PRE-COMMITMENT leases and rents for upcoming prime offices are picking up as occupiers are warming to these upcoming swanky buildings with large floor plates in a "flight to efficiency". Swiss private bank Julius Baer has signed a lease at close to double-digit rent for a "high density floor" spanning 100,000 square feet at Marina One. Julius Baer is slated to give up its 72,000 sq ft of space spread...