It follows the curriculum standards set by the Ontario Ministry of Education and was officially opened in September 2000.

The school was built in order to accommodate the rising population of its surrounding suburban area, which continues to grow in rapid numbers.

Previously, residents of the town of Georgina (including, among others, the communities of Keswick, Sutton, Pefferlaw, and Udora) commuted to Sutton District High School.

surpassed 2200, and would only rise due in part to the double cohort.

Already well above its intended capacity, Keswick High School was built.