Threshing barn at the Southern Farmstead

The threshing barn at the Southern Farmstead is a late 18th-century structure that was updated in the 20th century.

The barn features coursed-flint walls with red-brick dressings in Flemish bond, topped with a clay-tile roof. It is aligned east to west, with main doors located centrally on both the south and north sides, leading into the yard.

This tall barn consists of five bays, with red brick quoins and detailing around the openings. A single-brick course runs below the eaves beneath the half-hipped clay tile roof. On both the north and south elevations, there is a central, full-height vehicular entrance with a timber lintel. The door frames still show remnants of a pair of timber-planked doors with strap hinges, originally hung on pintles, some of which remain. The bays on the north elevation are flanked by coursed-flint walls, with red brick quoins at the corners. Each bay features two ventilation openings, one above the other, also detailed in red brick. The south elevation mirrors this design, but at the western end, the lower ventilators are spaced further apart to accommodate a former opening that has since been infilled with later brick. This infill includes a red-brick architrave with quoins and a red-brick segmental arch.

The east elevation is set into a bank, where a large, high-set opening beneath the half-hipped gable is infilled with corrugated iron, featuring a red-brick architrave with quoins and a red-brick segmental arch. The west elevation includes four ventilation openings, also detailed in red brick, with the lower ones spaced wider apart.

Inside, the barn is a single open space with a concrete floor. In the south-east corner, there is a run of two timber rails connected by smaller timber uprights, which may indicate the former location of animal stalls or storage bins. The 20th-century roof structure consists of continuous side purlins supported by A-frames that have two collars, joined by vertical tension rods.