To let a second home as a short-term rental in Paris, a change of use is mandatory. It is one of the most technical areas of Paris regulation — and often the most expensive. A complete breakdown: procedure, compensation, current prices and alternatives.
What is a change of use?
A change of use is an administrative authorisation issued by the City of Paris that allows premises used forhousing to be converted to another use (commercial, professional, or furnished tourist letting).
Without this authorisation, letting a Paris home as a short-term furnished rental (less than 1 year) is considered a misuse of housing, and is therefore illegal. The penalties are heavy: a fine of up to €100,000 per property, plus a daily penalty of up to €1,000 per day and per m².
Change of use applies to second homes only. If you let your main residence as a short-term rental, the 90-night rule applies (no change of use required).
The two types of change of use
1. Temporary change of use
A temporary change of use is granted for 3 to 9 years, renewable, without compensation in most arrondissements. It is attached to the owner, not to the property: if the property is sold, the new owner must apply again.
This regime is more flexible but has limits:
- A limited number of homes authorised per individual owner (often 1)
- Cannot be sold or transferred
- May be refused in saturated arrondissements
2. Permanent change of use (with compensation)
A permanent change of use is granted with no time limitand transfers with the property. But it requires compensation: the owner must give the City the equivalent of the housing they "take".
In practice, you must convert commercial or office premises into housing of at least the same floor area (or even double in high-pressure arrondissements).
Compensation: the real financial issue
The compensation rule is geographical: the greater the housing pressure in an arrondissement, the more demanding the compensation.
| Arrondissements | Compensation required |
|---|---|
| 1st, 2nd, 4th, 5th, 6th, 7th, 8th, 9th | Double (you must create twice the converted floor area) |
| 3rd, 10th, 11th, 14th, 15th, 16th, 17th | Single (same floor area) |
| 12th, 13th, 18th, 19th, 20th | Single (same floor area) |
A concrete example: to obtain a permanent change of use for a 50 m² apartment in the 4th arrondissement, you must provide as compensation 100 m² of commercial or office space converted into housing.
The market for commercial rights
Few owners have 100 m² of commercial premises to convert. Fortunately, there is a secondary market for commercial rights ("commercialité"): you can buy from another owner the "right" corresponding to converted premises.
Prices in 2026 vary widely by arrondissement:
| Area | Average price per m² of commercial rights |
|---|---|
| Arrondissements 1–8 (historic centre) | €3,500 to €4,500 / m² |
| Arrondissements 9–11, 15–17 | €2,000 to €3,000 / m² |
| Arrondissements 12–14, 18–20 | €1,200 to €2,000 / m² |
For the same example (50 m² in the 4th, double compensation = 100 m²), the commercial rights cost between €350,000 and €450,000, plus the administrative procedure.
Weighing up the opportunity
An investor must assess whether the extra short-term income (compared with a standard lease) offsets the cost of the commercial rights over 10–20 years. In most cases the ROI is positive in the tourist arrondissements (1st–7th), and more debatable in the outer arrondissements.
The administrative procedure
A change-of-use application is a technical file that requires:
- The dedicated CERFA form
- Floor plans of the home (before/after)
- Proof of ownership
- The building's co-ownership rules (which must allow commercial use)
- Proof of compensation (if applicable)
Average processing time: 6 to 12 months. The application may be refused in saturated areas or if the co-ownership objects.
Legal alternatives to a change of use
1. Mobility lease (1–10 months)
The mobility lease (2018 ELAN law) is not affected by change-of-use rules: it is a standard residential letting, limited to 10 months per contract. Advantages: no change of use required, no registration number needed. The rent remains subject to rent control.
2. Civil lease (medium to long term)
The civil lease (Civil Code) is also exempt from change of use for compatible profiles (companies, embassies, tenants' second homes). Rent set freely. Find out more.
3. Standard residential lease
A standard residential lease (3 years unfurnished, 1 year furnished) requires no change of use, but is subject to Paris rent control.
Our Full Concierge recommendation
For most non-resident Paris owners, a permanent change of use is only profitable if:
- The property is in an arrondissement with strong tourist potential (1st–7th, 16th)
- The floor area is large enough to absorb the cost of the commercial rights (over 35–40 m²)
- You have the capital to fund the operation without eroding your returns
In other cases, we recommend a medium-term civil leasestrategy: comparable returns (thanks to the free rent), without the upfront investment in commercial rights, and with much simpler management.
Every situation is unique. Our team carries out a free comparative simulation of the different strategies: civil lease, short-term rental with a change of use, long-term rental as an LMNP. Within 24 hours, you know which one maximises your net return.
Need personalised support?
Full Concierge manages 150+ apartments in Paris and the inner suburbs. We support you on every regulatory, tax and operational aspect. Free estimate within 24 hours.
