The rectangular tower, measuring roughly 12.5 metres north to south and 9.2 metres east to west, occupies a strategic position about 70 metres from the river, with the ground sloping gently upwards to the north. Today, dense gorse and bushes have overtaken much of the surrounding area, whilst heavy ivy cloaks the surviving walls, particularly on the eastern side.

What remains of the castle reveals fascinating architectural details from its late 16th or early 17th century reconstruction. The structure retains its eastern, northern, and partial western walls up to the first floor level, though only the northwest corner reaches the second storey. The ground floor chamber likely had its entrance through the now vanished southern wall, with spiral stairs tucked into the southwest corner. Two narrow slit windows survive in the centres of the north and east walls, their embrasures covered by flat segmental vaults constructed using wicker centring. The first floor features a pointed vault, also wicker centred, though only its northern end survives today, along with a single slit window embrasure in the north wall.

The castle's most intriguing features are the angled recesses on its exterior walls; two on the north wall and a partial one on the west; which appear designed for downward angled gun loops, though the openings themselves are no longer evident. These defensive elements, along with the plank centred embrasure arches, point to a reconstruction sometime after 1583, when the Desmond Survey curiously described a round structure at this location. By 1840, the castle was already in much the same ruinous state as today, though the main vault was still intact at that time. The surviving gun loops and defensive features suggest this was once a formidable stronghold, adapted for early modern warfare with firearms rather than traditional medieval weaponry.