It is easy to miss entirely. The bank, between one and three metres wide and only about sixty centimetres high, encloses a rectangular interior measuring just 3.2 metres east to west and 2.3 metres north to south, with occasional courses of inner stone facing still visible beneath the turf. What the structure was, and who built it, is not recorded.

Its proximity to a holy well is the most suggestive detail. Holy wells in Ireland were frequently associated with early Christian activity, and small ancillary structures near such sites could serve a range of purposes, from the cells of hermits or penitents to simple shelters used by those visiting the well for devotional or healing purposes. The relationship between this particular building and the well beside it remains speculative, but the pairing is a familiar one in the Irish landscape, where the sacred and the functional were rarely kept far apart. Abbey Hill itself suggests an area with some ecclesiastical history, though the structure on its slope offers no firm answer about its own origins or use.