 A short distance to the south-west of the castle is a barracks block and associated storage buildings, constructed soon after 1718.Built to replace the original barrack accommodation within the castle when it was redeveloped to convert it into a magazine, it has changed little externally in the last 300 years.It is a rare surviving example of an 18th-century building of this type and was one of the first distinct barracks to be built in England.