The prep school was founded in 1940 as a result of the drop of numbers and entries into Repton School- a result of travel inconvenience amidst uncertainties created in Britain during World War II which threatened the continuation of the Senior School.

By establishing a junior section, it quickly guaranteed a secured number of students who were to enter Repton School for secondary education.

The school rented the campus from the Church Commission, and purchased the free-hold of Foremarke Hall along with 40 acres of land (practically the entire manor-grounds) and 3 cottages in the Manor.

The Annex holds a Flexible-Boarding house, a Games Room, the School Laundry as well as the Kitchen & Catering area.

Notable alumni of Foremarke who then went on to Repton School include: Tom Chambers (Actor)[1] Will Hughes (Derby County Midfielder)[2] Georgie Twigg (International British Field Hockey Player)[3]