Lime kilns were once a fixture of the Irish countryside, used to burn limestone at high temperatures to produce quicklime, which farmers spread on acidic soils to improve fertility. This one still retains its arched recess on the north-facing front, the opening measuring about 1.7 metres high and 2.3 metres wide, though the rear of that recess has collapsed and the cavity is now filled with the rubble of its own fallen core.

The structure is built in the random-rubble style typical of vernacular agricultural construction, with rough, uncoursed stonework encasing an earthen core. At the top, a limestone-lined funnel roughly two metres in diameter, now partially collapsed, is where the limestone and fuel would have been loaded in alternating layers before firing. An earthen ramp at the rear provided the means to bring materials up to that loading point, a practical solution that avoided the need for any more elaborate infrastructure. The kiln sits in a hollow, which would have offered some shelter during firing and may also have made it easier to construct the ramp at a workable gradient. Overgrowth has softened the outlines considerably, giving the whole structure the appearance of a low, vegetation-covered mound from a distance, only revealing its industrial past on closer inspection.