Sixty years earlier, a surveyor recording it for the Ordnance Survey could still read its walls well enough to take measurements and trace the ghost of a doorway in a breach along the south wall, but the building was clearly losing its battle with time well before that final collapse. What makes the site quietly arresting today is not ruin as spectacle but ruin as palimpsest: a graveyard still in use, a holy well close by, and the remnants of Tullabracky Castle some 180 metres to the south, all gathered within a small area of County Limerick as if the landscape had been reluctant to let any single era go.

The church's documented history stretches back to at least 1185, when the place appears as Tullachbracc in a charter of Magio, and it surfaces again in records from 1201, 1276, and 1302 under a variety of spellings that reflect the shifting conventions of medieval Latin and Anglo-Norman administration. It was dedicated to St Molon, with the dedication formally recorded on 5th May 1410. The scholar Thomas Johnson Westropp, writing in 1904 to 1905, noted that in 1346 one John de Bosworth held the position of parson and prebend, a prebend being a cathedral or collegiate church stipend attached to a particular parish, and that John Eyterward succeeded to the role in 1389. The parish lay within the territory known as Coshmagh and Small County, and the placename itself was recorded by John O'Donovan as Tulla braice, meaning it fell within lands historically designated as Bishopsland. A holy well near the ruins is recorded under the name Tober Mullana, or Blunny's Well. A newer Catholic church replaced the old structure in 1819, though whether it served continuity or simply convenience, the medieval building continued to deteriorate beside it.

The ruins sit in the north-west quadrant of the graveyard, which remains an active burial ground. The 1840 Ordnance Survey account described walls still standing to around nine feet, but that description should be treated as historical record rather than expectation; by 1901, the structure had been very nearly flattened. Visitors exploring the site should look for the holy well in the vicinity of the church, and note the castle remains to the south, which share the same cluster of monument references in the national record. The landscape here is quietly layered, and the proximity of castle, church, and well within such a compact area says something about how medieval communities organised sacred and secular space around one another.