lease. But if you are a professional (estate agency), you must have inspected the premises. If you did not, you are at fault.

For a buyer of a property in Le Cannet: you buy an old house. After the sale, you discover termites in the roof timbers, hidden behind panelling. The seller argues that you are a "renovation professional". Bad faith: if the preliminary inspection (by an expert) did not reveal the termites, you can bring a claim for latent defects. Time limit: 2 years from the discovery of the defect (Article 1648 of the Civil Code). Amount: you can obtain the cost of repairs (often several thousand euros) or a price reduction.

For a co-owner in Grasse: cracks appear in the common parts. The management company refuses to take responsibility, arguing that they were visible before your purchase. If the cracks were masked by recent paint, you can rely on the latent defect against the seller of your unit. But note: the guarantee against latent defects only applies between seller and buyer, not against the management company.

If you are in this situation, you should: 1) Have the defect noted by a court-appointed or independent expert. 2) Send a recorded delivery letter to the seller informing them. 3) Take legal action within 2 years of discovery. 4) Keep all repair invoices.

Four Tips to Avoid This Type of Dispute

• Have the property inspected by an independent professional before purchase. Whether you are a private individual or a professional, a technical inspection (property survey, architect visit) can reveal hidden defects. Expect to pay €300 to €800 for a house, a small investment compared to a dispute.
• Require contractual guarantees. In the sale deed, include a clause extending the guarantee against latent defects beyond the legal minimum. For example, a guarantee of 5 years instead of 2.
• Keep all documents from the visit. Photos, expert reports, emails exchanged with the seller. In the event of a dispute, these documents show that you were diligent.
• If you are a seller, be transparent. Disclose all known defects in writing. If you conceal a defect, you risk being ordered to pay damages in addition to the price reduction.

Besoin d'un conseil personnalisé ? Contactez Maître Zakine — première consultation 30 min à 45€.

Further Analysis: Related Case Law and Developments

This 1970 decision has been confirmed subsequently. For example, in a judgment of 15 January 1985 (No. 83-14.789), the Court of Cassation held that a professional seller is deemed to know the defects of the thing, but that a professional buyer is not thereby deprived of the guarantee if the defect was undetectable. On the other hand, a judgment of 3 November 2004 (No. 03-12.389) specified that if the professional buyer had the skills to detect the defect, he cannot rely on the guarantee. What matters is the practical possibility of discovering the defect at the time of purchase.

The trend of the courts is to protect the good faith buyer, even a professional, while also holding them responsible: they must carry out normal checks. In the jurisdiction of Grasse, the judges are particularly attentive to preliminary expert reports. Thus, in Nice, a property developer who had not carried out a soil test before buying land was denied his claim for latent defect (TGI Nice, 12 March 2018).

For the future, the case law remains stable. What few people know: the guarantee against latent defects can also apply to leases (defects affecting the tenant's enjoyment) and to auction sales.

Summary and Next Steps

FAQ

1. What is a latent defect for a professional buyer?
A defect that even a serious inspection by an expert could not have detected before the purchase. The professional status alone does not exclude the guarantee.

2. Can I obtain a price reduction if I bought a property with a latent defect?
Yes, you can seek a price reduction (actio quanti minoris) or rescission of the sale (actio redhibitoria). The choice is yours, subject to the court's assessment.

3. What are the time limits for taking action?
You have 2 years from the discovery of the defect to bring legal proceedings (Article 1648 of the Civil Code). After this period, you are time-barred.

4. What if the seller refuses to acknowledge the defect?
Have the defect noted by a bailiff or court-appointed expert. Send a formal notice to the seller. If they persist, apply to the judicial court. A consultation with a lawyer lawyer is strongly recommended.

5. Is a latent defect covered by insurance?
Builders' liability insurance may cover construction defects. For other defects, check your legal protection insurance policy. Some policies cover legal fees.

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