A waterfront estate in Bal Harbour has traded for $42,973,750 in an off-market transaction, marking a record for the priciest sale in Bal Harbour this year. Located at 56 Bal Bay Drive, the newly completed waterfront estate offers 7 bedrooms, 8 full baths and one-half bath across 10,801 square feet of interiors on a sprawling 21,225 SF lot with 100 feet of prime water frontage.