Question juridique clé
Whether the lease termination was abusive under Art. 271 CO because the landlords' stated change-of-use project was a pretext.
Solution extraite
A real intention to change the use of the premises can, in principle, justify termination; if the motive is genuine, the tenant must prove that the project is certainly impossible under public-law rules. The lower court applied the wrong test by treating a mere significant probability of refusal as sufficient.
Motifs extraits
The validity of the notice does not depend on prior administrative authorization or filing of building-permit documents. A foreseeable permit refusal may only be an indication that the stated motive is a pretext. The appellate court must therefore decide whether the landlords' motive was genuine or merely a sham.