Financial firms more than double space at 280 Park Ave.

Landlords SL Green and Vornado are spending $125 million on capital improvements

Vornado's Steven Roth, 280 Park and Sl Green's Marc Holliday
Vornado's Steven Roth, 280 Park and Sl Green's Marc Holliday

Two 280 Park Avenue tenants — which were formerly in smaller, temporary spaces inside the 1.2 million-square-foot building — have inked deals that more than double their footprints, GlobeSt. reported. Asset management firm Blue Mountain Capital and consulting firm Promontory Financial Group now each have a 49,541-square-foot floor.

Blue Mountain was previously in 22,250 square feet on the fifth floor, and Promontory had 19,495 square feet on the 40th floor.

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Brad Siderow of the Siderow Organization represented Blue Mountain. Promontory did not have a representative broker, GlobeSt said. The landlords, SL Green and Vornado Realty Trust, were represented by Mary Ann Tighe and Peter Turchin of CBRE.

The building is undergoing capital improvements valued at $125 million. Work includes a new lobby that will span the block between 48th and 49th streets, as well as infrastructure and energy efficiency improvements. [GlobeSt]Zachary Kussin