It is not signposted or celebrated. It simply stands there, in red sandstone rubble, patched where it needed patching, preserved by a nineteenth-century farmer as what the Ordnance Survey Letters frankly called a "curiosity".

The place-name tells most of what is known about the original building. Killurney derives from the Irish Cill Urnaighe, meaning the Church of Prayer, or in Latin, Cella Orationis, and the settlement took its name from the church rather than the other way around. By the time the OS Letters were compiled, the structure had already vanished from the orchard belonging to a farmer named Thomas Donnell, leaving only this portion of what appears to be the west gable. The wall was deliberately maintained, repaired in places to keep it standing, though not restored to any architectural completeness. No doorways, windows, or other cut features remain. What does remain is the base-batter, a slightly projecting angled course at the foot of the wall designed to shed water and stabilise the base, rising about a metre before the main face begins. Above that batter, concentrated in the western face, are larger boulders with visible quartz inclusions set into the sandstone rubble, a small material detail that gives the wall an older, rougher character than its tidy preservation might suggest.

Local tradition holds that a graveyard once lay in the field immediately to the south of the garden. In prolonged dry weather, when the ground loses moisture unevenly, faint traces of former burial plots are said to become visible as cropmarks or soil shadows, the kind of fleeting evidence that appears briefly and then disappears again with the next rain.