The Complete Villa
Renovation Guide

Renovating a luxury villa on the French Riviera is one of the most rewarding — and complex — undertakings in high-end property. Done well, it transforms a good property into an exceptional one and delivers outstanding returns. Done poorly, it can consume time, money and energy far beyond any initial projection.

This guide draws on our experience accompanying dozens of clients through renovation projects across Saint-Tropez, Ramatuelle, Gassin and the broader Côte d'Azur. Our goal is to give you a realistic and comprehensive picture of what is involved, so that you can approach your project with clarity and confidence.

Before You Begin: Due Diligence

The most important work in any renovation project happens before a single contractor is engaged. A thorough pre-purchase or pre-renovation assessment should cover:

• Structural survey: Commissioned from an independent architect or structural engineer, not the selling agent's recommended surveyor
• Planning history and constraints: Review of all existing permits, any violations or non-compliances, and the property's classification under the local urban planning rules (PLU)
• Coastal regulation review: Properties within 100 metres of the coastline fall under the Loi Littoral — a French coastal protection law with significant implications for what can and cannot be modified
• Heritage assessment: Properties in or near classified sites or historic zones may face additional restrictions on external works
• Services and infrastructure: Assessment of drainage, electricity supply, pool systems and any other technical infrastructure that may require upgrading

Navigating French Planning Permissions

Understanding the French planning system is essential before beginning any significant renovation on the Riviera. The key permit categories are:

Déclaration Préalable (Prior Declaration)

Required for minor works including small extensions under 40m², changes to external appearance (colour, materials), pool installation under certain conditions, and some structural alterations. Processing time: 1-2 months.

Permis de Construire (Building Permit)

Required for larger extensions, significant structural alterations and new construction. In the Var department (which encompasses Saint-Tropez), expect processing times of 3-6 months for straightforward applications, potentially longer in classified zones or for properties subject to Architectes des Bâtiments de France review.

Assembling Your Team

The quality of your renovation team will determine the quality of your result. On the French Riviera, the most important appointments are:

Architect (Architecte)

For any renovation involving structural work, an architect approved by the Ordre des Architectes is legally required in France for buildings over a certain size. Beyond the legal requirement, a skilled local architect is an invaluable guide through the planning process and a guarantor of design quality. We recommend working with an architect who has a demonstrated track record of luxury villa projects in your specific area.

Maître d'Oeuvre (Project Manager)

For projects of significant scale, a maître d'oeuvre — a construction project manager distinct from the architect — can coordinate all trades, manage the tender process and oversee quality control on site. This role is particularly valuable for clients who are not based locally.

Budgeting for Renovation

Renovation costs on the French Riviera reflect the premium labour, material and logistics environment. As a general guide for luxury-standard work:

• Full interior refurbishment (no structural changes): €1,500–€3,500 per m²
• Full renovation including structural work: €3,000–€6,000+ per m²
• Pool installation (standard): €50,000–€150,000
• Landscaping (premium): €100,000–€500,000+
• Home automation and AV systems: €50,000–€300,000+

Always budget a contingency of at least 15-20% for unforeseen issues — in older properties, this figure should be higher.

Timeline Expectations

A realistic timeline for a substantial luxury villa renovation on the Riviera might look as follows:

1. Due diligence and team assembly: 2-3 months
2. Design development: 3-6 months
3. Planning application and approval: 3-8 months
4. Tender and contractor selection: 2-3 months
5. Construction: 12-24 months depending on scope
6. Fit-out, furnishing and landscaping: 3-6 months

Total: 24-48 months from decision to completion for a major renovation. Planning for this timeline from the outset prevents the disappointment and additional cost that come from unrealistic expectations.