Cowhouse Range to S. of Rhandregynwen

The Cowhouse Range to the south of Rhandregynwen is a late 15th century former hall house that has been converted into a cowhouse. The external walls have been completely rebuilt using brick and weatherboarding, and it features a tin roof.

The building has a cruck-framed structure with a three-unit plan and a two-bay hall. Four trusses remain, although the lower end truss is missing. The wall plates are still present, and exposed mortices on the undersides indicate where the studs of the original timber-framed walls were located. Each cruck truss consists of full-height blades that are morticed and tenoned together. The purlins are set diagonally, and the ridge is notched into the apex. Windbraces are morticed into both the hall and upper-room purlins, and there is evidence of smoke blackening throughout the structure.

The upper room end truss has been truncated above the collar, and about one meter in front of it is a louvre truss that rests on the upper purlins. The partition for the upper room, or dais end, is box-framed and features two diagonal braces above the tie beam. The central hall truss has chamfered blades and arch-braces, with one of two diagonal braces still intact above the collar, and a small yoke positioned below the apex. A tie beam was added to this truss at a later time but has since been removed. The passage partition truss retains its upper collar, and mortices for two lower ties and panel infill are also visible.