The castle has six drum towers, with a domestic range connecting two towers on the northern side, protected by a precipice overlooking the Eller Beck. The first floor comprises the original kitchen, great hall, withdrawing rooms and the lord's bedchamber. New kitchens, storage and work cellars make up the ground floor. The remaining towers are military in nature and purpose. In the 16th and 17th centuries were added a new entrance staircase (replacing the original drawbridge), a further domestic wing, and larger windows in the original structure. The roof is fully intact. In the centre is a Tudor courtyard, the Conduit Court, which contains a yew tree, reputedly planted by Lady Anne in 1659.