The dividing line
It does not follow the logic one would expect. It is not the "technical" matters that are regional and the "legal" ones that stay federal.
| Level | Main building-related fields |
|---|---|
| Federal | fire safety, welfare at work, construction products, standardisation, law of obligations and liability, public procurement |
| Regional | planning and spatial development, energy performance, housing, heritage, environment |
| Municipal | police regulations, local planning regulations, taxes, fire service opinions |
The real criterion is subject matter, not technical character. Fire safety remained federal because it concerns the safety of persons, whereas energy performance is regional because it belongs to energy policy.
What this architecture produces
Three concrete effects on a project.
One building simultaneously obeys three bodies of rules. The permit is regional, fire safety federal, the fire service opinion municipal. None of those levels knows the content of the other two.
The timetables are independent. A federal amendment and a regional reform have no reason to coincide, producing periods where requirements sit awkwardly together.
Vocabulary diverges. The same notions carry different names by level and region, making transposition hazardous.
What stays uniform across the country
A reassuring point, and often forgotten.
Federal matters apply identically across the whole territory. Fire safety, rules on construction products, the liability regime of construction professionals and the insurance obligation do not vary between regions.
That is an important difference from regional matters, where no value can be stated without naming the region, as the guide on construction costs per m² shows.
A professional working across the three regions can therefore rely on a common base, provided they know what belongs to it. The common base concerns fire, products and liability.
The municipal level, the most underestimated
It is frequently omitted, and that is a costly error. The municipal level also produces binding rules.
The municipality has no technical rule-making competence of its own, but it holds three levers producing real effects. Each of them can reshape a project.
The municipal planning regulation, refining or tightening regional rules on its territory, sometimes district by district.
The police regulation, which may impose requirements on safety and occupancy.
The fire service opinion, sought during processing, whose requests become conditions in practice.
Those three levers can only be consulted at the municipality. No national database lists them, which requires direct contact at the start of any project.
How to find your way on a project
A three-step method, applicable whatever the brief. It runs from the federal level down to the municipality.
1. Identify the region and the municipality. They determine two of the three applicable levels.
2. List the subject matters concerned by the project: fire safety, energy, accessibility, acoustics, planning, environment.
3. For each matter, determine the competent level, then look for the text at that level only.
The commonest error is looking at the wrong level. A professional seeking fire safety requirements in regional planning codes will not find them, and may wrongly conclude they do not exist.
The articles in this branch
The article on federal competences lists the matters that remain national and their scope. The fields retained by the federal level are listed there.
The article on regional competences covers the regionalised matters and their divergences. The three regional frameworks are compared there.
The article on what the municipality adds covers the third level and its practical effects. The three municipal levers are detailed there.
This article reflects the division of competences at the date of checking and serves professional orientation. It does not constitute legal advice and does not replace assessment of the individual case.