By the time the Ordnance Survey mapped the area in 1839, it was already marked as a ruin; by the revised edition of 1899 to 1902, the cartographers had quietly downgraded it to a mere "site of". Today it does not appear on satellite imagery at all, absorbed back into the agricultural landscape without ceremony.

The church was dedicated to St Blaan, a 7th-century figure whose main sphere of activity was Scotland, where he became the first bishop of the See of Dunblane. How his name came to be attached to a small Kilkenny settlement is one of those quietly unanswerable questions of early Irish ecclesiastical geography, where dedications travelled in unexpected directions and the reasoning was rarely written down. The historian William Carrigan, writing in 1905, noted that the building was of modest proportions and that even then its walls had collapsed into a heap of fallen masonry and weeds, making precise measurement impossible. What he could make out was that the doorway had been set into the west gable, a common arrangement in early Irish church architecture. He found no trace of a graveyard, no graves, and no visible boundary that might once have defined one. The 1839 Ordnance Survey map recorded the footprint as roughly 14 metres on its longer axis and 8 metres across, a small rectangle oriented northeast to southwest. About 250 metres to the east, a tower house still stands, a reminder that Kilbline was once a functioning medieval settlement rather than an empty field with an absent church at its centre.

There is, in practical terms, nothing to see. The ground has been reclaimed, the masonry is buried or scattered, and the site leaves no impression on the modern landscape. Its interest now is almost entirely documentary, a place that can be located on old maps and traced through a handful of historical references, but that has otherwise slipped out of the visible world entirely.