The enclosure at Ballinagee sits on a south-facing mountain slope, its perimeter wall still standing to around a metre in height and nearly a metre and a half wide, dimensions that speak to a deliberate, considered construction rather than a casual field boundary.

Ecclesiastical enclosures of this kind are the footprints of early Irish Christianity, typically associated with monastic or church sites established between the early medieval period and the twelfth century. What makes Ballinagee quietly unusual is its plan: quadrangular rather than the more commonly encountered circular or oval form that characterises many early Irish religious enclosures. The main boundary is reinforced by an internal ditch running along the southern side and an external ditch on the north-east, suggesting the enclosure boundary was understood as something more than a simple property marker, perhaps a ritual boundary separating sacred ground from the world outside. A stone-lined entrance, a metre wide, opens to the east, an orientation consistent with early Christian practice across Ireland. The site dimensions, approximately forty metres by thirty metres, place it in the modest range, neither a grand monastic foundation nor a minor wayside chapel, but something in between.