Kernrechtsfrage
Whether the lease termination for renovation was abusive under Art. 271 CO
Extrahierter Entscheid
The termination was not abusive because the landlords had a legitimate interest in carrying out extensive renovation works; the tenant's continued occupation would complicate and prolong the works.
Extrahierte Begründung
A termination for major renovation is generally lawful even if the tenant is willing to stay during the works. The owner's choice of renovation scope is in principle protected, and the works here were significant and not merely cosmetic.