The classification of a municipality as a tense zone determines three direct parameters of a lease: the capping of rent upon re-letting, the notice period for the tenant, and the owner’s liability for the vacant housing tax. Before signing a rental contract in 2026, checking if the property’s address is on the official list helps avoid drafting errors in the lease and potential disputes later on.
Tense zone decree: why the list changes and what it means for a lease
The list of municipalities in tense zones is not fixed. It is updated by decree, and the latest text in force is the decree no. 2025-1267 of December 22, 2025. Each new decree can add or remove municipalities, which instantly modifies the obligations attached to leases signed after its publication.
The technical point to remember: when a municipality enters a tense zone, the effects on new leases and re-lettings are immediate, with no transition period. The rent upon re-letting becomes capped, the tenant’s notice period is reduced to one month, and the municipality may be subject to the vacant housing tax as soon as the decree is published.
For a landlord drafting a lease in July 2026, consulting the list of tense zones 2026 on Immobilier et Particuliers allows for a quick cross-check of an address with the latest decree in force, even before setting a rent or drafting the notice clause.
Tense zone simulator on service-public.fr: what it checks and its limitations
The official simulator hosted on service-public.fr allows you to enter the name of a municipality and find out if it is classified as a tense zone according to the latest decree. It asks for the lease signing date and then indicates the applicable notice period: one month in a tense zone, three months outside a tense zone.
This simulator complies with decree no. 2025-1267 of December 22, 2025. It answers a binary question (tense zone or not) and provides the direct consequence on the notice period. It does not cover other effects of the classification.
Three limitations to be aware of before relying on it as the sole tool:
- The simulator does not provide any information about the capping of rent upon re-letting. You must separately verify if the municipality also applies a rent control mechanism (supplementary rent, increased reference rent), which falls under a different framework.
- It does not distinguish between the tense zone as defined by the 2013 decree (historical list) and the fiscal zoning (zones A, A bis, B1, B2, C) used for other schemes like Pinel or zero-interest loans. A municipality can be in zone B1 without being in a tense zone, and vice versa.
- It does not take into account the rental permit, a municipal mechanism independent of the tense zone classification, which requires prior authorization for rental in certain degraded neighborhoods.
Rent upon re-letting in a tense zone: the capping rule to apply
In a tense zone, a landlord who re-rents a property after a tenant’s departure cannot freely set the rent. The principle is: the new rent cannot exceed the last rent charged to the previous tenant, adjusted according to the rent reference index (IRL).
Three exceptions allow exceeding this cap:
- The previous rent was clearly undervalued compared to rents in the vicinity for comparable properties.
- The landlord has carried out improvement works since the tenant’s departure, for an amount at least equal to the last year’s rent.
- The property has not been rented for more than eighteen months, allowing the rent to be set at market price.
For a lease signed in 2026, verifying the classification in a tense zone directly influences the amount stated in the contract. A rent set above the authorized cap exposes the landlord to a rent reduction action from the tenant.
Vacant housing tax in a tense zone: a cost to anticipate
The classification in a tense zone makes the property potentially subject to the vacant housing tax (TLV) if it remains unoccupied. The rate reaches 17% of the rental value in the first year of vacancy, then 34% thereafter.
This fiscal mechanism aims to encourage owners to put their properties on the rental market. For an owner who is hesitating between leaving a property empty and renting it out, the classification in a tense zone shifts the economic calculation: vacancy becomes significantly more expensive than renting, even with capped rent.
Checking the classification of the address before making a management decision (renting, selling, leaving vacant) allows for the integration of this fiscal parameter from the outset.
Tense zone and rent control: two mechanisms not to be confused
Confusion is common. The classification in a tense zone (2013 decree, updated in 2025) produces effects on the notice period, the capping upon re-letting, and the TLV. Rent control, on the other hand, is a distinct mechanism that sets a reference rent, an increased reference rent, and a decreased reference rent by neighborhood and by type of property.
Rent control does not apply in all tense zones. It only concerns municipalities that have made a specific resolution to implement it, and it relies on a prefectural order setting the reference rents. Paris, Lyon, Lille, Montpellier, or Bordeaux apply it, but hundreds of municipalities classified as tense zones do not have strict rent control.
Checking the tense zone does not exempt you from checking rent control: these are two distinct searches, based on two different criteria. A lease can comply with the capping upon re-letting while exceeding the increased reference rent, which constitutes a separate offense.
For a tenant signing a lease in 2026, the most reliable approach remains to first verify the classification in a tense zone via the official simulator or the current decree, then to check if the municipality applies complementary rent control. These two checks take a few minutes and help avoid disputes that can last for months.