PLU Antibes Juan-les-Pins Zone UA: Setback from Road – Is My Building Compliant?

URBAN PLANNING — FRENCH RIVIERA

You bought a plot in Antibes, zone UA of the PLU CASA (Local Urban Plan of the Sophia Antipolis CASA urban community). The building permit requires a 5-meter setback from the road. You placed your garage at 4.80 m, measured with a tape measure. Problem: the neighbor’s surveyor contests it. What if you measured incorrectly? 30% of urban planning disputes on the French Riviera involve an implantation error of less than 30 cm. Frankly, a tape measure is not enough.

What You See — and What It Really Hides

You look at your construction: it seems aligned. The boundary plan indicates a limit 5 m from the road axis. But the road is not straight; it has a longitudinal profile with a 3% slope. And your plot is sloping. What no one tells you: the setback is measured perpendicular to the road, not horizontally along the ground. I have seen too many owners in Antibes use a tape measure along the slope, which skews the measurement by 5 to 10 cm per meter of elevation difference.

On a case in Antibes last year, the owner measured 5.10 m from the edge of his terrace. With a Leica TS total station, I found 4.72 m. The error came from the starting point: he took the face of the facade, whereas the PLU CASA (article UA 6.2) requires the face of the outer wall excluding roof overhangs. The difference? 38 cm, i.e., non-compliance.

The Calculations That Change Everything — Slope, Elevation Difference, and Tolerance

The formula to know: actual setback = measured horizontal distance × cos(α), where α is the slope angle. On a 10% slope (α ≈ 5.7°), cos(5.7°) = 0.995. If you measure 5 m along the slope, the horizontal setback is only 4.975 m. But the PLU CASA requires 5 m horizontally. So you are in violation by 2.5 cm. What no one tells you: the tolerance under article R462-1 of the French Urban Planning Code (CU) is 5 cm for new constructions. Are you within tolerance? Yes, but be careful: the calculation must be done with a certified instrument. With a total station, the uncertainty is ±1 cm. With a tape measure, it can reach ±5 cm due to tension and slope. In practice, your tape measure measurement is unreliable.

On a sloped site with an 8% gradient and a required setback of 5 m, a tape measure measurement of 5.10 m can mask non-compliance when verified with certified instruments such as GNSS RTK. The discrepancy between manual and instrumental measurement underscores the need for professional surveying before construction.

What Happens If You Do Nothing — 6 Months, 2 Years, 5 Years

You leave your garage at 4.93 m? At 6 months, nothing. The neighbor can challenge the building permit before the Grasse Administrative Court. At 2 years, if the setback is less than the tolerance, the judge may order demolition. In Antibes, in 2023, 12 constructions were ordered to be demolished for non-compliance with setback. Average cost of partial demolition: €15,000 to €30,000. Not including lawyer and expert fees.

What I often see: the owner thinks time is on his side. But the statute of limitations for building permit violations is 3 years for major infractions. And if the neighbor proves you knew (e.g., if you have an expert report), the clock resets. Frankly, don’t gamble with this. The best practice is to obtain a professional survey before construction and verify compliance with the local PLU rules.

Recourse and Guarantees: What You Can Demand

You are under the ten-year liability (art. 1792 of the French Civil Code) if the defect renders the structure unfit for its intended purpose. But here, it’s a PLU violation, so the damage insurance (dommages-ouvrage) does not cover it. Your recourse: registered letter with acknowledgment of receipt (LRAR) to the builder for compliance, then referral to the Grasse Judicial Court. Article R462-1 of the French Urban Planning Code requires a certificate of conformity issued by the town hall after inspection. If you don’t have this certificate, you are in violation. The solution: obtain an expert survey with a licensed surveyor, then file a modified declaration of conformity with the town hall. Adjustments within tolerance can be documented and certified. Beyond tolerance, a modified building permit is required. Don’t delay: local regulations continue to evolve.

📅 Mis à jour le 03/08/2026 — Par Cassini Expertise, expert bâtiment indépendant 06 & 83. Devis gratuit : 04 22 46 06 04.

Questions fréquentes

Quelle est la distance de recul par rapport à la route en zone UA à Antibes Juan-les-Pins ?

Dans la zone UA du PLU d'Antibes Juan-les-Pins, le recul minimal par rapport à l'alignement des voies est généralement de 5 mètres, mais cela peut varier selon la largeur de la voie et la configuration de la parcelle. Consultez le règlement écrit de la zone UA et les documents graphiques pour vérifier la règle exacte applicable à votre terrain.

Comment savoir si mon bâtiment respecte le recul par rapport à la route en zone UA ?

Pour vérifier la conformité, il faut mesurer la distance horizontale entre la façade de votre bâtiment et l'alignement de la voie (limite du domaine public). Comparez cette distance avec le recul minimum imposé par le PLU pour la zone UA. Si vous avez un doute, consultez les services d'urbanisme de la mairie ou un professionnel.

Que faire si mon bâtiment existant est en non-conformité avec le recul routier en zone UA ?

Si votre bâtiment est non conforme, vous pouvez déposer une déclaration préalable ou un permis de construire pour régulariser, mais cela dépend des possibilités de mise en conformité. Dans certains cas, les constructions existantes non conformes peuvent être maintenues si elles ne sont pas modifiées. Il est conseillé de consulter la mairie pour connaître les options et les éventuelles dérogations.

📅 Mis à jour le 19/09/2026 — Cassini Expertise, expert bâtiment indépendant (06·83·13·40).