Court tombs, built during the Neolithic period roughly five thousand years ago, take their name from the open, semicircular forecourt that precedes the burial gallery. Most have a single court and a single gallery. This one has a court at each end, making it a dual court tomb, a form that accounts for only a small proportion of the several hundred court tombs recorded across the island.

The tomb is aligned roughly north to south, with its two galleries set 1.1 metres apart within the mound. Each gallery is divided by upright jamb stones into two chambers, a common arrangement that may have allowed different deposits, whether human remains or ritual goods, to be kept distinct. The northern end is the better preserved: a broad open court leads into a front chamber four metres long and up to 1.7 metres wide, which then gives way to a rear chamber 3.5 metres long, narrowing as it approaches the backstone. A single facade-stone survives at the northern tip of the mound. The southern court has fared less well; only two stones remain of it, doing double duty as entrance jambs, and the outer end of the southern front chamber has been lost entirely. The rear chamber there, however, also measures 3.5 metres and narrows in the same way towards the back. The monument was documented in detail by Ruaidhrí de Valera and Seán Ó Nualláin in their 1972 survey of megalithic tombs, which remains a foundational reference for Irish prehistory.

The tomb sits in farmland and is described as well preserved though significantly overgrown, meaning the stonework is largely intact beneath the vegetation even where it is difficult to read at first glance. The proximity of Dungummin Lough gives the surrounding landscape a quiet, waterlogged character that feels appropriate, if accidentally so, for a monument of this age.