Question juridique clé
Whether the bank's claim for the unpaid sale price was due and enforceable
Solution extraite
No; the contractual term linked payment to handover of the premises, and that term had not occurred.
Motifs extraits
Under Art. 75 CO, the parties validly agreed a due date tied to possession of the premises. Since the storage areas were neither taken over nor offered in the agreed finished state, and no later agreement changed the terms, the balance remained non-exigible.