Barn and Granary Approximately 10 Metres East of Prowse Farmhouse

The building is a barn and adjoining granary located approximately 10 meters east of Prowse Farmhouse, dating from the 16th century with alterations made in the 19th century. It is constructed of cob on rubble footings, with 19th-century work in mortared volcanic rubble and a corrugated iron roof that was formerly thatched. The barn runs on a north-south axis and features large opposing doors leading to a threshing floor at the south end, with the granary block projecting at right angles from each end.

In the 19th century, a horse engine house was added to the east side of the barn, and the south wall of the granary was rebuilt to create a shippon with a hayloft and storage above. The east-facing front has a gable-ended engine house with an unglazed brick-lined window and a segmental arch that projects to the right of the full-height barn doorway. To the left, the gable end of the granary features sets of four pigeon-holes on either side of a 17th-century owl-hole.

The barn roof is half-hipped on the north side and includes a narrow ventilator at that end. The south side has a central section built of rubble between pilaster buttresses, which contains two wide openings to the shippon below the hayloft loading bay, flanked by narrow ventilators. The west side of the barn has slightly projecting midstrey walls. The barn has a three-bay roof supported by side-pegged jointed cruck trusses, while the granary has a similar four-bay roof. The cob wall between the barn and granary has been removed, and one of the removed cruck feet has been replaced by a massive wooden screw from a 19th-century cider press.