The classification of a municipality as a tense zone determines the applicable notice period, the rent cap upon re-letting, and the taxation on vacant housing. Since decree no. 2025-1267 of December 22, 2025, the map has significantly changed: over 200 municipalities have been newly classified or reclassified. Before signing a lease in 2026, measuring the gap in constraints between tense and non-tense zones allows for anticipating obligations that are often discovered afterward.
Notice, rent, taxation: what changes between tense and non-tense zones
| Criterion | Tense zone | Non-tense zone |
|---|---|---|
| Tenant’s notice period | 1 month | 3 months (unless special situation) |
| Rent upon re-letting | Capped at the last applied rent | Free |
| Tax on vacant housing (TLV) | 17% the first year, 34% thereafter | Not applicable (except THLV resolution) |
| Rent control (caps) | Possible in willing cities | Not applicable |
| Agency fees borne by the tenant | Capped by the Alur law | Capped by the Alur law |
The table shows a clear imbalance. An owner in a tense zone faces a double constraint: they cannot freely increase the rent between two tenants and risk heavy taxation if they leave the property vacant for more than twelve months. For a tenant, moving to a tense zone shortens the notice period and limits the rent increase upon renewal.
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You can check the status of your municipality by consulting the list of cities in tense zones 2026 on Immobilier et Particuliers, updated after the December 2025 decree.
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December 2025 Decree: reclassifications that change the game in Île-de-France and regions
Decree no. 2025-1267 of December 22, 2025, constitutes the latest official update. It includes municipalities that were not classified under the initial decree no. 2013-392 of May 10, 2013. More than 200 municipalities have changed status, in both directions.
The most affected departments are located in Île-de-France (Seine-et-Marne, Val-d’Oise, Yvelines, Seine-Saint-Denis), but also in Rhône, Haute-Garonne, Loire-Atlantique, and Bouches-du-Rhône. Municipalities from the second crown have joined the list, while some peri-urban areas have been removed.
Why check municipality by municipality
The classification does not follow departmental boundaries. In the same department of Seine-et-Marne or Val-d’Oise, two neighboring municipalities can have different statuses. Relying on the department or proximity to Paris is not enough.
The simulator on service-public.fr allows testing an address, but it does not provide an overall view. To compare several municipalities or prepare a housing search in a broad area, an exhaustive list remains more practical than an address-by-address tool.
Rent control in tense zones: an experiment set to expire at the end of 2026
Tense zone does not automatically mean rent control by caps. Rent control by caps only applies in willing cities that have obtained a prefectural order. Paris, Lyon, Lille, Montpellier, Bordeaux, and several intermunicipalities have implemented this system.
The experiment is scheduled to end in November 2026. The government has indicated that it is not in favor of a generalization in its current state, following the publication of a national evaluation study with ambivalent conclusions. Nearly 700 municipalities, however, wanted to apply it or were already applying it.
What this changes for a lease signed in 2026
- A lease signed before November 2026 in a city under rent control remains subject to the caps for its entire duration, even if the system is not renewed.
- A lease signed after the expiration of the system, in the absence of new legislation, would only be subject to the rule of the last applied rent (specific to all tense zones).
- The rule of the last applied rent remains in all municipalities classified as tense zones, regardless of the rent control caps.
The distinction between these two regulatory layers is often misunderstood. The rent cap upon re-letting exists in all tense zones, but the caps by neighborhood (reference rent, increased rent) only concern cities under experimentation.
Tax on vacant housing in tense zones: tightening expected from 2027
The 2026 finance law opens the possibility for municipalities in tense zones to significantly tighten the tax on vacant housing starting in 2027. This measure changes the calculus for owners who keep a property vacant, either by choice or inaction.
Currently, the TLV applies to properties vacant for more than twelve months, at a rate of 17% the first year and 34% in subsequent years. Municipalities will be able to vote for a significant increase in these rates.
The impact on rental strategy
An owner in a non-tense zone who does not rent their property does not pay TLV (unless local resolution for THLV, which has lower rates). In a tense zone, leaving a property vacant becomes a direct fiscal cost, which adds to the absence of rental income.
For a tenant, this tightening could translate into an increase in rental supply in the affected municipalities. Owners would be incentivized to put their properties back on the market rather than bear the tax.
The intersection between the reclassification of December 2025 and the fiscal tightening of 2027 creates a tight timeline. Checking the status of one’s municipality before renting or leaving a property vacant is no longer just an administrative formality: it is a financial parameter that weighs on rental yield as well as on the tenant’s budget.