Originally a piece of land surveyed in the township of Etobicoke in 1793 by local developer Frederick Davidson which was set aside for the use of the government mill or the King's Mill located at the first rapids upstream from Lake Ontario and was later used for his 'Brookwood' estate. The house was eventually demolished in 1961 and the Etobicoke Board of Education built and opened Kingsmill on September 3, 1963 at cost of $982,210.00. Designed by architect Gordon Adamson, the school building featured 8 classrooms 1 art room, 11 multiple shops tailored for students with slow learning disabilities, a cafetorium, double gymnasium, and library. In 1972, Kingsmill hosted Humber College's women's basketball team due to lack of home games at their campus. From 1976 until 1979, Kingsmill's students were accommodated at nearby Crestwood Junior School, which was then closed in 1976. An accommodation review occurred in 1987 when EBE originally decided to close Kingsmill and Humbergrove Secondary School in April 1987 since enrolment went down at the 207 mark in 1987 and 191 in 1988. Meanwhile, the Metropolitan Separate School Board has offered to hand over Kingsmill to ease overcrowding conditions at Michael Power/St. Joseph High School. In March 1988, the EBE approved the closure of Kingsmill effective June 1988. At the April 28, 1988 meeting with the Metropolitan Toronto School Board and the MSSB, the Kingsmill property has been perpetually leased for 99 years which was approved in November 1988. The programs at Kingsmill and Humbergrove were consolidated into Westway High School that is renamed to Central Etobicoke High School. The site needed a complete revamp to become academically oriented schools and costs $3 million. As a result, the Kingsmill transfer money of $4.8 million was allocated for the renovation of Etobicoke School of the Arts in 1989. The Kingsmill campus was temporarily used in early 1989 when De La Salle College was destroyed by student vandalism and flood costed over $4,000,000.00 of damage to the main building at the Fanham campus. On September 5, 1989, the school was officially reopened as Bishop Allen Academy with the area previously served by Etobicoke's first Catholic secondary schools in Our Lady of Sorrows Parish; Michael Power school for boys and St. Joseph's, Islington for girls which, having combined, moved from the area in 1993.
