Maes-y-llyn Farm Building

Maes-y-llyn Farm Building is a structure built from ashlar and rubble stonework reclaimed from Valley Crucis, topped with a slate roof. It is a single range of cowhouses and farm stores. The building features an implement store at the west end, which has a large opening to the south; this opening has an old timber lintel reinforced with a new timber lintel set below it. There is a one-bay animal house and a three-bay barn, which is currently used as a shearing shed, along with an end storage bay facing the road. The gable end of the building is constructed from ashlar and is set at an angle to align with the road.

The south side has several door openings, most of which do not have doors, along with ventilation windows. The east end bay includes small ventilation openings made from reused ovolo mullions. There is one blocked opening on the north side of this bay and a door leading to the adjacent barn.

Inside, the barn section retains two original wrought tie beams, while the roof has been replaced with later king-post trusses that are spaced differently. The bay adjacent to the road originally had two parallel beams for a loft floor, which has since been removed.