#7. Gideon Gartner – Manhattan penthouse
This year Gideon Gartner sold his Park Millennium penthouse (the asking price was $29.5 million, but sources close to the sale said that he got less than that amount), and downsized to a cozier 3,000-square-foot penthouse in Manhattan’s Metropolitan Tower Condominium on West 57th Street.
Gartner paid $9.5 million for the 1-bedroom apartment, according to according to Curbed. To evaluate the homes, we looked at recent sale records and local tax records and assessment values, and we spoke to local realtors and experts at Zillow and Blockshopper.