Closeburn Castle

Closeburn Castle is a late 14th century rectangular-plan tower house that has undergone mostly 18th and 19th century alterations and low additions. There are outbuildings to the west. The tower house features three storeys above a vaulted basement, with small-paned, irregularly spaced windows that have mostly been altered, and segmental heads. It is constructed of coursed rubble with ashlar dressings, topped with a gabled stone slab roof that has a ball finial and ridge stack, all enclosed by a parapet that was crenellated in the 19th century. A cap house is situated over the north wallhead.

Inside, a yett survives along with an iron-studded door. There is a wheel stair at the north, and the interior now consists of two rooms on each floor. The north ground floor room features a vaulted ceiling with plain plaster ribs and masks. A bedroom cupboard on the upper floor has a re-set plaster mask over the door, and the attic is also vaulted.

The castle has additions, including a roofed forestair made of mostly red ashlar at the west leading to the original door, and a castellated porch added after 1856 at the north. This porch has a segmental-arched, east-facing two-leaf door with side lights, and a recessed piended bay adjoining it with a segmental-arched window (also east-facing) flanked by blind square openings that have margins linked with an eaves band. The rear elevation is asymmetrical, with the kitchen linked to the outbuildings. The structure features corniced octagonal or diamond flues and has a slate roof.