It is easy to miss, and that is part of what makes it worth pausing over. The form is subrectangular, meaning roughly rectangular but without perfectly squared corners, measuring approximately 22.6 metres east to west and 9.9 metres north to south. For most of its circuit, the boundary survives only as a slight scarp, a low step in the ground where the earth was cut or built up, leaving a barely perceptible edge rather than an upstanding wall.

The most legible section lies in the south-east quadrant, where traces of a bank and an external fosse are still visible. A fosse is a ditch, typically dug to provide both a defensive obstacle and a ready source of material for piling up an accompanying bank. Together, bank and fosse were the standard grammar of enclosed settlement across early medieval Ireland, and their presence here, however worn, connects this quiet terrace to a much wider pattern of farming, habitation, and territorial marking that shaped the Irish countryside over many centuries. Enclosures of this kind were often attached to a ringfort or stood alone as animal pens, field boundaries, or homestead enclosures. At Lissadulta, the precise original purpose remains unrecorded.

The siting on a terrace on a north-west-facing slope is typical of the practical logic behind such places. A terrace offers a relatively level platform without requiring extensive earthmoving, and even a north-west aspect provides reasonable shelter and sightlines across the surrounding ground. The enclosure is modest in scale, neither a grand fortification nor a large agricultural compound, but it occupies its position with a kind of quiet purposefulness that rewards close attention at ground level.