It is a modest thing to look at, but its proportions and position suggest it may be the remains of a hut site, a domestic structure that once occupied the interior of the enclosure.

Ringforts, known in Irish as raths or liosanna depending on regional convention, were enclosed farmsteads typically dating from the early medieval period, roughly the fifth to the twelfth centuries. They were built by single farming families and defined by one or more circular earthen banks, with any internal structures, houses, animal pens, or storage buildings, set within the protected space. The survival of internal features is relatively uncommon, since centuries of agricultural activity tend to flatten anything that was not the main enclosing bank. At Knockroe, the L-shaped feature has persisted in the south-western corner of the fort, its right-angled form hinting at deliberate construction rather than natural erosion. Whether it represents the foundation line of a small dwelling, a lean-to structure against the inner face of the bank, or something else entirely, is not fully resolved, and the tentative language used to describe it reflects that genuine uncertainty.