The arrangement is unusual enough to have earned its own classification: a double platform site, where two distinct enclosed areas occupy the same elevated ground, their interiors defined by low internal banks and separated yet connected by that shared two-metre-wide ditch.

The site was recorded by Barry in 1977, who noted that the southern enclosure covers roughly 325 square metres while the larger northern one extends to approximately 792 square metres. The southern enclosure measures about 30 metres north to south and 43 metres east to west, with rounded angles and relatively straight sides, except along the north face where the line curves slightly outward. The northern enclosure is aligned on a different axis, running northwest to southeast, giving the pair a subtly asymmetrical relationship on the ground. By the time Barry was writing, both were already heavily degraded and entirely overgrown, their earthworks submerged beneath vegetation, which makes reading the site visually quite difficult even when you are standing on it. The function of such double platform enclosures is not always straightforward to determine; they may represent successive phases of activity, or a deliberate division of a single defended space for different purposes, though nothing in the surviving evidence at Warrenstown settles the question.