EXPERT ASSESSMENT \u2014 VEFA FRENCH RIVIERA
You’ve just moved into your new apartment in Cannes, in the Collines district. The developer sold you an unobstructed sea view. But when you open the living-room window, you’re staring straight at a bare 3-metre-high earth slope. The VEFA plans showed a gently sloping garden. The reality: a wall of earth blocking everything. The vast majority of buyers in hillside zones discover a view defect after handover. You are not alone. And more importantly, you have rights.
What you see \u2014 and what it’s really hiding

The developer tells you: « It’s temporary, the planting will grow in. » But you’ve read the site plan: the natural ground level was set at +45.00 NGF (French national reference datum). Your finished floor level is at +44.20 NGF \u2014 an 80 cm cut was planned. Yet the current slope peaks at +47.50 NGF. The developer raised the ground level to avoid hauling away the excavated earth. Result: you’ve lost 3.30 m of view.
What I often find in these cases: the developer argues the view was never contractual. But the VEFA plan referred to a « panoramic view » and the cross-section drawing showed a maximum slope height of 1.20 m. At 3.30 m, the gap is glaring. Frankly, this is a classic move in Cannes: developers exploit the tolerance margins on altimetric levels.
The calculations that change everything: slope gradient and earth volume
The gradient of the built slope: \u0394h = 47.50 \u2212 44.20 = 3.30 m. Horizontal distance measured on the plan: 8 m. Gradient = (3.30/8) \u00d7 100 = 41.25%. That’s a 22.5\u00b0 angle. Standard NF ISO 5455 (scales) allows a tolerance of \u00b1 2% on altimetric levels. Here, the discrepancy is 3.30 m against a planned level of +45.00 NGF, a 7.3% deviation. Non-compliant.
Additional earth volume: the slope area is estimated at 120 m\u00b2, with an average thickness of 2.50 m \u2014 300 m\u00b3 of earth that was never planned for. That’s roughly 30 extra truckloads, and a removal cost of \u20ac15,000 to \u20ac20,000 that the developer tried to save. It’s not uncommon to find a 4-metre slope that required a complete earthworks overhaul following an expert assessment.
The consequences of doing nothing
Doing nothing means accepting a drop in the value of your property. A blocked view can knock 10 to 15% off the resale price in the Cannes market. What’s more, rising damp from the slope can damage walls and foundations over time \u2014 not to mention the aesthetic prejudice and daily inconvenience. The statute of limitations for a hidden defect claim is 2 years from the date the defect is discovered. Miss that window and you lose all your rights.
Possible remedies with a VEFA expert
Calling in a building and topography expert such as Cassini Expertise allows you to:
- Survey the altimetric levels against the NGF datum and draw up a contradictory site report.
- Compare the VEFA plans against reality and quantify the discrepancies (height, volume, gradient).
- Draft a solid expert report for legal action or negotiation with the developer.
- Propose technical solutions: reworking the slope, drainage, planting, or compensation.
In most cases, a simple formal notice backed by an expert report is enough to unblock the situation. Developers would rather settle than go to court. Don’t wait for the planting to « grow in »: it will never make up for a 3.30 m difference in ground level.
Have doubts about your VEFA purchase in Cannes, Antibes, Nice or elsewhere on the French Riviera? Contact Cassini Expertise for a review of your case. We work quickly across the C\u00f4te d’Azur.
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\ud83d\udcc5 Updated on 20/08/2026 \u2014 By Cassini Expertise, independent building expert covering 06 & 83. Free quote: 04 22 46 06 04.
Frequently asked questions
What should I do if my VEFA slope is non-compliant?
If the slope delivered does not comply with the building permit or the sale plan, you can refuse delivery and demand that it be brought into compliance. If the seller refuses, apply to the summary proceedings judge (juge des r\u00e9f\u00e9r\u00e9s) for protective measures or a daily penalty (astreinte).
What recourse do I have for a view blocked by a slope in a hillside zone?
You can bring a claim under the hidden defects warranty if the view was a decisive factor in your purchase, or a contractual liability claim for failure to deliver the promised features. Consult a lawyer to assess the applicable deadlines and required evidence.
What are the regulations on excessive VEFA slope height on sloped land?
In hillside zones, slopes must comply with local planning rules (height, gradient, stability). If the slope exceeds the authorised limits, you can challenge the building permit or request remedial works from the town hall.
Cassini Expertise
Expert du bâtiment indépendant — Antibes (06·83·13·40)
📅 Mis à jour le 25/09/2026 — Cassini Expertise, expert bâtiment indépendant (06·83·13·40).