The Warwick Allerton Hotel or Warwick Allerton Hotel Chicago (formerly Allerton Hotel and Allerton Crowne Plaza Hotel) is a 25-story hotel skyscraper on the Magnificent Mile in the Near North Side community area of Chicago, Illinois. It was the first building in the city to feature setbacks and towers resulting from the 1923 zoning law. The building was designated a Chicago Landmark on May 29, 1998.