Two flanking towers add to its defensive character: a two-storey circular tower at the northeast corner with a diameter of about 2.5 metres, and a three-storey rectangular tower at the southwest corner measuring roughly 4 metres by 3.8 metres. The castle has undergone several renovations, including work in the early 19th and 20th centuries, and more recently has been converted into a private residence. Originally the stronghold of the Nagle family, the castle was forfeited by them in the late 17th century.

The original entrance through a pointed arch doorway in the centre of the east wall has been replaced by an inserted door at the east end of the north wall, with the former entrance now serving as a window. The ground floor chamber, extensively renovated over the years, was reportedly once divided by a crossing wall running east to west. Access between floors is achieved through a combination of wooden stairs inserted into a window embrasure in the south wall and a network of mural stairs within the thick walls. The circular northeast tower and rectangular southwest tower are accessed through doorways on the first floor, with the southwest tower containing its own narrow spiral staircase connecting all its levels, including a lower chamber equipped with gunloops for defence.

The upper floors reveal more of the castle’s original medieval character, particularly in the second-floor windows; the east wall features a rectangular light divided by three mullions with a hood moulding, whilst the south wall has a similar two-light window. The walls contain several mural passages, including one leading to a garderobe chamber, demonstrating the sophisticated planning typical of tower houses of this period. The third floor of the main tower and the upper chamber of the southwest flanking tower both retain original slit windows alongside later insertions, with the southwest tower even featuring a fireplace in its southeast corner. A graveyard lies about 60 metres to the east, adding to the historical atmosphere of this well-preserved example of an Irish tower house.