Questione giuridica chiave
Whether the architect contract for parcel 1 was tacitly transferred to Z________ SA.
Decisione estratta
No tacit transfer was established; the seller remained the contractual debtor.
Motivazione estratta
The alleged transfer was neither inserted in the notarial sale deed nor agreed in a separate written or oral contract. The circumstances did not compel the conclusion that the buyer accepted the transfer, and the subsequent correspondence did not clearly announce it.