What makes the site quietly arresting is its plan. By 1842, when the Ordnance Survey recorded it on their six-inch map under the name "Stookeen R.C. Chapel (in Ruins)", the building was already gone to ruin, and the surveyors traced a cruciform outline, suggesting a church that had once extended in at least four directions from a central crossing point.

What survives today is essentially the southern arm of that larger structure, measuring just over six metres internally on each axis, with walls roughly three-quarters of a metre thick. The masonry carries some architectural ambition: pilasters, narrow vertical projections of stonework, flank both the pointed window in the south gable and the arched door opening in the west wall, lending the ruin a more formal character than a simple rural chapel might be expected to have. A string course, a horizontal projecting band of stone running along the exterior at around chest height, marks the elevation in a way that echoes more elaborate church design. Traces of the east-west section of the building also survive, where engaged columns, columns bonded into the wall rather than freestanding, formed the frame of a doorway. Together, these details point to a church that was probably T-shaped in layout, a form sometimes used for Catholic worship in Ireland during the penal and post-penal period, when congregations gathered in the arms of the building around a central altar.

The ruins sit directly at the roadside, visible without any particular effort to seek them out, though the surrounding vegetation and the fragmentary nature of the standing walls mean the full geometry of the plan is easier to read with the 1842 map in mind than from the ground alone.