A fine L-shaped tower house on the south coast of Dumfries and Galloway, Carsluith Castle overlooks Wigtown Bay, a half-mile (1 km) east southeast of the settlement of Carsluith and 2¾ miles (4.5 km) south southeast of Creetown. Although roofless, the external walls are complete. The castle most likely dates from the 15th C. and was built for John Cairns of Orchardton. It passed to Richard Brown by marriage in the early 16th C. and it was the Brown family who added a stair tower in 1568. In 1579, John Brown was implicated in the murder of MacCulloch of Barholm while, in 1605, Gilbert Brown, the last Roman Catholic abbot of Sweetheart, was imprisoned although later released by King James VI. The last of the Browns of Carsluith emigrated to India in 1748 and the castle was abandoned.
The castle came into the care of the State in 1913. It is now A-listed and managed by Historic Environment Scotland.