What makes the site quietly interesting is not just the surviving structure but what it implies about the one that did not survive: the original complex comprised two distinct mills operating side by side, each serving a different purpose, each now reduced to a single modest remnant and a gap in the ground.

The Ordnance Survey six-inch map of 1842 marks the site as 'Aghamilla Mills', identifying both a corn mill and a tuck mill. A tuck mill, also known as a fulling mill, was used to process woollen cloth by beating it in water to thicken and clean the fibres, a common rural industry in nineteenth-century Ireland before mechanised textile production displaced it. The corn mill, by contrast, ground grain for local use. One building survives, measuring approximately seven metres long by seven metres wide, and along its southern elevation the wheel-pit has been infilled, the hollow where a waterwheel once turned now sealed over. The owner confirms it functioned as the corn mill. The tuck mill has not survived as a standing structure.