Agricultural Range at Hafod

The Agricultural Range at Hafod is a tall, rectangular barn built from whitened rubble, featuring a medium-pitched old slate roof with tiled ridges and crude stone kneelers at the former gable parapets. The north gable has a boarded stable door set in a pegged wooden frame, with a loading bay above that has been reduced and fitted with a leaded insert. The barn includes large central entrances on the sides, each with stable doors in pegged frames and exposed timber lintels; the eastern entrance is accessed by two sandstone steps. Flanking the eastern entrance are boarded upper loading bays, and there are two tiers of ventilation slits, some of which are blocked. A 20th-century corrugated iron lean-to is attached to the right of the entrance, partially obscuring the right-hand loading bay. The south gable features three tiers of ventilation slits.

To the west of the barn, there is a low byre range that projects forward by 2 meters, constructed in the same style. It has a boarded stable door in a pegged wooden frame on the north gable, with a loading bay above that has been reduced and fitted with a modern timber window. To the right of the first window from the left, there is another window that was formerly an entrance, featuring 8-pane glazing above a boarded lower section. Another window, also originally an entrance, is located before the final door. An additional bay has been added to the far right, with a small window and door similar to the others. The rear roof pitch of the byre is shallower than that of the main barn. There is a square, plain-glazed window in the gable end above a modern lean-to, with an entrance at the rear.

The main barn consists of three bays with large, pegged queen strut trusses dating from around 1600, featuring chamfered purlins. The trusses rest on sections of wall plate, although this is missing in other areas of the wall head, suggesting possible re-use. Evidence of morticing on the trusses indicates that they may have originated from a timber-framed building. The five-bay byre section has crude, pegged collar-and-tie-beam trusses with long raking struts, and there is a later end bay beyond a rubble wall that contains a ceiled loft.