Well House, Off Head Rd, Annalong, Newry, Co Down, BT34 4RJ

This building is situated on the Kilkeel – Annalong section of the Mourne Conduit. It contains valve gear which regulates the flow into the Dunnywater siphon (across the Annalong Valley, to its north). It is a one-storey/ single-bay building with a pitched natural slate roof (with finely dressed knee stones and raised chamfered verges). Ogee cast-iron gutters. Walls of rock-faced granite blocks set in irregular courses over a chamfered plinth. There is a central window to each side wall and north-facing gable, all now infilled with concrete blocks. There is a wrought-iron double-leaf door in the south gable, with segmental head over. The dressings to the door and windows are of rusticated granite. In each gable apex is a ventilation roundel, also now infilled (these formerly had louvres).