 The building contains 457 residential units and shares a mixed-use development with a 336-room Marriott hotel and a 400-space parking garage.It rises from the northwest corner of Wabash and Hubbard streets in the River North district of Chicago's Near North Side.Plaza 440 was designed by Solomon, Cordwell, Buenz and Associates, built by the John Buck Company and originally managed by its subsidiary, the John Buck Management Group.