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One Liberty Plaza is a skyscraper in lower Manhattan, New York City, at the location of the former...

One Liberty Plaza is a skyscraper in lower Manhattan, New York City, at the location of the former Singer Building (in 1968, the second tallest building to be demolished). One Liberty Plaza is currently owned and operated by Brookfield Properties. The building is 743 feet (226 m) high and 54 floors. It was built in 1973. At 2.2 million square feet (204,000 square meters), each floor offers almost one acre (4,046 square meter) of office space. Indeed, it is one of the largest office buildings in New York. Its facade is black, consisting of a sculptural steel frame. The building was originally commissioned by U.S. Steel. It once housed the headquarters of Merrill Lynch. Currently, a variety of tenants occupy the space, from large law firms, such as Cleary Gottlieb Steen & Hamilton, to public and not-for-profit agencies like the Lower Manhattan Development Corporation and the World Trade Center Memorial Foundation. The building is bordered by Broadway, Cortlandt Street, Church Street and Liberty Plaza. The building had a large and substantial renovation in 1989 which involved the creation of a new lobby and elevator system. The lobby and elevators have an extensive security system,