Percy's Tower and similar extension to left are by Rickman.

Curtain walls to Rose Castle. Early C14. Large blocks of coursed red sandstone on chamfered plinth to east and south with north-east wall on segmental vaulted arches. Low wall, formerly surrounding Rose Castle but now interrupted by outbuildings in south-west angle, reduced in height in the early C19 with C19 coping. Remains of a watch tower on the north-east wall.

Gateway and flanking buildings. Early C16 for Bishop Kite, with mid C18 alterations. Large blocks of red sandstone rubble. Gateway through curtain walls, with remains of Water Tower to left and lodge to right. Large segmental arch with C16 carved stone panel, of rose in quatrefoil and corner shields, above. Pedestrian pointed arch to right. Battlemented parapet. Former tower to left has blocked chamfered-surround entrance wich originally gave access to an outer watch tower built over the moat. Wall reduced in height and now gabled. Twin-gabled building to rear is an C18 gardener's storehouse with sandstone slate roofs. Lodge to right is mostly demolished but its outer walls form part of the curtain wall with an angle projection. Probably replaced an earlier drawbridge gatetower referred to in 1479.

Former Dovecote. Dated 1700 over entrance. Large blocks of coursed red sandstone (probably from part of the medieval castle) on squared plinth with flush quoins, gable string course; sandstone slate roof with coped gables and kneelers. Small, almost square, 1 1/2 storeys. Chamfered-surround entrance in gable wall, with dated lintel. Small oculi above. Small square opening in opposite gable. Interior has its complete boulins on 3 sides. Mention of a dovecote in a parliamentary survey of 1649 may indicate that the building is earlier than the date. Other references refer to the dovecote as having been a watch tower. (Listed Building Reports)

Supposedly built on site of motte and bailey castle, although Gatehouse is uncertain as to the evidence for this suggestion.