Hines sold its 5% interest in the San Francisco building for $210.9m. : Boston Properties has taken full control of the Salesforce Tower office building, acquiring the remaining 5% interest in the San Francisco building from Hines for $210.9m (€188m). Boston Properties said in its first-quarter earnings report that the amount paid for the 61-storey building was reduced by around $24.1m to $186.8m to reflect the repayment of Boston Property’s preferred equity and preferred return in the venture.