[2] The castle's architecture reflects changing styles through the ages, making it one of the most important historical buildings in the south of England.

The large motte was formed around the massive foundations of a Norman tower and then totally enclosed by a shell keep, with buttress turrets and a shallow gatehouse.

Attached to the motte is a triangular inner bailey, with a fine range of domestic buildings and a fifteenth-century brick entrance tower.

A letter in 1594 mentions that white clay was dug in Farnham Park to make drinking vessels used by lawyers at the Inner Temple in London.

[6] Here, artists such as Roland Penrose and Julian Trevelyan as well as the magician Jasper Maskelyne were trained in the arts of military camouflage.