Six months ago when CityRealty released its last CR100 report -- an index comprised of the top 100 condominium buildings in Manhattan -- One57 surpassed long-time frontrunner 15 Central Park West as the most expensive condo, coming in at $6,010 per square foot, compared to 15 CPW's $5,726. But this time around, 15 CPW has retaken the crown with an average sales price of $6,039 per square foot over the last 12 months. Coming in second is the Residences at the Mandarin Oriental at $5,956, and One57 falls to third at $5,175, a 13 percent drop over the last year. CityRealty notes, however, that the Robert A.M. Stern-designed condo may have difficulty maintaining its top spot, as big-time new developments 432 Park Avenue, The Greenwich Lane, and 10 Madison Square West have now made their debut on the CR100.
More trends and data

Six months may not seem like a long time, but a lot can happen in the Manhattan building market in 180 days, which is why CityRealty has released its new CR100 report, "an index comprised of the top 100 condominium buildings in Manhattan." The data tracks the performance of these buildings through the second and third quarters of 2015, and, not surprisingly, One57 has come out on top. The Billionaires' Row powerhouse has surpassed long-time leader 15 Central Park West as the most expensive condo on the island, coming in at $6,010 per square foot over the past 12 months, as compared to 15 CPW's $5,726. It also steals the spotlight for the majority of the last six months' most expensive sales.
More condo data ahead