Dreifa Mills including two Water-Wheels

Dreifa Mills is a woollen mill built in 1896, constructed from rubble stone with red brick dressings and a slate roof. The building has three storeys and features a four-window range of 9-pane camber-headed windows, each with tilting top-lights, red brick surrounds, and slate sills. Red brick quoins accent the corners, and there are small windows in the end gables. The north front includes broad doors in the third bay of the ground floor and the first bay of the first floor. The west end wall has a one-window range of similar windows, while the south side features a door in the third bay of the ground floor.

On the east end, there is a restored massive overshot iron wheel, which is raised up on two stone carrying walls and fed by a renewed metal leat supported by tall wooden posts. This wheel was made at Bridgend Foundry in Cardigan. Inside the mill, a very large iron fly-wheel remains. Just east of the wheel-pit, there is an outside boiling-vat made of cast iron, set in stone with a small fireplace beneath. A second raised wheel is located to the south of the first wheel, also in a raised stone wheel-pit, but it remains unrestored.