Built from roughly coursed rubble, greywacke and limestone blocks, the structure originally featured four corner towers, though the northeast tower and much of the eastern wall have since collapsed. The main entrance, located at the base of the southeast angle tower, showcases some of the castle’s finest dressed stonework; hard grey sandstone blocks frame the doorway with seventeen carefully placed stones crowned by a central keystone.

The interior reveals sophisticated defensive and domestic arrangements typical of tower houses from this period. The ground floor houses an impressive barrel-vaulted chamber running east to west, accessed through the southeast tower’s entrance which leads first into a small antechamber with a beehive corbelled roof. A mural staircase, now partially blocked, once provided access from the south wall to the first floor, winding through the southwest angle tower. The northwest tower presents an intriguing architectural puzzle; its ground floor could only be accessed from above, suggesting a trapdoor system, whilst evidence of a spiral staircase at first floor level indicates careful consideration of internal circulation and defence.

Each tower served distinct purposes within the castle’s defensive scheme. The southeast tower never rose above first floor level, whilst the northwest tower extended two storeys above ground level, featuring simple rectangular window slits framed with limestone jambs and lintels. Corbelled roofs constructed from large stone slabs cap each floor level of this tower. Five corbels projecting from the western wall between the south wall and northwest tower support horizontal limestone slabs, creating additional wall thickness; a technique typically used for mural passages or wall walks, though no such features remain here. Historical illustrations by Wright from 1758 show the tower house accompanied by a bawn wall and gateway, but these defensive outer works have left no surface traces today.