One57 sponsor unit sells for $30M

An affiliate of George Constantin's Heritage Realty Services believed to be buyer

George Constantin and One57
George Constantin and One57

A 59th-floor condominium unit at Extell Development’s trophy residential tower One57 has sold for $30 million.

The buyer, Efstalamar LLC, shares an address with the George Constantin-led Heritage Realty Services. The three-bedroom apartment — a sponsor unit — spans 4,200 square feet. Four sponsor units were listed for sale by Extell in February, asking between $18.85 million and $32.75 million.

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An affiliate of Heritage Realty sold a five-story hostel at 201 West 87th Street known as Jazz on Amsterdam Avenue for $7.9 million in 2011, as previously reported. [NYO]Mark Maurer