What makes the village quietly arresting is the gulf between what it once was and what it now appears to be. Beneath and around a small, unremarkable settlement lie the buried remnants of a medieval borough, a castle, and a church, none of them visible above ground.

By the fourteenth century, Dungarvan had achieved burgage status, a legal designation that gave a settlement certain commercial and civic rights under medieval English law, effectively recognising it as a functioning town with property to be bought, sold, and inherited. A deed preserved in the Calendar of Ormond Deeds records Hugh son of Randulf granting his son William a plot of land among the burgagers of Dungarvan, with its boundary running along the King's highway towards Thomastown to the south. Three centuries later, the Down Survey of 1655 to 1656, the great Cromwellian mapping project that documented landownership across Ireland, noted a small castle still in repair at Dungarvan, with Peter Shortall, John Archdeacon, and Redmond Archdeacon listed as proprietors in 1640. The same survey's parish map recorded a church on glebe land within the settlement. Neither building has left anything visible today. At the western end of the village, however, a motte survives; a motte being a raised earthen mound, typically topped with a timber or stone fortification, and one of the most recognisable signatures of early Anglo-Norman settlement in Ireland. Its presence here, combined with the documentary evidence of a castle, a church, and a functioning borough, suggests that this small Kilkenny village was once a place of genuine local consequence, positioned as it was on the road between Gowran to the north and Thomastown to the south, with routes reaching east towards Graiguenamanagh and west towards Kells. The full extent of what that medieval borough looked like, and exactly where it reached, remains unknown.