Extending a villa in the Alpes-Maritimes is one of the best ways to increase living space, improve comfort, and add long-term value. But the region’s strict planning regulations, sloped terrains, and Mediterranean climate create unique challenges that must be addressed with expertise.
At Baie des Anges, we guide homeowners through every stage of the extension process, ensuring the new space blends seamlessly with the existing architecture and lifestyle. Here’s our expert advice on planning a smooth, beautiful, and compliant villa extension on the Côte d’Azur.
1. Start with a Clear Vision of Your Needs
The first step in planning a villa extension is understanding why you need additional space.
Common extension goals:
- larger living or dining areas
- new bedrooms or guest suites
- expanded kitchens
- home offices or studio spaces
- fitness or wellness rooms
- improved indoor–outdoor living
A clear vision ensures a focused design and budget.
2. Understand Local Planning Regulations Early
The Alpes-Maritimes region has strict zoning and urban planning rules, especially in coastal or hillside areas.
Regulations may influence:
- building height
- roof style
- façade materials
- windows and openings
- terrace or balcony sizes
- distance from property boundaries
- impact on neighbours
- heritage or conservation restrictions
Baie des Anges manages all pre-studies, local consultations, and architectural compliance to avoid costly surprises.
3. Conduct a Full Technical Assessment
Before designing the extension, a technical diagnosis of the existing villa is essential.
We evaluate:
- structural stability
- load-bearing walls
- foundations
- waterproofing
- electrical and plumbing infrastructure
- roof quality
- humidity and insulation performance
This assessment determines what is feasible and safe to build.
4. Prioritise Seamless Architectural Integration
A successful extension looks like it was always part of the original home.
Our design principles include:
- matching roof lines and slopes
- respecting Mediterranean proportions
- aligning window sizes and shapes
- using complementary stone, render, or plaster
- balancing old and new materials
- creating harmonious transitions inside and out
Extensions should enhance rather than overpower the existing architecture.
5. Embrace Modern Mediterranean Design
While architectural harmony is key, an extension is also an opportunity to modernise.
We integrate:
- large sliding glass doors
- open-plan layouts
- microcement or natural stone floors
- warm wood accents
- enhanced natural light
- minimalistic Mediterranean aesthetics
This blends authenticity with contemporary luxury.
6. Plan for Indoor–Outdoor Lifestyle Expansion
Outdoor living is essential on the Côte d’Azur, so villa extensions often include complementary exterior upgrades.
These may involve:
- extending terraces
- adding pergolas or bioclimatic structures
- connecting new rooms to gardens or pools
- improving landscaping
- expanding shaded dining zones
This ensures the extension contributes to both indoor and outdoor enjoyment.
7. Choose High-Performance Materials Made for the Riviera
The coastal climate demands durable, weather-resistant materials.
Baie des Anges favours:
- corrosion-resistant metals
- high-quality aluminium frames
- insulated glazing
- marine-grade exterior finishes
- natural stone that handles sun and humidity
- energy-efficient insulation and roofing
Material selection determines longevity and comfort.
8. Set a Realistic Budget—and Include a Contingency
Extensions often involve structural work, which can uncover hidden issues.
To avoid stress:
- define priorities early
- request detailed, itemised quotes
- allow a 10–15% contingency
- finalise materials and design before starting
Transparency prevents unexpected costs.
9. Prepare for Temporary Disruptions
Even with excellent planning, extensions require:
- structural openings
- scaffolding
- electrical interruptions
- temporary access restrictions
- noise and dust control
Baie des Anges organises staging areas, protection systems, and client updates to ensure minimal inconvenience.
10. Rely on Coordinated, Professional Project Management
A villa extension involves architects, engineers, masons, electricians, plumbers, carpenters, and finishing specialists.
Baie des Anges ensures:
- a single point of contact
- harmonised scheduling
- strict quality control
- fast decision-making
- daily site supervision
- on-time delivery
Professional coordination is the key to a smooth project.
Extend Your Villa with Confidence—Choose Baie des Anges
A well-planned extension adds beauty, functionality, and long-term value to your home. With the right partner, the process becomes effortless and inspiring.
Choosing Baie des Anges means:
✔ expert planning and design
✔ deep knowledge of local regulations
✔ high-quality Mediterranean materials
✔ seamless architectural integration
✔ turnkey project management
✔ elegant indoor–outdoor solutions
✔ reliable, transparent communication
We turn your vision into a refined, modern Mediterranean living experience.

