Prevention

Legal obligation

Brush-clearing (OLD): the requirement that saves homes

It is the most effective preventive measure there is — and a legal obligation In at-risk areas: clear the undergrowth within 50 metres of your home. The evidence is clear: the vast majority of homes that were destroyed had not been cleared of undergrowth, or had been cleared inadequately. Find out everything you need to know in four guides and one tool.

2-minute read Content verified — July 2026

Key points

  • In areas at risk, clearing undergrowth is compulsory in areas situated within 200 metres of woodland and forests (Forest Code).
  • The basic rule : 50 metres around buildings (extendable to 100 metres), plus a strip along the access routes.
  • It is the occupant of the property who is responsible for clearing the undergrowth — even if it extends onto the neighbour’s land.
  • Stricter penalties since 2023: an administrative fine of up to €50 per square metre, and an increased insurance excess of up to €5,000.
  • Since 1 January 2025, sellers and landlords have been required to inform buyers and tenants of this obligation.

Why this is THE measure that matters

The aim of brush-clearing is not to ‘ mow down ’ the vegetation, but to to break the fuel continuity : when the fire reaches an area where the undergrowth has been cleared, it loses its intensity, spreads along the ground, and the house — no longer threatened by the flammable hedge or direct heat — becomes defendable. In practical terms :

≈ 9/10
Some of the houses destroyed in the major fires had not been (or had been poorly) cleared of undergrowth — a recurring observation by the emergency services
50 m
the regulatory framework surrounding buildings — where the crucial issues are at stake
lower fire intensity measured on arrival at a properly treated area
50 €/m²
the maximum administrative fine for failure to comply following a formal notice

And here’s a little-known fact: a cleared plot also protects the fire brigade who would come to defend your home and your downwind neighbours. It is as much an act of solidarity as it is one of self-interest.

The OLD guides

The three fact sheets that will get your project back on track

What has changed recently

July 2023

Act No. 2023-580 strengthens the entire framework: the administrative fine has been increased to 50 €/m², penalty payments, better coordination with town planning documents, and mandatory disclosure requirements for sales and lettings.

2024

Implementing decrees: procedures for providing information to buyers and tenants, details of the areas concerned and the content of the risk assessment.

1 January 2025

The disclosure requirement comes into force: the property listings must specify the OLD and the risk status associated with it in the relevant fields.

Today

Inspections are becoming more frequent after every harsh season — and insurers are applying the higher excess. The ‘out of sight, out of mind’ approach is on its last legs: it’s best to be in compliance by spring.

The risk changes every day. So do your reflexes.

Check the fire alert status for your department, keep track of current fires and report a fire via the Feux de Forêt mobile app.