Broadmoor was developed on land that had been logged by the Puget Mill Company for sixty years. In 1920, the parcel was split in two. The western 230 acres (930,000 m²) were given to the city, who developed Washington Park on the site; the eastern 200 acres (800,000 m²) were developed as Broadmoor by a group of businessmen that included E. G. Ames, general manager of Puget Mill.