The castle’s unusual orientation places each of its angles roughly at compass points, though for practical purposes the northeast façade is considered the north wall. Its most distinctive features are the projecting towers at the western and eastern angles; the northeast tower houses the remnants of an original stairwell, whilst the southwest tower contains the garderobes. Though visitors today enter through a modern doorway in the east angle tower, the original entrance lies just south of it in the east wall, leading to a barrel-vaulted chamber and the stairwell beyond.

The interior reveals both medieval craftsmanship and later modifications across its three main levels. The original entrance features two-centred arches built from small greywacke slabs, with a murder hole positioned strategically just inside, though this defensive feature is now blocked by modern alterations. These later changes include the removal of the lower stone staircase up to the first floor, replaced by wooden steps, and the installation of modern fireplaces in the southwest angle. The castle’s sanitary arrangements show typical medieval practicality; the first-floor garderobe consists of a simple hole in the floor, whilst the one above it features a stone roof built in a beehive fashion. Throughout the structure, window openings pierce the walls at various levels, with the ground floor retaining its original double-splayed opes and the second floor featuring unusual embrasures with concave sides.

At roof level, the castle displays sophisticated defensive architecture with stepped battlements and stone steps leading to the upper levels of the corner towers, similar to those found at nearby Termonfeckin Castle. The wall-walk stones project slightly beyond the castle walls by 5 to 10 centimetres, incorporating drainage holes at the parapet base. The southwest angle tower features an intriguing hole at wall-walk level that connects to a spout on the tower’s south side, possibly serving as a makeshift garderobe for sentries. Traces of the original bawn wall remain visible in the modern farm buildings, with the north wall fronting the roadway and the western portion connecting to the tower house’s northwest angle. Archaeological evidence suggests the bawn wall originally enclosed the castle on all sides, joining at both the northwest and southeast angles, with the eastern boundary now marked by a modern wall.