The earthwork measures approximately 35 metres east to west and 28 metres north to south, defined by the remnants of a substantial bank that can still be traced along three sides. Where visible through the vegetation, this bank stands at an impressive width of 5.4 metres overall, rising to about 1.25 metres on its exterior face whilst the interior height measures 0.35 metres.

The defensive fosse, or water-filled ditch, that once protected this site remains waterlogged in places where it can be observed intermittently around the monument. With an overall width of 6.45 metres and a basal width of 1.8 metres, the ditch reaches depths of 0.6 metres, though dense overgrowth to the south has rendered much of the site inaccessible and obscures its full extent. A field boundary running north to south terminates at the northwestern corner of the earthwork, suggesting how later agricultural patterns have respected this ancient feature.

Moated sites like this one at Boscabell were typically constructed during the Anglo-Norman period as fortified farmsteads, serving both defensive and status purposes for their inhabitants. The waterlogged condition of the fosse and the substantial dimensions of the surviving earthworks indicate this was once a significant local stronghold, though time and nature have reclaimed much of what would have been a bustling medieval homestead.