Lyon and Villeurbanne are under rent control, which the French call encadrement des loyers. It means the rent on most flats has a legal ceiling, and a landlord who charges above it is breaking the rules. Plenty of tenants pay over the limit without realising, because the ceiling is not printed anywhere obvious and the rules take a few minutes to learn. Here is what the cap is, when a landlord can legitimately go above it, and what you can do if your rent is too high.
The ceiling: loyer de référence majoré
Every controlled area publishes reference rents per square metre, set each year by the préfecture. The one that matters to you is the loyer de référence majoré, the “increased reference rent”. That figure is the maximum a landlord can normally charge.
The ceiling is not a single number. It shifts with:
- the neighbourhood, since the reference rents are set by sector,
- the age of the building,
- the number of rooms, and
- whether the flat is furnished or unfurnished (furnished carries a higher ceiling).
To check a specific flat, you take the reference rent per square metre for its category, multiply by the surface area, and compare the result to the asking rent excluding charges. If the asking rent is higher, it is over the limit unless the landlord has a valid reason to add more, which brings us to the one legitimate exception.
When a landlord can charge more: the complément de loyer
A landlord can go above the ceiling only by adding a complément de loyer, a rent supplement, and only when the flat has a genuinely exceptional feature that comparable flats in the area do not have. Think a large private terrace, an exceptional view, or a high-end renovation well beyond the local standard. Location alone does not count, and neither does something that is simply normal for the area.
The supplement has to be justified and stated separately in the lease. A vague or unjustified complément de loyer is one of the most common ways a rent quietly ends up illegal. If you see one, you are allowed to ask what specific feature justifies it.
What it costs a landlord to get this wrong
This is not a soft rule. If a rent is set above the legal ceiling without a valid supplement, the tenant can send a formal notice, the landlord can be ordered to bring the rent down and repay the overcharge, and a private landlord can face a fine of up to €5,000 (higher for a company). So getting the price right from the start protects the landlord as much as the tenant.
If you think your rent is over the limit
You have more room than you might expect, and there are time limits, so it is worth acting rather than waiting:
- Find the reference rents. They are published by the préfecture for the Lyon metropolitan area and updated annually. Match your flat’s category (rooms, era, furnished or not) and sector.
- Do the sum. Reference rent per square metre, multiplied by your surface area, is your normal ceiling. Compare it to your rent excluding charges.
- Check any supplement. If there is a complément de loyer, ask what exceptional feature justifies it. If there is not a real one, it is challengeable.
- Raise it in writing. You can ask the landlord to bring the rent into line, and if they refuse there is a formal process through the commission de conciliation and, if needed, the court.
How Cajou handles this for you
Rent control is one of the areas where doing the homework really pays off, on both sides of the lease. For every property listed on Cajou, we compute the exact legal ceiling for that flat and check the asking rent against it. If a landlord wants to add a complément de loyer, we flag it and ask them to confirm the feature that justifies it. The pricing decision stays theirs, but it is made with the number in front of them.
For you as a tenant, that means a rent you can trust is legal before you ever sign. For a landlord, it means a listing that will not come back as a fine or a repayment order later. Getting the rent right is not a favour to one side. It protects everyone on the lease.
This is general information, not legal advice. The rules summarised here are current as of 2026 and we keep them up to date as they change. Always check the official sources and your own lease before you sign.