The ruins at Ballymore are not visible at ground level, which places them in an unusual category even among Ireland's many vanished ecclesiastical sites. What survives, or rather what once survived long enough to be recorded, is a building of modest but legible proportions, swallowed by centuries of agricultural levelling and land drainage.

The most detailed description we have comes from the Ordnance Survey letters, a remarkable nineteenth-century project in which scholars and correspondents travelled Ireland documenting local antiquities, place names, and oral traditions. The account recorded in O'Flanagan's 1930 compilation of those letters captures the church at a moment when it was already nearly gone. Local people still called it Ballymore Church, and enough remained to be measured: roughly 16.75 metres in length and 9.1 metres in breadth, with walls about 1.27 metres thick, orientated north to south. The south gable was described as in tolerable preservation, retaining part of a window whose surviving east jamb was cut from chiselled limestone, a detail suggesting some care in the original construction. The north gable and the side walls had by that point collapsed nearly to their foundations. A castle lies around 700 metres to the north-north-west, hinting that this was once a locality with both secular and religious infrastructure, even if little of either is now readable in the landscape.