This remarkably well-preserved fortification covers a vast trapezoidal area, stretching approximately 330 metres from northwest to southeast and varying in width from 260 metres on its northwestern side to 320 metres along the southeastern edge. The site is defined by a low earthen bank, standing between 20 and 40 centimetres high on the inside but rising to an imposing 1.5 to 2 metres when viewed from the exterior, accompanied by an outer defensive ditch that now serves as a drainage channel.

What makes this bawn particularly fascinating are its D-shaped corner bastions, a defensive feature that allowed defenders to cover the walls with crossfire. Three of these bastions remain intact, with their flat sides backing onto the interior space; each measures between 7 and 10 metres in diameter, with straight sides extending 12 to 16.5 metres. The fourth bastion at the southern corner met an unfortunate end, first partially destroyed by road construction sometime before 1838, then completely obliterated by a driveway by 1939. The interior space has been divided into four roughly equal fields by hedged earthen banks, with the northwestern to southeastern bank following the line of what was once a tree-lined avenue, clearly marked on Taylor’s 1783 map of County Kildare.

Historical evidence suggests this may have been a plantation bawn, one of the fortified enclosures built by English and Scottish settlers during the plantation of Ireland. The avenue that once led to the site can still be traced as two parallel field banks extending northwest from the fortification, offering a tangible connection to the landscape’s colonial past. The site’s appearance on 18th-century maps as a tree-lined rectangular area hints at its later use as a formal landscape feature, perhaps part of a larger estate, showing how these defensive structures evolved and adapted to changing times rather than simply falling into ruin.