135 East 57th Street (also known as Tower 57) is a skyscraper at in the Midtown Manhattan neighborhood of New York City, New York, U.S. Designed by Kohn Pedersen Fox, it was built in 1987 and stands at the northwest corner of the intersection of 57th Street and Lexington Avenue. The building was constructed in a postmodern style, with Art Moderne influences, and measures 430 feet (130 m) tall with about 32 stories. The facade consists mostly of gray granite, and the massing or general shape consists of a high-rise shaft curving around a plaza at the street corner. The interior covers about 456,000 square feet (42,400 m2) and includes two retail basements, a neoclassical lobby, and offices above.
135 East 57th Street was developed by Madison Equities, which had also developed the Galleria immediately to the west. Although Madison Equities had leased the site from the Wallace family in 1972, work on the tower did not begin until 1985, amid legal disputes. The building was substantially completed in 1987, initially with an art and antiques dealership, Place des Antiquaires, in the basements. Though most of the office space was occupied by 1990, Madison Equities surrendered ownership to the holders of the building's mortgage loan in 1992. The Cohen Brothers group bought the building's leasehold in 1997 and renovated the lobby and plaza. TF Cornerstone acquired the building in 2025 and announced plans to convert it into apartments.