This rectangular two-storey stronghold, measuring roughly 15.4 metres north to south and 8.2 metres east to west, was already described as an ‘old ruined castle wanting repair’ when surveyed in the 1650s. The Civil Survey of that period records one Cormuck mcEgan as its proprietor in 1640, though little else is known about the castle’s medieval inhabitants.

Built from roughly coursed limestone rubble with walls 1.2 metres thick, the castle shows signs of considerable modification over its lifetime. The original entrance sat at first-floor level in the southeast corner, accessed via what may have been a wooden fore-building; the fine rendering still visible on the external wall at this point suggests such a structure once existed. Later alterations included the insertion of a ground-floor doorway in the centre of the south wall, making the building more accessible but less defensible. The northern wall and part of the western wall have since collapsed, though remnants of what appears to be a destroyed bawn wall can still be traced protruding from the southwest angle of the building.

Despite its ruinous state, several architectural details remain visible. The first floor preserves a partially blocked pointed single-light window with window seats in the south wall, whilst another flat-headed window survives at the northern end of the west wall. Stone corbels that once supported wooden floors still project from the western wall, and faint traces of crenellations at the southwest corner hint at the defensive wall-walk that once crowned the structure. A crease line visible in the southwest angle shows where the roof was fitted against the internal walls, offering a glimpse of how this modest fortification was constructed and adapted through the centuries.