Background informationProject Created: October 24, 2010
UN Headquarters Renovation
Year in Operation:
Other Government Building
Design / Construction
Substantial Alteration of Existing Facility
Major renovation and rehabilitation of the UN's 17 acres New York City campus. Current cost estimate is $1.87 billion. Major elements include asbestos removal, mechanical system replacement and upgrade, along with a substantial reworking of the main office tower, including more open layours, removal of non-structural walls. In the second phase of the project, the slope roofed General Assembly building will be renovated and rehabilitated. Since the building was constructed after the end of World War II, the number of member nations has tripled, and the building has not received a substantial renovation. Costs will be split by member nations.
Delivery Method as described in the country where it's located:
Design Bid Build
Is the project still active:
11 member team of design consultants working on the revised design.
799 United Nations Plaza
United States of America
Souces of Project Support (Non-monetary)
Access to Land: Existing site.
Souces of Project Support (Monetary)
From Public (Government) Sources to Producers: Split among member nations.
Project Delivery & Finance Method
All Public Finance. Public Sponsor contracts for initial design, and separately contracts for initial construction. Public Owner operates and maintains the resulting facility.
Construction Manager At Risk Variants: Public Sponsor contracts with Construction Contractor after Design is Complete.