The enclosure measures roughly 31.5 metres north to south and 32.5 metres east to west, its earthen bank still standing around three metres high, with sections retaining their original stone facing. Two gaps break the circuit, one to the north-east and one to the south-west, almost certainly the original entrances.

This is a rath, the most common monument type in the Irish landscape. A rath is an early medieval farmstead, typically dating from roughly the fifth to the twelfth century, where a single family or small household enclosed their home ground within a raised earthen bank and ditch. They served as much as a marker of status and territory as a defensive structure. The stone facing visible in parts of the Ardrah bank is a detail worth noting: many raths were purely earthen constructions, and the incorporation of stonework suggests either local building tradition or, possibly, material salvaged or adapted over time. The site's position atop its low hill, with a clear view south towards the Mealagh River, is entirely characteristic of how these enclosures were placed, oriented towards water and productive low ground while remaining slightly elevated above it.