LAUSANNE. Tenants who list their rented flats on short-stay platforms without their landlord's consent commit a breach justifying termination, the Vaud cantonal court has ruled, in a judgment that property lawyers across Switzerland say will be cited in disputes from Geneva to Zurich.
The case concerned a two-bedroom flat near Lausanne's Flon district, leased at 1,650 francs a month and listed on a major platform for much of two years while the tenant lived partly with a partner elsewhere in the city. The landlord learned of the listings from neighbours, demanded they cease, and terminated the lease when they continued. The tenant challenged the termination as abusive.
The legal question was whether occasional subletting through platforms falls within the tenant's ordinary right to sublet under the Code of Obligations, which requires only that the landlord be informed and cannot refuse without valid reason. The court drew a line between occasional, disclosed sublets and systematic commercial use, holding that the latter transforms the flat's purpose and entitles the landlord to end the tenancy after a single unheeded warning.
The dispute reached the courts amid a broader squeeze on Lausanne's housing market. The city posts a vacancy rate below 0.5 per cent, among the tightest in the country, and officials estimate that several thousand dwellings are offered as full-time short-stay accommodation. The city council has twice debated registration schemes for platform listings without reaching agreement.
Evidence in the case showed the flat had hosted more than forty separate bookings in eighteen months, generating income roughly double the rent. The tenant argued that Swiss law permits reasonable use of one's home and that the landlord suffered no quantifiable damage. The court answered that damage lies in the changed use itself: increased wear, building insurance implications and the neighbours' loss of quiet enjoyment. Two neighbours testified to arriving guests with luggage at all hours, testimony the judgment cites at length.
Tenant organisations reacted with alarm to the precedent's possible breadth. The Vaud branch of the national tenants' association ASLOCA said most subletters are not profiteers but residents covering rent during holidays, and warned landlords might invoke the ruling to intimidate ordinary tenants. It has urged its members to inform landlords in writing before any listing, however brief.
Landlord representatives welcomed the clarity. The Vaud property owners' federation said the judgment confirms what its members have long maintained: a residential lease is not a hotel licence. It added that it would advise members to act proportionately, reserving termination for cases of systematic commercial letting.
A lawyer specialising in tenancy law in Lausanne said: “The court has given us a spectrum with occasional subletting at one end and a business at the other, and the hard cases will now be fought over where a given set of bookings falls.” She expects booking frequency and intent to profit to become the decisive factors.
Platform companies, which were not parties to the case, face indirect consequences. Municipal officials in Lausanne and Geneva say the ruling strengthens their hand in negotiations over data-sharing agreements, since hosts operating in breach of their leases now carry a clear legal risk that platforms may be pressed to help enforce against. One platform said it already advises hosts to review their leases and declined to comment further.
The tenant has thirty days to appeal to the Federal Supreme Court. Property law specialists consider an appeal plausible on the narrow question of whether a single warning suffices before termination, but few expect the court's core distinction between residence and commerce to be disturbed. Lausanne's conciliation authority, which hears tenancy disputes first, has already begun citing the judgment in settlement talks.
For Swiss cities wrestling with the same arithmetic of scarce flats and lucrative tourists, the Lausanne judgment supplies a private-law tool where public regulation has stalled. The next frontier, lawyers agree, is the condominium: owners' associations in several cities are already testing whether building rules can bar short stays outright.