Barnhourie Mill, Sandyhills

Barnhourie Mill is a late 18th-century, L-plan, two-storey corn mill situated on a steeply sloping site beside the Barnhourie Burn. An external timber and iron waterwheel is located on the north side of the two-storey east end. Former grain storerooms are attached to the northwest elevation. The mill is constructed of whitewashed random rubble with rough-hewn quoins.

The southwest elevation, which faces onto sloping ground, contains the mill machinery on the right-hand side. A central doorway is topped by a small gable, and is flanked by short windows. The grain store features two timber-boarded doors, each with a small two-pane window to the right. The roof is slate, with small cast-iron rooflights.

Internally, the mill retains some 18th and 19th-century machinery, including three millstones and a significant amount of gearing wheels. The grain storerooms contain a fireplace and some boarded wall panelling.

A settlement at Barnhourie is documented on James Dorritt's 1750 map and Roy’s 1752 Map of the Lowlands, both naming it "Barnhurry." The first edition Ordnance Survey map of 1849, published in 1854, depicts Barnhourie Mill, a neighbouring cottage to the northwest, a large mill dam, and other buildings within the shoreline hamlet of Sandyhills. The plan form of the mill matches its current footprint, and the cottage is shown with a rectangular plan. An Ordnance Survey Name Book from 1848-51 describes the mill as a corn mill with a detached dwelling house. By 1893, a third building behind the cottage had been demolished, and the cottage showed minor additions to the rear, along with the mill dam shown partially infilled. The 1907 Ordnance Survey map labels the mill as ‘disused.’ An aerial photograph from around 1963 shows the buildings in their current form.

The detached cottage to the northwest is excluded from the listing.