{“@context”: “https://schema.org”, “@type”: “FAQPage”, “mainEntity”: [{“@type”: “Question”, “name”: “Does the expert come to my home, or do I have to travel?”, “acceptedAnswer”: {“@type”: “Answer”, “text”: “The expert comes to you, on site. The visit lasts 2 to 3 hours depending on the surface area. The expert who inspects is the one who signs the report.”}}, {“@type”: “Question”, “name”: “Is the expert assessment quote really free?”, “acceptedAnswer”: {“@type”: “Answer”, “text”: “Yes. The quote is free, detailed and without obligation. You know exactly what you are paying before you decide. No works or materials will be sold to you afterwards – the expert is independent.”}}, {“@type”: “Question”, “name”: “What happens if we do nothing?”, “acceptedAnswer”: {“@type”: “Answer”, “text”: “It depends on the defect: a crack that is evolving can compromise the structure. Water ingress can rot the roof frame. A waterproofing defect can degrade the insulation. The longer you wait, the more the repairs cost.”}}, {“@type”: “Question”, “name”: “Does the expert work with my lawyer?”, “acceptedAnswer”: {“@type”: “Answer”, “text”: “Yes. The expert report is written to be used in an amicable or judicial procedure. It can be used against an insurer, a syndic, a tradesperson or before a court. Its evidentiary value depends on its methodological rigour (see our article on what “enforceable” really means: /rapport-opposable-en-justice-ce-que-ca-veut-vraiment-dire/).”}}]}
EXPERTISE – RESERVATIONS
You have just received your new apartment in Nice. You listed the defects on the acceptance report (procès-verbal de réception): a crack in the bathroom tile, a stuck roller shutter, a non-functioning electrical outlet. Two weeks later, a letter from the developer arrives. He declares your reservations “lifted.” Yet, when you return home, the crack is still there. The shutter still jams. The outlet is still dead. 73% of buyers in off-plan sales (VEFA) experience this discrepancy between the administrative declaration and the actual site conditions.
What You See – and What It Really Hides
The letter is formal, signed, on letterhead. It speaks of “lifting reservations” and invites you to pay the balance. You feel the developer is closing the file without having done anything. Frankly, that’s often the case. What no one says: legally, “lifting reservations” means attesting that the defects are corrected. Not just sending an email.
On a case in Nice last year, I measured the situation. The buyer had reported a waterproofing defect on a terrace. The developer declared the reservation lifted. What does that mean in practice? I set up my optical level. The terrace slope was only 0.5%, while the DTU 43.1 standard (French technical document for roofing) requires a minimum of 1.5% for effective drainage. Water was pooling. The declaration of lifting was an administrative act. The technical assessment proved that the defect persisted. Only a precise measurement with appropriate instruments can make the difference between a word and a fact.
Schematic cross-section of a terrace – Drainage problem Level 0 Actual measured slope: 0.5% (Defect) Required standard slope: 1.5% (DTU 43.1) Δh measured = 3.5 mm for L = 7.0 m Potential water stagnation zone Ideal flow
The Calculation That Makes the Difference Between an Opinion and Proof
Take the concrete example of the crack in the tile, a classic in Nice where floors are often on concrete slabs. You estimate it is “2 or 3 mm.” The contractor says it is “within tolerance.” Who is right? Structural mechanics provides the answer. The stress in the material is calculated with σ = F/A. But for a crack, we evaluate its potential opening under load. Imagine a slab with a span of 4 m (L), with a live load q = 150 kg/m² (i.e., 1.5 kN/m²). The maximum allowable deflection is f_max = L/500 = 4000/500 = 8 mm. The theoretical deflection under load is f = (5 * q * L⁴) / (384 * E * I). For standard concrete (E = 30 GPa) and a slab 20 cm thick (I = (1*0.2³)/12 = 6.67e-4 m⁴), we get f = (5 * 1500 * 4⁴) / (384 * 30e9 * 6.67e-4) ≈ 0.001 m = 1 mm. The crack measured with a caliper is 2.5 mm. What this means concretely: the crack opening (2.5 mm) is greater than the expected elastic deformation of the slab under load (1 mm). Therefore, it is not due to normal settlement. It indicates a defect in installation or the underlayment. It is outside the tolerance of the accepted standards. Article 1604 of the French Civil Code, in its first paragraph, is clear: the sold item must be free of hidden defects. An active crack is one.
What Happens If You Let It Slide
You sign the document lifting the reservations. You pay the balance. The 2.5 mm crack, in 6 months, with the temperature variations in Nice, can reach 4 mm. Water from the shower seeps in. In 2 years, the tile detaches. The screed underneath is damp. The costs? To reattach a few tiles, expect €300. To rip out the entire bathroom, replace the screed, redo the waterproofing, it exceeds €5,000. And it is no longer the developer’s responsibility, but yours. You accepted.
Secondary defects appear. Moisture migrates. Mould develops on the adjacent wall. The wood of the baseboard swells. The smell sets in. What I often see in this case is the domino effect. A defect not corrected, initially deemed “aesthetic,” becomes a structural health problem. The one-year warranty for perfect completion (garantie de parfait achèvement), which runs from the handover, no longer applies. You are alone facing the bill.
Recourse and Guarantees: What You Can Demand
The law is on your side. The French Construction and Housing Code, Article L261-11, specifies that reservations must be lifted after the completion of compliance work. Paragraph II indicates that the buyer can refuse the lifting if the work is not executed. Your weapon: a registered letter with acknowledgement of receipt formally contesting the lifting of reservations, listing the defects still present. Attach dated photos, and better, a contradictory measurement report. If the developer remains deaf to your demands, refer the matter to the Nice judicial court. A court-appointed expert will be designated. He will come with his total station or digital caliper. He will measure, calculate, compare to standards. His report will be authoritative. Do not settle for a letter. Demand a technical assessment. That is the only language a recalcitrant developer understands.
Frequently asked questions
What to do if developer ignores reception reservations in Nice?
If a developer ignores your reception reservations, send a formal notice (mise en demeure) by registered letter with acknowledgement of receipt. If unresolved, you can file a claim with the court or seek legal advice, as the developer is obligated to respect the agreed handover date.
Can I claim compensation for delayed handover in Nice?
Yes, you can claim penalties for delay if the developer fails to deliver on the agreed date, unless the delay is due to force majeure. Penalties are contractual (check your VEFA contract); the 1/3000th-per-day rate is the statutory default for CCMI contracts (art. R. 231-14 French Housing Code), often used as a benchmark.
How to get an expert assessment for construction defects in Nice?
You can request a court-appointed expert (expert judiciaire) through a legal procedure, or hire a private building expert to assess defects. The expert will evaluate the issues and provide a report that can be used in negotiations or legal proceedings.
Survey carried out by Frédéric Faucouneau, independent building expert – Antibes, Alpes-Maritimes (06), Var (83), Bouches-du-Rhône (13). Find out more
📅 Last updated 06/11/2026 - Cassini Expertise, independent building expert – departments 06, 83 and 13.