Acton Burnell Castle, Shropshire

English Heritage
Acton Burnell Castle, actually a fortified manor house, stands near the village of Acton Burnell. It is believed that the first Parliament of England at which the Commons were fully represented was held here in 1283, in the nearby barn. Today all that remains is the outer shell of the manor house and the gable ends of the barn.
The manor house was built in 1284 by Robert Burnell, Bishop of Bath and Wells, friend and advisor to King Edward I. The building was rectangular with a tower at each corner. It was three storeys high consisting of a hall, solar, bedrooms, offices, chapel and kitchen.
Much of the building was demolished by the mid-17th century.
Today what remains looks interesting. Only the shell of the residence is accessible, via a path through a wood.
Your satnav may take you to the entrance of a college. If so, drive through the village till you see the brown signs (same postcode).