50 United Nations Plaza Image
New York, New York, United States

50 United Nations Plaza

Lendlease provided construction management services for the 50 United Nations Plaza, located on 823 First Avenue.

50 United Nations Plaza

10 GZ/UNP Realty, Zeckendorf Development LLC, Eastgate Realty LLC

New York, New York, United States


307,000 square feet

Construction Management, GMP

Fosters + Partners, SLCE Architects

Project outcome

This 44-story, 548 foot tall luxury condominium features 88 residential units, a health club, swimming pool and deluxe lobby including a fireplace and the latest telecommunications technology.

The building's entrance features a sliding gate leading to a drive court, large overhead canopies and extensive planting areas. The lobby boasts a water wall and central fireplace. Additionally, an automobile lift to the sub-cellar private parking garage is hidden by an ivy-covered mesh green screen and trellis framed by structural steel, forming a canopy.

The structure is reinforced concrete and includes two cellar levels. The external skin utilizes curtain wall and the roofing consists of EPDM. The foundation is spread footings on rock and the Superstructure 9" slabs of reinforced concrete on a typical 12' slab to slab. The building incorporates a four-pipe fan coil HVAC system, fire sprinkler system, the latest hi-tech fiber optic cabling and a high-level security system.

The residences' interior finishes include Poliform Varenna kitchen cabinets and Miele and Subzero appliances. Each unit has solid sand and finish-in-place wood floors, and the bathrooms consist of marble floors and walls with teak wood cabinets.