This is an icehouse, one of those practical but peculiar features of post-1700 country house life, a subterranean or semi-subterranean chamber designed to store blocks of ice cut from frozen ponds in winter and kept insulated through the warmer months, providing something close to refrigeration for the kitchens of a wealthy household. The detail that makes this one quietly strange is the surrounding absence: the house is gone, the estate is gone, and only this small utilitarian structure remains.

Baronstown House, which once sat roughly 395 metres to the south-southwest, has been levelled entirely. The walled garden, another common feature of demesne life, survives some 35 metres to the north-northeast, but the main house itself left nothing above ground. Icehouses were typically built at a remove from the main residence, tucked into woodland where shade and earth could help maintain low temperatures year-round. The brick arched entrance here faces north, a deliberate orientation that would have limited direct sunlight and helped keep the interior cool. That the builders chose red brick, rather than the rubble stone common to many rural outbuildings in the Irish midlands, suggests a degree of care and investment in the structure, fitting for a facility that served the daily comfort of a substantial household.