Pulborough Castle is an earthwork motte and bailey fortress, standing at the highest point of a ridge. Enclosed by a wide ditch with a counterscarp bank, is the large round motte and to the south commanding the steep drop to the River Arun is a bailey platform, also enclosed by a wide ditch. The site has a dense cover of trees, so the best view is in winter. 5 miles south is Amberley Castle and 6 north-west is Petworth House.