That notation alone gives a sense of how early the building had fallen out of use, and how long it has been standing empty since.

The mill sits roughly a kilometre north of Castletownroche, built hard against a steep natural scarp to its east, a practical choice that gave the structure support and shelter on one side while leaving its five-bay southern elevation open to the light. The windows were stone-arched on the outside, with wooden lintels behind them that have long since disappeared, and brick-arched on the interior, a small detail that hints at a certain care in the original construction. The wheel-pit, set alongside the western wall, has been filled in, but the stone-arched opening at the base of that same wall, about 1.3 metres wide, still marks where water was channelled in to drive the machinery. That water came via a millrace running roughly 750 metres to the north, drawing from the Awbeg at two separate intake points, an arrangement visible on the 1842 Ordnance Survey six-inch map. A millrace is essentially a purpose-cut channel designed to deliver a controlled flow of water to power a mill wheel, and the length and dual intake of this one suggest the builders took care to ensure a reliable supply. The roof is gone entirely, but the equal height of the end and side walls indicates it was hipped rather than gabled, sloping inward on all four sides. What remains inside is described simply as an empty shell, three storeys of roofless stonework open to the sky above the Awbeg.