NEW YORK CITY—JPMorgan Chase has achieved LEED Platinum status for the renovation of its global headquarters at 270 Park Avenue in Manhattan.

In the United States, existing buildings contribute 50 to 80 percent of urban greenhouse gas emissions, according to the Building Owners and Managers Association. This renovation will allow the 50-story building to cut its electricity consumption in half compared to pre-renovation levels. In addition, the building will save more than 1 million gallons of water a year by installing new, highly efficient systems and an innovative draining and filtering system.

Earning the Platinum rating meant upgrading and modernizing every system and feature in the 50-year-old building – from heating, air conditioning and lighting, to insulation, plumbing fixtures, flooring and outside views – all while the building remained occupied. To minimize disruptions, an average of 400 construction workers a day completed the renovation in phases, working on up to 10 floors at a time.

“With each new LEED-certified building, we get one step closer to USGBC’s vision of a sustainable built environment for everyone within a generation,” said Rick Fedrizzi, President, CEO and Founding Chair, U.S. Green Building Council.