Condominiums/Floors 85 432 Park Avenue has 84 floors and its roof height is 450 feet. This building is also known as The Peak of Chinatown because it is one of the highest buildings in New York City. It was built in 1973 by Chinese-American architect I. M. Pei for $18 million to be his first major project outside of China. The building has been called China's Sears Tower and some call it the tallest building in the Western Hemisphere. Pei died in 2016 at the age of 95. He is best known for designing the National Gallery in London, the Louvre Museum in Paris, and the Smithsonian Institution's National Gallery of Art in Washington, D.C. The building has 532 apartments from which to choose. Each apartment measures about 1,500 square feet (140 m 2) and can cost up to $5 million or more. There are also two penthouse suites with terraces that measure 6,000 square feet (560 m 2) each.