Questione giuridica chiave
Whether the lease clause granted the tenant a true option to extend the lease for five years by unilateral declaration
Decisione estratta
No. The clause required later agreement on essential terms, especially rent, so it was not a genuine option.
Motivazione estratta
A true option requires all essential contractual elements to be fixed in advance. Here the parties contemplated later negotiations on rent, so the tenant's notice could not by itself create a new five-year lease.