Image: Moso Studio
The penthouse atop the Flatiron District‘s tallest tower, Madison Square Park Tower at 45 East 22nd Street, has gained a floor and nearly doubled in price. The 7,000-square-foot duplex was listed in 2017 for $48 million. Now, Mansion Global reports, the stunning residence 777 feet above the ground has gained a floor, measures over 15,000 square feet and is about to return to the market at $77.7 million, making it one of the most expensive listings in the city.