Once the five viability criteria for a rental project are in place (see our profitability assessment method), a separate question remains to be settled: should a modular accommodation be run as a long-term rental or a seasonal rental? The two models differ not only in revenue potential, which we never quantify in advance since it depends on each project, but in two distinct legal statuses, with obligations and a management rhythm that have little in common. This article offers a strictly comparative decision grid, to be used once the five profitability criteria are already in place.
Understanding the topic
Long-term rental places the home under an ordinary residential lease: an unfurnished lease runs for a minimum of three years, a furnished lease for a minimum of one year (nine months for a student lease). The tenant establishes their residence there, rents are capped in so called tight market areas, and the contractual relationship follows formal notice and termination rules. Seasonal rental follows a different logic: it serves transient occupants who do not establish residency, for one off stays by day, week or month. According to the French Ministry for the Economy, this formula cannot exceed 90 consecutive days with the same client, and the owner sets the price freely, in exchange for heavier contractual and declarative formalities.
To decide between the two, the plot's location remains the starting point, but the question to ask differs from the one posed by the general method: it is no longer about whether the location favours rental at all, but which of the two models it favours. A plot close to an employment hub, a university or a regular transport link naturally points to long-term rental, where demand stays stable year round. A plot in an area with strong seasonal tourist traffic and no nearby employment hub points instead to seasonal rental, where demand concentrates in certain periods. The same plot does not always justify both models at once.
Deep exploration
The formalities differ depending on the model chosen. For a long-term rental, according to the Ministry for the Economy, the landlord must register via the business formalities portal within 15 days of starting the rental activity. For a seasonal rental classified as furnished tourist accommodation, a written contract stating the price and condition of the property is required, and a declaration to the town hall is necessary: registration in municipalities that require it, a simple declaration elsewhere. Since 21 November 2024, the co ownership bylaws must also explicitly authorise or prohibit furnished tourist rental, a point worth checking before any project in a co owned building.
Local regulation weighs differently on the two models. In tight market areas, long-term rental can be subject to rent control. Seasonal rental is regulated municipality by municipality: some towns cap the number of nights allowed for a secondary residence or require stricter registration. The tax regime also differs between the two models: rental income for an unfurnished long-term lease, business income for a furnished rental, long-term or seasonal, with thresholds that change from one year to the next. We offer no tax or legal advice here: these points should be checked with the local town hall and with a tax or legal professional before any decision.
Practical guidance
In summary, three questions help narrow the choice. Is the plot close to a stable employment hub or to an area with strong seasonal tourist traffic? Is the project owner ready to take on active, hands on management with frequent occupant turnover, or would they rather have a more stable, multi year tenancy? And does the local municipality impose particular constraints, rent control on one side, a cap on nights or stricter declaration on the other? None of these questions has a universal answer: each must be checked for the specific plot and project, using the five criteria method to then quantify the viability of the chosen model.
This comparison does not replace a feasibility study specific to each project. Our Invest section outlines the two models and offers a first indicative simulation tool, and our configurator lets you move forward once the operating model is chosen.
Architectural perspective
A habitat that rents well is never just a question of good location: it is also an operating model chosen with full knowledge of its rules, not discovered after the first booking.
