Hydro-electric Station below Caban Coch Dam (north power house)

The hydro-electric station below Caban Coch Dam, specifically the north power house, is a symmetrical building made of brown stone with a slate roof, situated parallel to the River Elan. It consists of a larger block with four windows and an attached lower block featuring three windows, both oriented towards the river. Each block has a lantern ventilator. The larger block has a central doorway facing the river, with a small window above it and two windows on each side, featuring cruciform glazing. The rear elevation is similar but does not have a doorway. The gable end facing the dam includes a doorway with an elliptical head and a round window above it. The lower block is set forward and has a doorway at the angle, with three windows: a central two-light window flanked by three-light windows. The rear of the lower block is similar but has a central doorway instead of a window, while the gable end away from the dam features a large three-light round-headed window with a heavy transom.

Inside, the station retains its operating machinery, including turbines and generators in the upstream blocks, while the downstream blocks have railed pits and wooden cases with gauges.

A footbridge connects the two power stations. It is constructed of stone and features three broad elliptical arches, with return walls at the ends opposite the entrances to the power houses. The bridge connects to revetment walls below the power houses, made of grey stone with splayed downstream ends and arched outlets.