400 Ferry Road, Sag Harbor, N.Y. 11963
Sale price: $36,000,000

Tyndal Point—a 55-acre property with three separate residences and 3,000 feet of shoreline—first hit the market in 2007 at $80 million, reported curbed.com. While it sold at a significant discount, it is one of the biggest sales in that area of Long Island. The estate went in June to billionaire entrepreneur Jeff Greene, who was also a candidate in Florida’s 2010 Senatorial election.

*Sale data: Corcoran

Photo Courtesy of Corcoran