Long Barn at Vaynol Farm

The Long Barn at Vaynol Farm is a Grade II* listed building made of local stone rubble and topped with a slate roof. Measuring 42 meters long and 9 meters wide, it is possibly the largest intact barn of its kind in Wales, comparable in size to major estate barns from the same period in England. The barn serves multiple purposes, including as a hay barn, granary, and storage space. Its thick, slightly battered walls feature off-centre cambered headed doorways on both sides and two tiers of slit ventilators. The northeast gable includes a two-light stone mullioned window that opens into an internal dovecote. An early date stone is placed above the doors.

A mid-17th century extension adds two storeys and features three-light sliding sash granary windows, with a datestone located below the right-hand window. To the north side, there is a small rubble enclosure with a rounded wall that connects to stables, which were mucked out at right angles. The clock cupola is situated on a raised hipped apron roof and is boarded, featuring a corniced lower stage, arched lower openings to the upper stage, and a swept lead roof that culminates in an iron weathervane.

Inside, the barn boasts an impressive nine-bay layout, retaining much of its original roof structure, which consists of tie and collar beam trusses with lapped vertical struts and three tiers of purlins. The floor is stone flagged, and timber lintels are present over the wall vents. The barn is storeyed beyond the full-height stone wall at the southwest end, with roughly hewn ceiling beams and some cylindrical piers. A fine staircase leads to the four-bay attic, resembling the main staircase of Vaynol Old Hall, featuring turned balusters and prominent newel finials; it is likely constructed from spare parts of that staircase after the Old Hall was remodeled in the late 17th century. While the granary hoppers have been removed, the drive shaft remains. The original clock in the clocktower, made by W Potts and Son of Leeds in 1899, is still operational, having started on February 3rd of that year. A dovecote is located at the northeast end.