This four-storey limestone structure measures 8.4 metres north to south and 8.1 metres east to west, rising to an impressive height of 15.3 metres. Built from uncoursed rubble with dressed quoins visible in the northwest corner, the tower shows clear defensive features typical of its era. The north and west walls display a distinctive batter, or sloped base, which blocks two arrow loops and what appears to be an original entrance in the north wall.

The castle’s current main entrance sits at the northern end of the east wall, complete with a murder hole above; a sobering reminder of the building’s defensive purpose. This doorway leads into a vaulted chamber measuring 4.5 by 3.5 metres, topped with an elegant pointed vault and featuring several built-in wall cupboards. The internal layout reveals sophisticated medieval planning, with stairs built into the east wall that double back through a lintelled corridor at first floor level, illuminated by narrow rectangular slits. The first floor showcases beautiful ogee-headed windows, a Gothic architectural detail that speaks to the building’s status, whilst similar windows light the stairway ascending to the third floor, which boasts a stone-arched fireplace.

Later modifications have added an intriguing layer to the castle’s history; a dovecote has been incorporated into the structure, completely blocking access to the second floor and requiring entry to the first floor’s main chamber through a hole broken into the lintelled corridor. Despite these alterations, much of the original defensive architecture remains intact, including the rectangular splayed loops in the north wall and the stairs in the south wall that once provided access to the parapet. The tower stands as a fascinating blend of medieval military architecture and later agricultural adaptation, offering visitors a tangible connection to centuries of Irish history.