Planning permission for home energy work in France

Getting planning permission or local approval for home energy installations in France is less complicated than many people expect, but the requirements vary by installation type, property type, and location. The key categories are: nothing required, a simple prior declaration (declaration prealable), full planning permission (permis de construire), and separate approvals needed from your building management (for apartments) or from the national heritage authority (for properties in protected zones).

Your installer should handle the paperwork as part of the job. This page explains what to expect and the questions worth asking before you sign anything.

Signing a permit application or contractor agreement in France — Signing a permit application or contractor agreement before work begins in France.

Heat pumps (air-source split systems)

For an air-source split or multi-split system, the standard requirement is a declaration prealable de travaux submitted to your local mairie. This is a notification rather than a full permission: if the mairie doesn't respond within one month (two months for properties in protected zones), the declaration is considered accepted. The process is handled by your installer.

The declaration covers the outdoor unit and any visible modifications to the exterior of the building. No declaration is required for purely internal modifications.

For ground-source heat pump installations involving borehole drilling or ground collectors, the requirements are more significant. Drilling requires a declaration to the DREAL (regional environmental authority) and in some cases a permit from the mairie. Ground-source work should always be handled by an installer experienced in the French administrative process for this type of installation.

Solar panels

For roof-mounted solar panels on a detached house, a declaration prealable is required. The threshold at which a full permis de construire becomes necessary is high: it applies when the total installation area exceeds certain limits, which standard residential solar systems don't typically reach. Your installer will submit the declaration as part of the project.

The declaration needs to include the location and dimensions of the panels, their colour and finish, and photos of the existing roof. Approval is straightforward for standard installations on non-listed properties.

Installations on flat roofs, on terraces, or integrated into the building envelope may have different requirements. Ask your installer to confirm the specific process for your property type before starting.

Air conditioning units

For a standard residential AC split system, a declaration prealable is required for the outdoor unit, which constitutes an exterior modification. The process is the same as for heat pumps.

Smaller portable or window units that don't require an outdoor unit generally don't require planning approval. They are far less efficient than split systems and not common for permanent installations on the Riviera.

EV chargers

For a standard residential wallbox charger installed in a private garage or on private land, no planning permission is required in France. The installation requires a qualified IRVE-certified electrician, and the work must be notified to Enedis (the grid operator) if it involves a dedicated circuit over a certain capacity, but this is handled by the installer.

For chargers in shared or communal parking areas (coproprietes), the process is different and covered in the section below.

Properties in protected zones (ABF)

If your property is within the perimeter of a listed monument, in a secteur sauvegarde (historic conservation area), or in a site classe or inscrit, an additional approval from the Architecte des Batiments de France (ABF) is required before any exterior modification. This includes outdoor AC units, solar panels on visible roof surfaces, and heat pump outdoor units.

The Alpes-Maritimes has several of these zones, particularly in the historic centres of Nice, Antibes, and Vence, and in areas surrounding significant chateaux and chapels. If you are unsure whether your property is in a protected zone, your mairie can confirm this, or you can check the Geoportail urbanisme map online.

ABF approval adds time to the process (typically two months instead of one) and may impose conditions on the equipment's appearance, position, or finish. It is not a barrier to installation in most cases. An experienced local installer will know the typical ABF requirements in your area.

Apartments and coproprietes

For properties in apartment buildings with shared ownership (coproprietes), the building management rules (reglement de copropriete) may require approval from the syndic and in some cases a vote at the annual general assembly before any modification to the exterior of the building.

This applies to outdoor AC or heat pump units visible on the facade, balcony, or roof. Solar panel installations on a communally owned roof require a decision by the co-owners at the AGM.

For EV chargers, the "droit a la prise" law gives co-owners and tenants the right to install a charger in their assigned parking space, subject to certain technical conditions. The building cannot simply refuse. You are required to submit a request and wait for a response: if the syndic doesn't respond within three months, the request is considered approved.

Internal modifications (replacing a boiler, installing a water heater, internal electrical work) generally don't require copropriete approval. Check your reglement de copropriete if you are uncertain.

Who handles the paperwork

For a standard installation (heat pump split system, solar panels on a detached house, EV charger), the contractor handles the declaration prealable as part of the job. Ask them to confirm this before signing the devis, and ask for a copy of the submitted declaration for your records.

For properties in protected zones, copropriete situations, or any non-standard installation, discuss the process in detail with your contractor before starting. The timeline for protected zone approvals needs to be factored into your project plan.

Subsidy applications (MaPrimeRenov', CEE) are entirely separate from planning. They must be submitted before work begins, independent of any planning declaration. An installer experienced in working with English-speaking clients on the Riviera will raise both at the initial consultation.

What permits and approvals do you need for home energy work in France?