Bank of America Merrill Lynch equity capital markets boss Guy Foster sold his Northbridge, lower North Shore home ahead of its scheduled late 2014 auction.
Built in 2008 with 395 square metre space, it was sold through McGrath agent David Howe for close to $5.25 million.
The five bedroom Tycannah Road home was built on a 589 square metre block that cost $2.3 million in 2004.
CoreLogic RP Data puts the suburb's median at around $2.3 million.