Located in the most southerly part of Scotland, on the Machars peninsula adjacent to the Solway Firth, Galloway House and its policies represent one of the most significant and valuable designed landscapes in the south west of Scotland. It lies on the southern edge of the village of Garlieston, only 15 miles south off the A75 linking the M74/M6 to the Northern Ireland ferry ports of Stranraer and Cairnryan.
The landscape comprises of approximately 720 acres, 70 acres of which are owned by the Trust. The pattern of woodlands within the landscape, particularly those on the shoulder of Powton Hill and Cruggleton Woods in the south, contributes greatly to the surrounding landscape, as do the boundary walls of the estate. An important feature of the policies in the 1880s was the walk from Garlieston along the shoreline to Cruggleton Lodge taking in the magnificent views of the cliffs at the south eastern edge of the shore.
Today, although fragmented, the designed landscape is still clearly defined by the policy walls. Galloway House, now privately owned and occupied, remains at its heart.