Roughly square in plan and only about two metres across, it presses up against the outer face of the cashel, the two structures sharing neither wall nor purpose, yet clearly positioned in deliberate relation to one another.

A cashel is a type of early medieval stone ringfort, a circular enclosure bounded by a dry-stone wall, and this hut appears to have been built as a secondary structure against its exterior. The hut's own walls survive to a height of up to 1.1 metres and are about 0.6 metres thick, proportions that speak to careful, if modest, construction. Six lintels, flat stones laid across the top, criss-cross what remains of the roof, a roofing method that would have been both practical and relatively straightforward to assemble without mortar or timber. The entrance, facing inward towards the cashel at just 0.55 metres wide, is partly blocked, and the interior is filled with rubble, which makes it difficult to say much about how the space was originally used. The orientation of the doorway is suggestive, though; whoever used this hut was positioned to access, or at least face, the main enclosure. Whether it served as storage, a shelter for an animal, or something connected to the activities inside the cashel, the structure raises more questions than the surviving fabric can answer.