The outline is faint enough that it reads more clearly from aerial photography than it does at ground level, a quiet reminder of how much of Ireland's early ecclesiastical landscape survives not as standing masonry but as subtle compression and humping in the turf.

The site sits within an enclosed early church complex at Killaspuglonane, a placename that carries within it the name of a saint: the Irish "Cill Easpaig Fhionnáin" points to a bishop named Fionnán, suggesting a foundation with early medieval roots. The rectangular building, roughly nine metres along its east-west axis and about four and a half metres wide, lies on a rise within that enclosure, approximately sixteen metres south of the church remains. Buildings of this kind found within ecclesiastical enclosures could serve a variety of functions, from a priest's residence to storage or domestic use associated with the church community. Without excavation or documentary evidence, the precise role of this particular structure remains open. What the dimensions do suggest is a modest, purposeful construction, neither a great hall nor a minor outbuilding, but something in between.