It is an odd layering of time: a feature of uncertain age attached to a monument that is genuinely ancient, the whole arrangement domesticated by a garden fence and whatever grows nearby.

Court tombs are among the earliest megalithic monuments in Ireland, typically dating to the Neolithic period and characterised by an open ceremonial forecourt leading into a roofed gallery. The enclosure here, recorded by archaeologists Ruaidhrí de Valéra and Seán Ó Nualláin in 1964, sits at the eastern end of that gallery. They described a circular stone-faced bank roughly one metre high, one to two metres thick, and enclosing an area of approximately four and a half metres in diameter. Their interpretation was cautious: the feature probably represents a later alteration of the court area of the tomb, perhaps an attempt by someone, at some unknown point, to modify or repurpose the ancient structure. Crucially, there is no evidence that the enclosure itself is of any great antiquity. It may be relatively recent, a kind of informal intervention on an already layered site rather than a second prehistoric episode.