This rectangular enclosure, which once measured approximately 60 metres east to west and 50 metres north to south, appears only on the 1839 edition of the Ordnance Survey six-inch map. The site was unfortunately removed around 1975, but archaeological records preserve its memory and significance.

The moated site was characterised by its wide defensive moat and distinctly right-angled corners, features typical of Anglo-Norman fortified homesteads in medieval Ireland. Today, visitors to the location can still make out a rectangular grass-covered area measuring 36 metres north to south and 26 metres east to west. The original moat, ranging from 5 to 8 metres in width, remains visible as a slight depression on three sides of the enclosure; the eastern perimeter cleverly incorporated the natural defence provided by the adjacent stream.

These moated sites, scattered across the Irish countryside, were typically constructed between the 13th and 14th centuries as fortified farmsteads for Anglo-Norman settlers or wealthy Irish families. The Ballinvegga example, with its strategic positioning in the river valley and substantial moat system, would have provided both security and status for its medieval inhabitants. Though the physical structure has largely vanished, the site continues to tell the story of medieval settlement patterns and defensive architecture in County Wexford.