The school traces its roots to the building now known as Dunbar nursery near the current site of Banbridge Leisure Centre but moved to its present home, Edenderry House on the Lurgan Road, in 1950. A redevelopment begun in 1989 provided a new building, while retaining much of the original frontage; interiors and façade are listed. The School building has a glass atrium and dedicated technology suite and science block. The school has two sports halls, and a large amount of land serving as playing fields for hockey, rugby union, cricket, football and netball, together with five tennis courts.