Archbishop Leighton's House, Newbattle Abbey

Archbishop Leighton's House at Newbattle Abbey has a core dating from the 17th century, with later alterations. It is a two-storey, three-bay rectangular house featuring an 18th-century polygonal stair tower and 19th-century additions at the rear. The exterior is constructed of sandstone rubble with ashlar dressings, while the later rear additions are made of tooled, coursed, and snecked sandstone rubble.

The west (front) elevation is symmetrical with three bays. It has a central doorway with a replacement timber door and a two-pane fanlight above, flanked by single windows. A catslide roof is positioned above the first-floor window, which is centered above the door, with coped, gabled dormer windows on either side breaking the eaves.

On the north elevation, there are two blocked windows that indicate previous floor levels, with a bottle-nosed cill marking the original first-floor level, possibly the top tread of a now-demolished forestair. There is also a small window at the first floor to the right. A later wing on this side features a ground-floor mullioned window and a catslide dormer window above.

The east (rear) elevation showcases a central projecting stair tower. The ground-floor window is blocked, but there is a single window at the first floor and in the left return. To the left, there is a single-storey canted windowed extension, and to the right, an advanced two-storey extension with a ground-floor window and steps leading up to a rear door in the right return. This door is a replacement timber door with a three-pane fanlight and a small window above it at the eaves.

The south elevation has two blocked windows indicating previous ground and first-floor levels, along with two side-hung windows at the first floor. There is a 19th-century advanced ashlar canted tripartite window to the right.

The house predominantly features eight-pane sash and case windows. The roof is gabled and covered in slate, with a lead ridge, raised skews, and two corniced gable apex stacks. There are two octagonal cans on the north gable and two circular cans on the south gable. The rear extension has a piended slate roof with a corniced ridge stack and two circular cans. The canted window has a catslide and piended slate roof, while the stair tower is topped with a swept polygonal slate roof. The property also includes cast-iron rainwater goods and decorative hoppers.

The interior has been remodelled, with partial visibility noted in 1999.