Guide
Building Permit on the PACA Coastline
Cécile Dupré, HMONP architect ·
A coastal plot needs analysis before purchase or transformation. Planning documents, coastal law and protections apply together: an address or neighbouring building does not prove a project’s feasibility.
In brief
On the PACA coast, a planning application is governed by specific rules: local PLU, coastal law, protected perimeters, opinion of the Architectes des Bâtiments de France (ABF), landscape integration, height, setbacks and intervisibility. Before filing, a feasibility study scopes the project, identifies constraints and does not guarantee freedom from appeals. Atelier Nérée supports owners on regulatory analysis, site-appropriate design, application preparation and supervision of the review, with attention to both architectural quality and necessary checks and reservations.
The 100-metre strip and buildability
Within the 100-metre coastal strip, construction is generally prohibited outside urbanised areas, subject to statutory exceptions. An urbanised location does not guarantee buildability: the parcel’s PLU/PLUi, easements, risks, protections and coastal rules must still be checked before purchase.
Cross-check the parcel’s rules
The study checks PLU/PLUi, easements, risks, landscape and heritage protections, areas near the shore and other applicable coastal provisions. Boundaries, access, services and the project are considered together. An existing renovation does not automatically authorise an extension or rebuilding.
Identify the correct heritage procedure
ABF consent is required for relevant works in historic-monument surroundings and remarkable heritage sites (SPR). In a registered site (site inscrit), the opinion is advisory, except for demolition. A building classified as a historic monument follows a different procedure from its surroundings; its exact status and procedure must be checked.
Prepare a complete application
Depending on the project: application form, location and site plans, sections, façades, roofs, statement, visual insertion and photographs. Additional studies and consultations are identified with the relevant authorities; the decision belongs to the reviewing authority.
Separate the different schedules
Ordinary review periods are 2 months for a detached-house permit (PCMI) and 3 months for other building permits, starting with a complete application. Protected areas can involve adjusted periods notified by the authority. Review time excludes preliminary studies, appeal periods and construction. The overall schedule allows for studies, discussions, possible additional documents and pre-construction stages. Neither permission nor freedom from appeals is guaranteed.
Summary
Within the 100-metre coastal strip, construction is generally prohibited outside urbanised areas, subject to statutory exceptions. An urbanised location does not guarantee buildability: the parcel’s PLU/PLUi, easements, risks, protections and coastal rules must still be checked before purchase. The study checks PLU/PLUi, easements, risks, landscape and heritage protections, areas near the shore and other applicable coastal provisions. Boundaries, access, services and the project are considered together. An existing renovation does not automatically authorise an extension or rebuilding.
Frequently asked questions
Can you build within the 100-metre coastal strip?
Within the 100-metre coastal strip, construction is generally prohibited outside urbanised areas, subject to statutory exceptions. An urbanised location does not guarantee buildability: the parcel’s PLU/PLUi, easements, risks, protections and coastal rules must still be checked before purchase.
How long is a building-permit review?
Ordinary review periods are 2 months for a detached-house permit (PCMI) and 3 months for other building permits, starting with a complete application. Protected areas can involve adjusted periods notified by the authority. Review time excludes preliminary studies, appeal periods and construction.
Is the ABF opinion always binding?
ABF consent is required for relevant works in historic-monument surroundings and remarkable heritage sites (SPR). In a registered site (site inscrit), the opinion is advisory, except for demolition. A building classified as a historic monument follows a different procedure from its surroundings; its exact status and procedure must be checked.
What should be checked before an offer or purchase agreement?
Architectural feasibility and parcel rules alongside acquisition-related surveys and legal checks. Clarify the study’s reservations and any conditions with the notary.
Can an existing villa be extended?
An existing building does not guarantee an extension. Planning documents, easements, protections, risks and coastal rules must still be checked for the proposed works.
Official sources
- Service Public — Permis de construire
- Ministère de la Culture — Travaux en site protégé
- Légifrance — Code de l’urbanisme, L121-16
This guidance does not replace analysis of the rules and procedures applying to your parcel.
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