A cashel is a type of early medieval enclosure defined by a circular drystone wall, and the buildings found inside them range from the clearly functional to the ambiguous. This one falls firmly into the latter category. Its interior measures roughly 2.25 metres north to south and 2 metres east to west, which is to say barely the footprint of a modest garden shed, yet its walls are substantial: double-faced drystone construction about 1.3 metres wide and surviving to between 1.4 and 1.6 metres in height. The thickness of the walls relative to the interior space is notable, and the absence of any discernible doorway makes the original purpose of the structure difficult to read.

The southern wall of the structure has been absorbed into a later drystone wall, one that branches off from the cashel's own perimeter wall to the east and also continues southward from the structure's south-west corner. This kind of secondary modification is common in the Irish landscape, where earlier stonework was frequently reused or extended by later farmers working the same ground across entirely different centuries. The earlier structure became, in effect, a convenient anchor point for a field boundary or enclosure built long after the cashel itself had fallen out of whatever use it once served. What the original building was, whether a small dwelling, a storage cell, or something with a more specific ritual or agricultural function, remains an open question.