This defensive enclosure once protected Lissylisheen Castle, forming part of a larger multiperiod field system that sprawls across the gently undulating landscape. The bawn's impressive dimensions, measuring approximately 40 metres from northeast to southwest and 33.7 metres from northwest to southeast, mark it as one of the larger examples in County Clare, comparable in scale to those at Bohneill and De Clare's House.

The surviving walls showcase the distinctive late mediaeval building style of North Clare, constructed from large, crudely dressed limestone blocks laid in uneven courses. These double-faced stone walls, varying between 1.4 and 1.8 metres in width and standing 1 to 1.5 metres high, share construction techniques with other notable sites in the region, including the bawn walls at Glensleade and Caisleán a'Mhagaidh, as well as the garden walls at Lemeneagh. The southwestern wall remains largely intact along its entire 37-metre length, with substantial adjoining sections of the northwestern and southeastern walls still visible, though the original entrance has been lost to time.

Archaeological investigations by Ua Cróinín and Breen in the mid-1990s concluded that the site had been abandoned by the end of the 17th century, and Thomas Westropp's 1899 documentation confirms it was already in its current ruinous state by then. Today, several modern house ruins dot the bawn's environs; one built directly over the southeastern corner, another just 4 metres to the northeast, and a third 35 metres to the northwest. The surrounding landscape contains additional structures, enclosures and field boundaries whose dates remain undetermined, all contributing to the complex archaeological tapestry of this historic North Clare site.