The site consists of a raised rectangular platform measuring 32 metres from northwest to southeast and 29 metres from northeast to southwest. What makes it particularly striking are the water-filled moats that still define its boundaries; these flat-bottomed defensive ditches vary in width from 9 to 10 metres, expanding to 13 metres at the southwestern corner. The internal moat reaches depths of 2 metres on the northwestern side, whilst the external ditch maintains depths between 1.2 and 1.6 metres.

Though now overgrown and weathered by centuries, the earthwork remains clearly defined against the landscape. A pond lies approximately 30 metres to the southwest of the site, likely connected to the original water management system that kept the moats filled. These moated sites were typically constructed during the Anglo-Norman period as fortified farmsteads, providing both defence and status for their inhabitants whilst managing agricultural estates.

The site was documented by Barry in 1977 and later included in the Archaeological Inventory of County Wexford published in 1996. Whilst many such sites have been lost to agricultural improvement or development, this example at Garryntinodagh survives as an important reminder of medieval settlement patterns in southeast Ireland, when security concerns shaped even rural domestic architecture.