What survives today is the northwest corner of a tower, rising two storeys high and measuring 5.6 metres east to west and 2.6 metres north to south. A large chunk of masonry that once formed part of the structure now lies on the ground immediately southeast of the standing portion. These remnants sit towards the eastern end of a rectangular, grass-covered platform roughly 30 by 25 metres, which likely marks the footprint of the original bawn, or defensive courtyard, that would have surrounded the tower house.

The tower itself is constructed from roughly coursed limestone bound with lime mortar, its walls showing a gentle inward slope or batter typical of medieval fortifications, though most of the dressed corner stones have long since vanished. The ground floor features the remains of a window in the west wall, with only its northern side still intact, incorporating part of a splayed gun loop. At first floor level, you can spot a mural chamber built into the corner, though its inner wall has collapsed, and the remnants of what was once a large window embrasure in the north wall, of which only the western side remains. About three metres above ground level on the exterior, a horizontal slit measuring 0.8 by 0.25 metres probably served as the outlet for a garderobe chute; a rather unglamorous but essential feature of castle life.

Two nineteenth-century farm buildings immediately east of the platform have become an inadvertent museum of sorts, containing carved stones salvaged from the tower including a sheela-na-gig, that curious female figure found on medieval buildings across Ireland. An illustration by the antiquarian Grose from 1791 shows the castle much as it appears today, though with the fallen masonry block still standing upright. He noted that the castle had already been plundered for building stone during construction of a nearby house, a common fate for these abandoned strongholds. Local tradition holds that this was a MacDonagh castle, one of many fortified houses that once dotted the Sligo landscape during the turbulent centuries when such defences were a necessity rather than a luxury.