The monument consists of a raised rectangular platform, measuring roughly 27 to 34 metres from north to south and 20 to 26 metres from east to west. This earthwork is surrounded by a defensive ditch, or fosse, which runs around all four sides, though centuries of neglect have left the eastern section compromised by an old field wall that has since fallen into disrepair.

The platform itself shows varying degrees of preservation; the western to northeastern sections and the south-southwestern to eastern portions remain most intact. The fosse that encircles it maintains a width of about 1.8 metres, with an external depth of 0.2 metres and an internal depth reaching 0.5 metres. Interestingly, the platform appears slightly shallower on its eastern side, which archaeologists suggest may indicate the location of the original entrance to this fortified site.

First documented by Barry in 1981 as part of a survey of moated sites in the region, this monument represents a typical example of Anglo-Norman settlement patterns in medieval Ireland. These moated sites, which proliferated across the countryside from the 13th to 14th centuries, served as defended homesteads for colonising families, offering both practical protection and a visible symbol of authority in the landscape. Today, whilst largely forgotten and overgrown, the earthworks at Moneteen continue to tell the story of medieval life and conflict in County Limerick.