The inner ward was entered by crossing a drawbridge across the moat and entering through a fortified gate on the west side. The drawbridge has now been replaced by a wooden bridge. On the north side of the inner ward was the bishop's hall, measuring 60 ft by 30 ft (18.3m by 9.1m), now in ruins. To the east side of the inner ward stands the keep, measuring 84 ft by 60 ft (25.6m by 18.3m) and high. The keep is said to have been built by Hugh de Puiset.