During the school's Ofsted inspection in 2009, it received an "outstanding" rating in 26 out of 27 criteria.

The original parts of the building include the tower block, and the ground floor building connected to it, which covers the main hall and science blocks.

This has enabled departments to grow and offer more to its pupils by way of facilities and improved teaching rooms.

[4] Castle School is heavily involved in sport and offers pupils a wide variety of sports such as football, basketball, tennis, golf, hockey, parkour, athletics, and many more to participate in.

The Castle school has a 3G pitch and athletics track, as well as the usual sports facilities.