A stretch of ivy-covered wall rising to roughly 2.5 metres, some grass-smothered footings at the south-west corner, and a west gable: that is the visible sum of a structure that once measured approximately 17 metres east to west and 7 metres north to south. No cut stones survive in place, and no architectural details remain to hint at the style or period of the building's construction.

By 1837, when the first edition Ordnance Survey six-inch map recorded it, the church was already a ruin, annotated simply as 'Templeoran Church' and shown standing at the centre of a circular graveyard. That circularity is perhaps the most telling detail on the whole site. Circular ecclesiastical enclosures are a recognised signature of Early Christian religious settlements in Ireland, where a roughly circular boundary, often a raised bank or ditch, defined the sacred precinct of a monastery or church. The graveyard boundary at Templeoran may preserve the line of exactly such an enclosure, making the surrounding ground potentially far older than the ruined walls it contains. The church itself is aligned ENE to WSW, a slight deviation from the conventional east-west orientation that was standard for Christian worship.

The site sits within a broader landscape where the graveyard remains in use, meaning the circular boundary can still be traced on the ground. The ruin itself is largely obscured by ivy, and little stonework is legible at close range, but the shape of the enclosure, visible from above or appreciated by walking its perimeter, is where the older history of the place quietly persists.