The ultra-rich can’t seem to get enough of New York City real estate.

Forbes reports that New York City properties dominated the top 15 in its list of America’s most expensive home sales of 2014, accounting for nine properties worth tens of millions of dollars.

Top sales not only were closed in ultra-luxury high-rises south of Central Park along the so-called “Billionaires Row” but also in classically posh Upper East Side redoubts on Park Avenue. The was also a record $50.9 million sale in downtown Manhattan,  with Penthouse One at 212 W. 18th St. selling for $50.9 million .

But it was the gargantuan sales of properties at the over 1,000-foot One57 tower at 157 W. 57th Street that were among the most striking. Sales of properties at the building accounted for five of the top sales.

For instance the $56.1 million sale of the entire 82nd floor of One57 to Silas Chou, a former co-chairman of Michael Kors in October; a $55.6 million sale of the 85th floor to an unknown buyer in December; and a $55.5 sale of the 81st floor to the Rebecca Ann Moores Family Trust in November.

An even bigger sale is expected to close at One57 next year: The $90 million purchase of a duplex penthouse by Bill Ackman and some friends, Forbes reports.

Colossal sales are also expected at 432 Park Avenue, now the city’s tallest residential building at 1,396 feet.