A house is sold in July 2006. In May 2008 the floor of a bedroom balcony collapses. Two court appraisals are ordered in summary proceedings in October 2008, extended in 2010 to the heating and drainage; the report is filed in August 2012, and the buyers sue on the merits at the end of 2012. Too late, says the Court of Appeal: the two-year time limit of the hidden defects warranty is a strict time bar, interrupted by the summary application but running again from the order. On 26 March 2026 the Cour de cassation (the French supreme court for civil matters) quashed that ruling: the period is a limitation period, suspended for as long as the investigative measure lasts, until the report is filed. For the buyers the door to a price reduction claim stays open, and that is where valuation comes in.
The facts
By deed of 20 July 2006 a couple sells a house to another couple. On 3 May 2008 the floor of the balcony of an upstairs bedroom collapses. On 1 October 2008 the summary judge orders two appraisals, one on the causes of the collapse, the other on the losses suffered by the buyer who was injured. On 3 February 2010 the operations are extended to the heating and the drainage system. The property appraisal report is filed on 31 August 2012.
By writs of December 2012 and January 2013 the buyers sue the sellers and the insurers for compensation and for a reduction of the sale price, chiefly under the hidden defects warranty. The Rouen Court of Appeal, on 8 February 2023, rules them inadmissible: the two-year period would be a strict time bar, interrupted by the summary writs only until the orders of 2008 and 2010, so that the action was barred by January 2013.
The decision
The third civil chamber quashed the judgment (Cass. 3e civ., 26 March 2026, no. 24-14.729), under articles 1648, paragraph 1, and 2239 of the Civil Code: “The two-year period provided by the first of these provisions for bringing the warranty action for hidden defects in the thing sold is a limitation period capable of suspension, under the second, where the court grants an application for an investigative measure made before any proceedings.”
The Court of Appeal had found that the appraisals ordered in 2008 and 2010 “had continued until 31 August 2012, the date of the expert’s report”; by holding the action time-barred it breached those provisions. The Court also quashed, for distortion, the rejection of the claims against the buyers’ insurer, which did appear in the operative part of their submissions. Remittal to the Versailles Court of Appeal.
What this changes for valuation
The timetable of the warranty action. The two-year period runs from discovery of the defect. A summary application for an appraisal interrupts it; the appraisal ordered then suspends it until the report is filed, and the period starts running again from that filing, for at least six months. This reading, now settled, protects the buyer who took the precaution of having the defect established by a court expert before suing on the merits. It matches the decision commented on here about insulation: the expert report is the pivot of the time limit.
Two appraisals, two objects. The case distinguishes the technical appraisal, on the causes of the collapse and the condition of the heating and drainage, from the appraisal of the losses. Quantifying the price reduction is neither: the estimatory action provided by article 1644 of the Civil Code lets a buyer who keeps the property recover part of the price, and that part is measured by the loss of value the defect caused at the date of sale. The valuer comes in there, with the technical report in hand.
How the price reduction is quantified. Two approaches check each other. The cost of repair works, as established by the technical expert, adjusted to the date of sale; and the gap between the value of the sound property and its value affected by the defect, at the same date, with comparables. When the works make the property better than it was, part of the cost stays with the buyer; when the defect affects the structure, like a balcony that collapses, the loss of value often exceeds the cost of works, because an informed buyer would have demanded a safety discount. The report explains the choice made.
Ancillary losses. Excess energy consumption from a defective heating system, restoration of a drainage system, loss of enjoyment during the works, personal injury in case of an accident: each has its own quantification, and the last two are not items of the property’s value. The report presents them separately so that the judge does not confuse the price reduction, which corrects the sale, with damages, which repair a fault or knowledge of the defect.
The date of sale as the reference. The price reduction is computed at the date of sale, with the market of 2006 in this case, not at the date of judgment. A retrospective valuation calls for the references of the time, the condition of the property as described in the deed and the surveys, and a clear explanation of the method. That is what lets the court of remittal fix a figure, nineteen years after the sale.
What the valuer takes from it
- The two-year period of the hidden defects warranty is a limitation period: it is suspended during a court appraisal ordered in summary proceedings, until the report is filed.
- The estimatory action requires a quantification of the loss of value at the date of sale, distinct from the technical report.
- Cost of repair and gap in value check each other; the report explains which is retained and why.
- Ancillary losses, enjoyment, energy, injury, are quantified separately and not confused with the price reduction.
- A retrospective valuation is made with the references of the time of sale.
Further reading
The Property loss of value page describes the assignment, its timescale and its fee. The guide I paid too much, can I challenge the price and the glossary entry vice caché complement this article. On the same theme: Hidden insulation defect: the time limit runs from the expert report and Hidden defect repaired by a third party: price reduction. The decision is available on Légifrance.
What next
A defect discovered after purchase, an appraisal under way, and the question of the price?
I quantify the loss of value of the property due to the defect and the cost of repair, at the date of sale, for a claim for a price reduction or damages, alongside the technical report.
Free quote, by email or by phone. No commitment before the quote is accepted. Fees are never linked to the value of the property (Charte de l’expertise, Title I, §2.1).
