Barn at Glan-hespin

The barn at Glan-hespin is a large structure that runs north-south and is located on the east side of the front courtyard, which is believed to be the original farmyard of the house. A modern farmyard is situated to its rear, further east. The west elevation, which faces the farmhouse, features a long wall made of weather-boarded square-panel timber framing on a plinth wall, except for the right bay, which is constructed entirely of axe-dressed stonework. The other timber-framed side wall of the original barn is now located internally. The barn includes doors and hatches in the timber-framed section, as well as a lean-to shed hatch, door, and ventilation slit in the stonework. Both the north and south gable ends are made of similar stonework and have doors. At the rear (east), there is a low wall in the same stonework, which has door and window openings. The barn has a slate roof with a tile ridge and tile verge; the east slope, including the additional part, forms an impressive unbroken catslide roof.

The original timber-framed barn consists of four bays, with a lofted stone-built bay at the south end, which is said to have been added as a stable but is now used as a byre. Informal sheds, pens, and other rooms are located beneath the catslide roof along the east side.