Spanx

That's right, $18 million. According to city records, Spanx founder and self-made billionaire Sara Blakely sold her apartment at 15 Central Park West for $30 million, almost triple the $12.11 million she paid for it in 2008. The sale comes on the heels of CityRealty releasing its CityRealty 100 list of most expensive homes in the city, on which 15 Central Park West is listed first. The prestigious, Robert A.M. Stern-designed building has an average price per square foot of $6,288 (the Time Warner Center, which came in second has an average of $4,689) and it also holds the priciest condo sale through the second quarter of 2014 at $48 million.
More about Blakely's highly profitable sale