What makes this site quietly puzzling is not what remains but what has vanished. By the time the Ordnance Survey revised its six-inch mapping in 1904, a church that had been clearly marked as an upstanding structure in the 1840 edition had simply disappeared. No ruins, no roofless shell, just a graveyard with a gap at its centre where a building used to be.

Samuel Lewis, writing in 1837, noted the ruins of a church at Borrisoleigh, which suggests the building was already in decline by the early nineteenth century. The 1840 map, however, records it as a standing structure, so whatever remained must have been cleared or collapsed in the decades that followed. The deeper history of the site is harder to pin down. A 1302 taxation of the Diocese of Cashel records revenue collected from the "burgage of Leth", a burgage being a type of town plot associated with medieval settlement under English colonial administration, but whether this connects directly to a church on this spot is uncertain. There is no firm evidence that the site was in ecclesiastical use before 1700, leaving the question of its origins genuinely open.