Free tool · Décret tertiaire
Are you subject
to the décret tertiaire?
The instinct is to read the threshold building by building. The text, for its part, adds them up: a vet with a 700 m² practice who also runs a second 400 m² site is within scope. Thirty seconds to find out, and the list of what to gather before 30 September.
Am I subject to the décret tertiaire?
Thirty seconds for an orientation — not a regulatory qualification.
Step 1 of 4
How it works
Three questions, one minute
The cumulation rule, applied
The threshold is not read building by building. The tool adds up by site and by land unit, as the text does.
The real scope
Multi-occupancy, ratchet effect, exclusions: the three traps that wrongly convince people they are out of scope.
What comes next, not just the verdict
The three pieces of data to gather, the deadline, and the lease question — enough to act on as soon as you leave the tool.
Project decoder
Start my project
4 minutes. 6 questions. A personal reply from Hélène or Alexis within 24 working hours.
Why 4 minutes instead of a contact form?
Because the person who calls you back is not a salesperson — it is the architect who will draw your project. We want to understand before we propose a meeting, not the reverse.
We answer personally within 24 working hours. Phone, short video call, or voice note — your choice.