The structure is so modest in its surviving form that it could easily be dismissed as a natural irregularity in the ground, yet its geometry tells a different story.

A moated site is a medieval enclosure, typically of Anglo-Norman origin, surrounded by a water-filled or marshy ditch and accessed by a causeway. They are relatively common across the Irish midlands and south, generally interpreted as the enclosed farmsteads or minor manorial sites of settler families. The possible house at Donaskeagh sits within the south-western angle of one such enclosure, making use of the moat's own earthen scarp as two of its four sides. What remains is a roughly square footprint, measuring 6.5 metres north to south and 6 metres east to west, defined on the north and east by a low scarp around 15 centimetres high and a metre wide. A narrow entrance, less than a metre across, sits at the centre of the east side. A 2-metre-wide causeway crosses the fosse, the ditch surrounding the enclosure, at the south-western angle, linking the interior of this possible house directly to the outer bank beyond. The date of the structure is not known, and its function, while suggestive of habitation, remains uncertain. That ambiguity is part of what makes it quietly compelling: a small square of slightly raised ground that someone, at some point, shaped with clear intention, and which the wet pasture around it has preserved almost by accident.