This square earthwork, measuring approximately 40 metres on each side, sits on a gentle slope facing southeast. The site’s defining features are its substantial earthen banks, which rise between 1.2 and 1.6 metres on the interior and reach up to 2 metres in height when viewed from outside. These banks vary in width from 4.5 to 7 metres, creating an imposing defensive perimeter that would have been even more formidable in its heyday.

What makes this site particularly intriguing is its flat-bottomed external moat, a defensive feature that still traces the outline of the original fortification. The moat spans 9 to 12 metres across at its widest point, narrowing to between 4.5 and 8 metres at its base, with depths reaching up to a metre below the external ground level. Such moated sites were typically constructed by Anglo-Norman settlers or wealthy Anglo-Irish families between the 13th and 15th centuries, serving as fortified farmsteads or minor manor houses that combined residential, agricultural, and defensive functions.

The Tomgarrow site was first documented by Barry in 1977 and later included in the Archaeological Inventory of County Wexford published in 1996. Its survival in such good condition offers valuable insights into medieval settlement patterns in southeast Ireland, where these moated sites represent a distinctive form of rural fortification that bridged the gap between full-scale castles and undefended farmsteads.