What survives today is modest by any measure, and the building's later life as a grain store rather than an operational mill means it is easy to walk past without registering its age. Yet the west end of this stone structure quietly carries a documentary history stretching back nearly four centuries.

The Civil Survey of 1654 to 1656, a detailed land inventory carried out under the Cromwellian administration, notes a mill at Westpalstown, a small townland in north County Dublin. The same site appears to be marked on Duncan's county map of 1821, and by the time the Ordnance Survey produced its six-inch mapping in 1837, the building is labelled explicitly as a cornmill. A cornmill, in this context, was a water-powered structure for grinding cereal grain, typically wheat or oats, into flour or meal, and such mills were once common features of the Irish countryside wherever a suitable stream provided power. When the Vernacular Buildings Survey of County Dublin examined the site in 1994, the surviving portion was the west end of a two-storey stone building with a loft above. The entrance was set in the south wall, plain windows with stone sills lit the interior from the west end of the south wall and at ground-floor level in the west wall, and a doorway in the upper east gable opened onto the loft space. A corrugated iron roof had replaced whatever earlier covering the building once had.

Since that 1994 survey, the picture has changed further. The other buildings shown at the site on the 1837 six-inch map are no longer extant, which means the surviving fragment is now the sole physical link to a milling operation that the documentary record traces back to the mid-seventeenth century at the very least. The site sits within a working farmyard, so access is not straightforward and any visit would require prior arrangement with the landowner. Those with an interest in vernacular industrial structures, the kind of functional rural building that rarely attracts formal preservation, may find the surviving west gable and its plain stone detailing worth examining closely, not for dramatic effect, but for what it quietly represents about continuity of use across a very long stretch of Irish agricultural life.