The 1841 Ordnance Survey six-inch map shows the southeastern side and part of the southwestern side of what was likely a rectangular enclosure, measuring approximately 30 metres from east to west. Today, no surface features survive to mark where this defensive structure once stood, leaving only cartographic evidence of its existence.

Moated sites like this one were a common feature of the Anglo-Norman landscape in medieval Ireland, typically dating from the 13th to 14th centuries. These earthwork enclosures, surrounded by water-filled ditches, served as fortified homesteads for colonising settlers who needed protection in what was often hostile territory. The rectangular shape suggested by the map evidence at Ballydavis fits the typical pattern of these sites, which usually consisted of a raised platform surrounded by a deep, wide moat that would have been fed by local water sources.

The documentation of this site comes from the Archaeological Inventory of County Laois, published by the Dublin Stationery Office in 1995 and compiled by P. David Sweetman, Olive Alcock, and Bernie Moran. While the physical monument may have vanished from the landscape, its inclusion in early Ordnance Survey mapping ensures that this piece of medieval Laois history remains part of the archaeological record, offering insights into the patterns of settlement and defence that shaped the Irish midlands centuries ago.