What remains is a roughly quadrangular shape, measuring approximately 22.5 metres on its northwest to southeast axis and 17.5 metres across, defined by a scarp on its southern and western sides and faint traces of what may once have been a fosse, a defensive ditch, at the southwest corner. Beyond those remnants, nothing of any original enclosing wall or bank survives.

The placename Ceathrú An Teampaill translates roughly as the quarter of the church, hinting at a layered ecclesiastical and perhaps earlier presence in this corner of the island. Mac Domhnaill, writing in the Topographical Files of the National Museum of Ireland, described the site as a probable site of an ancient fort, which places it within the broad tradition of early Irish enclosure monuments, though the evidence on the ground is now too worn to say much more with confidence. Whether it preceded or postdated any religious activity in the area is not clear, and the site resists easy categorisation. It occupies a coastal position that would have made sense strategically, overlooking water to the north, but the surviving archaeology offers little beyond its outline dimensions and a suggestion of deliberate construction.