Threshing Mill And Granary, Auchtavan

The Threshing Mill and Granary at Auchtavan is likely from the mid-19th century. It features a rectangular plan with two bays and an uncovered horse walk, situated on sloping ground that descends steeply to the south. The structure is built from large blocks of pink and grey squared granite, with small pieces of snecking that resemble cherry caulking in some areas.

On the east elevation, there is a paired, timber-lintelled, square-headed cart-arch entrance in the left bay, which leads to a small square opening to the left. A granary or hayloft door interrupts the eaves on the right. The right bay contains a central door flanked by arrowslit openings.

The west elevation has a raised area for the horse walk on the left, with a doorway at the center flanked by arrowslits. To the right, there is a large stone slab that blocks the shaft opening for the millwheel gearing. The right bay features two small square openings positioned close to the eaves, overlooking the steeply falling ground. The north and south elevations are blank gabled walls.

The roof is made of corrugated iron, with ashlar skews and shaped skewputts. Inside, there is an arrowslit opening on the west elevation, south of the door, above a small square opening that is offset to the right and nearly at floor level. This opening incorporates parts of the bearing pillow block for the wheel gearing. A low wall approximately in the center of the interior forms the northern edge of the hayloft floor.