Measuring roughly 31 metres north to south and 21 metres east to west, the enclosure is substantial enough to have served a serious function, yet nothing in the landscape announces it. A smaller annexe, about 10.6 metres along its north-south axis and built in the same manner, is attached to the southern side, suggesting that whatever activity took place here required at least two distinct spaces.

The enclosure sits within a wider field system, which places it in a landscape that was organised and worked over a long period, though exactly when is unclear. What gives the site a particular interest is its proximity to a ringfort lying just 20 metres to the south-east. Ringforts, which are circular or roughly circular enclosures typically defined by an earthen bank or stone wall, were the most common form of rural settlement in early medieval Ireland, generally associated with farming families of middling status. Finding a rectangular enclosure so close to one raises the possibility of a functional relationship between the two, perhaps a stock enclosure, a garden, or a secondary work area associated with the fort's occupants, though no excavation has established this. A house lies about 100 metres to the north, indicating that this corner of Toberroe has been in continuous or recurring use across different periods.