Questione giuridica chiave
Whether the tenants had a declaratory right to install a satellite dish on the leased garden seat.
Decisione estratta
No declaratory right was shown; the complaint failed on the merits.
Motivazione estratta
The mounted concrete base and dish constituted an alteration of the leased premises under Art. 260a(1) CO, requiring the landlord’s written consent, which was not proven.