Around Kilfenora Cathedral, the layout of a curving street to the south-west, a townland boundary to the north-west, and a laneway to the north-east together trace what appears to be the outline of an early ecclesiastical enclosure. An enclosure of this kind, typically a roughly circular or oval boundary demarcating the sacred precinct of an early medieval church site, often survives not as a visible wall or ditch but as a ghost pressed into later geography: a bend in a road, a field edge, a boundary line that follows an older logic than the one it now serves.

The observation was drawn together by Leo Swan in 1991, who noted that these features around the cathedral collectively suggest the original perimeter of such an enclosure. Swan also pointed out a partly natural rocky platform to the north-west of the church as a possible inner enclosure, which would imply a more complex, layered sacred space than the visible remains alone might suggest. The site sits on a gentle north-facing slope amid undulating pasture, unremarkable ground that gives little away. Kilfenora Cathedral itself is a well-known early Christian and medieval site in the Burren region of County Clare, and the possibility of a surrounding enclosure adds a quieter, subtler dimension to what is already a historically layered place.