111 West 57th Street, also known as the Steinway Tower, is a supertall residential project by developers JDS Development Group and Property Markets Group in West Midtown in Manhattan, New York City. Located at 111 West 57th Street near Sixth Avenue, the development is a combination of the original landmarked Steinway Building designed in 1925 by Warren & Wetmore, and a new tower addition on the adjacent site. Parkside Construction Builders is the general contractor.