 In May 1990, the district was one of ten that were under consideration for Chicago Landmark status, and it was designated a Chicago Landmark on October 2, 1991.The district was named for the Park, which was designed by landscape architect Frederick Law Olmsted.The T. G. Dickinson Real Estate Company, which created the subdivision in 1892, mandated setbacks for all properties and originally sold lots in small groups of two or three.