Sloan-Kettering grows to 115K sf at 1 Dag Hammarskjold Plaza

Cancer center takes an extra two floors at Ruben's Midtown tower

885 Second Avenue in Turtle Bay, Ruben CEO Richard Ruben and Sloan-Kettering CEO Craig Thompson
885 Second Avenue in Turtle Bay, Ruben CEO Richard Ruben and Sloan-Kettering CEO Craig Thompson

Just weeks before moving into a new space at Ruben Companies’ 1 Dag Hammarskjold Plaza in Turtle Bay, Memorial Sloan-Kettering Cancer Center signed for an additional two floors, bringing its total space there to more than 115,000 square feet, sources told The Real Deal.

The hospital is continuing to grow its stronghold on Manhattan’s East Side with an even bigger spread at the 48-story, 805,000-square-foot Class A office tower than planned.

In August, Memorial Hospital for Cancer and Allied Diseases signed a lease for roughly 69,000 square feet across the sixth through eighth floors at 885 Second Avenue, according to CoStar data. The move-in is slated for June, data show.

The hospital recently signed for 10 years for an extra 46,000 square feet on the ninth and 10th floors, sources said.

Asking rents at the building are in the $80s per square foot.

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Ruben’s Susanne Lieu represented the landlord in-house, while a Newmark Grubb Knight Frank team led by Mark Weiss – who has since joined Cushman & Wakefield – represented Sloan-Kettering. Lieu could not be immediately reached for comment, while Weiss declined to comment.

Tenants at the property, located between East 47th and 48th streets, include law firm Wachtel Missry and the Consulate General of Denmark.

The hospital’s main campus is further north. Sloan-Kettering facilities in Manhattan include 1114 First Avenue, 641 Lexington Avenue, 1275 York Avenue, 1429 First Avenue, 1133 York Avenue and 300 East 66th Street.

In April, Weiss and NGKF’s Justin DiMare and Howard Kesseler took home a first-place REBNY Ingenious Deal of the Year award for brokering the $215 million sale of a Department of Sanitation site on the Upper East Side to Sloan-Kettering and Hunter College. The deal resulted in a 1.1 million-square-foot campus where Hunter will train nurses needed at the hospital.