The domestic buildings within the wall included a kitchen, hall, solar, guest chambers, and an ante-chapel. Water from a natural spring was piped under pressure into the castle buildings. A square gate tower, largely ruined, guards the entrance to the inner castle, and may have been the first part of the original castle to have been partially constructed in stone. On the opposite side, a square tower projecting from the wall contains the chapel; it is thought to have been a 13th-century addition. It appears to have been converted into a gun emplacement during the English Civil War. A former external bailey wall, apparently constructed of timber with earthwork defences, has since been destroyed, leaving no trace. There are also historical references to a dungeon, also now vanished.