It is a lime kiln, a type of industrial furnace once common across rural Ireland, used to burn limestone at high temperatures to produce quicklime for fertilising fields and mortaring walls. This one is not small: the front elevation stands 3.8 metres high and stretches roughly 8 metres wide, which gives some sense of the scale of agricultural and construction activity it once served.

The kiln is built in the manner typical of the form, with sandstone rubble walls encasing a packed earthen core, the whole thing designed to contain and direct intense heat. The south-facing front elevation retains a lintelled arched recess, the opening through which fuel was fed and lime was eventually drawn out, though the structure has collapsed at the rear. Lime kilns of this kind were a practical fixture of the Irish countryside from at least the seventeenth century onwards, and their operation was straightforward in principle if demanding in practice: layers of limestone and fuel, usually coal or turf, were burned together over many hours until the stone broke down into usable lime. The finished product was essential to the agricultural improvement movements of the eighteenth and nineteenth centuries, when landlords and tenants alike worked to counteract the acidity of Irish soils.

The top of the kiln and its rear are currently inaccessible due to heavy overgrowth, which means much of its original form can only be read from the front. What remains visible from the road is enough to suggest a well-built, purposeful structure that served a working landscape for generations before falling out of use.