By 1615, the building was recorded as a ruin, meaning its collapse belongs not to living memory but to some earlier disruption, one that left no clear explanation in the surviving record.

The church was the parish church of Magourney, a place-name that survives as a reminder of an older territorial and ecclesiastical geography now largely obscured. The 1615 date comes from Brady's work on the Irish church, suggesting the ruin was noted during the kinds of ecclesiastical surveys that followed the upheavals of the Reformation, when clergy and administrators were attempting to account for what parishes existed, what churches served them, and which of those churches were still standing. Many were not. The pattern was common across Munster: medieval parish churches that had fallen into disuse or disrepair, sometimes through neglect, sometimes through deliberate abandonment, occasionally through violence. In this case, the record does not say which.

What remains today sits inside a graveyard, as is common with sites of this kind, where continuous burial over centuries has preserved a plot of ground even when the building it once served has vanished almost entirely. The graveyard itself, designated separately in the archaeological record, gives the church ruins a context and a boundary, even if the stones of the church have long since settled into the ground.