This rectangular two-storey fortification, built from roughly coursed limestone rubble, once served as a stronghold for the local gentry. Historical records from the Civil Survey of 1654-6 describe it as an ‘old ruined castle wanting repair’, suggesting it had already fallen into disrepair by the mid-17th century. The survey also identifies one Cormuck mcEgan as the proprietor in 1640, providing a tantalising glimpse into the castle’s ownership during the tumultuous period before Cromwell’s conquest of Ireland.

Today, visitors will find a partially collapsed structure that nonetheless hints at its former defensive capabilities. The building featured a crenellated wall-walk along its upper level, allowing defenders to patrol the perimeter whilst protected by the battlements. The walls display the characteristic base-batter common to Irish tower houses; this sloping foundation helped deflect projectiles and made the structure more difficult to undermine during sieges. Whilst the north wall and northern section of the west wall have completely collapsed, the remaining masonry reveals interesting architectural details, including areas of fine rendering on the external face near the southeast corner.

Archaeological evidence suggests the castle may have been part of a larger defensive complex. Wall footings protruding from the base of the southwest angle appear to be remnants of a bawn wall, which would have enclosed a courtyard area for livestock and provided an outer line of defence. The peculiar rendering at the southeast corner has led archaeologists to speculate that a wooden fore-building, possibly housing the main entrance stairs, was once attached at this point. Such timber structures were common additions to stone castles, though they rarely survive the centuries.