The north wall, built of rubble limestone and standing to a height of around 2.7 metres, has been absorbed into the boundary of the graveyard it once served, so that the distinction between ecclesiastical ruin and enclosure wall has effectively dissolved. The south wall has fared worse; only its footings remain visible at ground level. No doorways, windows, or decorative carving can be made out, and the graveyard itself is heavily overgrown with scrub.

The church was a rectangular structure, roughly 16.5 metres from east to west and 5.6 metres from north to south, with walls approximately 0.9 metres thick. Those proportions, recorded independently by Comerford in 1883 as 40 feet by 18 feet, are consistent with a modest rural parish church of the medieval period. The Annals of the Four Masters, the great seventeenth-century chronicle compiled from earlier Irish sources, mention Clonyhurk under the year 1387, which places the church firmly in the late medieval landscape of Offaly. Immediately to the south of the graveyard stands a tower house, the kind of fortified residential tower that minor Gaelic and Anglo-Norman lords built across Ireland between roughly the fourteenth and seventeenth centuries; the two structures together suggest a settlement of some local consequence, even if very little of it now reads clearly in the landscape. The headstones visible among the overgrowth date from the eighteenth and nineteenth centuries, indicating that burial continued here long after the church itself fell out of use.