The south and north walls stand noticeably higher on their eastern sides than their western, simply because the builders followed the fall of the land rather than level it. The interior is densely overgrown, the upper east gable smothered in ivy, and beneath its central mullioned and transomed window, a wrought iron gate marks the entrance to a burial crypt cut into the base of the wall. The west doorway is perhaps the most quietly revealing detail: its lintel is not a purpose-cut stone but a reused head from a two-light mullioned window, the kind of opening typical of late-medieval ecclesiastical building, pressed into secondary service as a simple doorstep to the outside world.

The church is most probably the remains of Dromdowney parish church, though its precise parish identity has long been slightly ambiguous. A six-inch Ordnance Survey map from 1842 places the Copsetown townland just outside the northern boundary of Dromdowney, within Ballyclogh parish instead. What is less ambiguous is the building's early decline: Dromdowney church was already described as being in ruins in 1615. The crypt beneath the east end was made by the local landowner, Colonel Beare, who was buried there in 1850, and it is thought he also undertook some rebuilding of the structure around that time, which may account for the massive boulders visible in the walling at the west end. Adding a further layer of dispersal to the site's story, local tradition recorded in 1932 holds that stones from the church were taken and used in the construction of a nearby railway bridge.