Barn at Lower Tresenny

The Barn at Lower Tresenny is a Grade II* listed building featuring a timber frame supported by a stone base along the long walls, with the upper part weatherboarded in oak. The gable walls are constructed of thinly coursed rubble stone, and the barn is topped with a 20th-century corrugated steel roof. There are opposing off-centre doorways leading to the threshing floor. On the northeast side, the upper barn wall is weatherboarded, while the lower wall features a 16th-century six-light diamond mullion window set in a chamfered, roll-moulded frame, although this elevation is partly obscured by a 20th-century addition. The north gable includes three ground-floor doorways leading to a cowhouse, with chamfered frames and a 16th-century plank door on the right. The upper gable has a wooden five-light diamond mullion window in a chamfered frame. A lean-to on the left has an unglazed opening on the ground floor and a boarded door leading to a pitching loft above.

The barn consists of six bays and is notable for its two pairs of massive crucks, showcasing exceptionally fine carpentry, which flank each side of the threshing floor. The northern pair of crucks is complete, while the southern pair has been sawn off below the tie. The width of the cruck blades is greatest between the tie and collar, and at the apex, the blades do not converge but instead support a triangular yoke. There are two tiers of purlins, with the top row trenched and the bottom row butted directly against the back of the cruck blades, supported from the ends of the tie beams by angle struts. In addition to the two cruck trusses, there are three collar and tie beam trusses resting on heavy posts with jowled heads. The sides of the barn feature rectangular wall framing, which is covered by oak weatherboarding. The flagged threshing floor has a central doorway leading to the lower cowhouse and a plank door fitted with strap hinges.