Court tombs are among the earliest megalithic monument types in Ireland, characterised by an unroofed semicircular or oval forecourt formed from large upright stones, which opens into one or more roofed gallery chambers where the dead were placed. They belong broadly to the Neolithic period, and the Burren, with its bare pavements of karst limestone, contains a notable concentration of them.

Parknabinnia sits within a landscape that has been shaped as much by geology as by human hands. The Burren's limestone surface, cracked into the distinctive fissured slabs known as clints and grikes, provided Neolithic communities with abundant raw material for construction, and the thin soils, now largely bare, are thought to have supported more woodland and agricultural activity in prehistory than the current exposure suggests. Court tombs in this region were typically communal burial monuments, used over long periods rather than for a single interment, and the forecourt itself may have served a ritual or ceremonial function for the living as much as a practical one for the dead.