Ceulan Mills

Ceulan Mills is a Grade II* listed building made of rubble stone with a slate roof. It is two storeys high and features a seven-window range. The windows have thin slate sills, brick heads, and simple vertical glazing bars, with some being three-light and others four-light. The east front includes a door with an 8-pane overlight in the left bay and an altered opening with a timber lintel in the fourth bay. The south end wall showcases an exceptionally large iron breastshot waterwheel, measuring 7.7 meters in diameter, with the iron hub marked 'J. Edgar, Dublin' and the iron rim marked 'Griffith Ellis & Co 1891 Aberystwyth'. There are two first-floor windows and one apex window on this side.

The rear of the building has seven bays, with outside steps leading to a first-floor door on the right and a door in the ground floor third bay from the left. The north end features a late 19th or early 20th-century cast-iron Pelton wheel, which is powered by an underground leat, with first-floor windows located above it.

The interior has not been inspected but is reported to contain complete surviving late 19th or early 20th-century machinery, including carding engines, looms, a warping frame, and two spinning mules on the first floor.