The original school buildings were designed using a system of standard prefabricated components, and construction work started in May 1964.

[1] In January 2017 the school moved into a new purpose-built £15 million building beside the old one, the latter being consequently demolished.

[2] Originally North Hertfordshire District Council turned down the application on the grounds that the development would have a detrimental effect on neighbouring residential areas "due to its size and proximity to nearby buildings."

However, the planning inspector dismissed these claims stating that the building would not have an adverse effect on the locale.

Each block contains a group of subject, for example Unwin has sciences and Parker has humanities.