The two structures, one ancient and roofless, the other still in active use as a burial ground, have grown into each other over centuries, so that the old masonry now functions as part of the enclosure rather than as a monument kept at a respectful distance from it.

The church ruins, recorded under the reference LI006-048001-, are the older presence here, though the graveyard's surrounding wall dates to after 1700. That wall defines a roughly rectangular plot, approximately 26 metres north to south and 34 metres east to west, with an entrance gate at the southern end. The arrangement is common enough in rural Ireland, where early Christian and medieval ecclesiastical sites were frequently re-used as burial grounds long after the original buildings fell out of liturgical use, the sanctity of the ground outlasting the institution that consecrated it. What makes Killeenagarriff quietly interesting is the degree to which the medieval fabric has been absorbed into the later landscape rather than preserved apart from it.

The site is enclosed by its post-1700 stone wall, so the entrance gate at the south is the practical way in. Once inside, it is worth approaching the northern boundary to examine where the medieval church masonry meets, and in places merges with, the later walling. Visitors with an interest in ecclesiastical archaeology should look for the distinction between the two phases of construction, the rougher, older stonework of the church fabric against the more regular coursing of the enclosure wall built some centuries later. The site record was compiled by Caimin O'Brien and uploaded in July 2019, and the National Monuments Service reference provides a starting point for anyone wanting to read further into the structural details before visiting.