Remains of Heaton Castle Circa 30 Yards North West of Farmhouse

Heaton Castle is a late medieval vaulted defensible building located approximately 30 yards northwest of a farmhouse in Cornhill-on-Tweed. Constructed from squared stone and random rubble, it features a Welsh slate roof and measures about 70 feet by 25 feet, with two storeys.

The long west side of the castle has stone steps leading to a first-floor doorway. Some of these steps show signs of wear, while others have been renewed, though the wall beneath them is original. Beneath the steps, there is a 16th or 17th-century doorway with an alternating-block surround and rounded edges. To the left of the steps, there is a projection that extends about 8 feet from the wall, featuring a chamfered plinth and medieval masonry, appearing solid. Adjacent to this is another section that also projects but to a lesser extent, which has a chamfered plinth and a window with a steeply sloping sill. This left section contains a later window and an original slit window. The first floor has 19th-century windows set within older masonry.

On the east side, the castle has two buttresses with offsets and two blocked slit windows. The first floor on this side has been rebuilt.

Inside, the castle features a high round tunnel vault that rises from about 3 feet above the ground. The walls are typically around 3 feet 6 inches thick, with greater thickness in areas where there are projections. The south gable has been largely rebuilt.