Balhousie Castle is the most historic castles which are located in Perth, Scotland though its origins are believed to go back a further three hundred years. It originally served as the seat of the Earls of Kinnoull and stood within a walled enclosure containing subsidiary buildings, orchards etc., on a terrace overlooking the North Inch.
After falling into neglect in the early 19th century, the Castle was 'restored' and extensively remodeled on a larger scale in 1862-63 in the Baronial style by the architect David Smart.
In January 2009 the Regimental Trustees bought Balhousie Castle.
In 1962, it became a Regimental Headquarters and Museum of the Black Watch and from 1739 to till now, it latter displays the history of the regiment.