Outbuildings, Knockan House, 9 Killunaght Road, Dungiven, Co Londonderry, BT47 4TU

These are long, rectangular, two-story stone farm outbuildings dating to the 18th and 19th centuries. They were likely used as a linen warehouse before the decline of the linen industry and possess significant group value alongside Knockan House.

The outbuildings comprise a ten-bay long range facing northwest onto a spacious farmyard, which abuts Knockan House on its southeastern side. The openings, consisting of doors and windows, are irregular and feature single doors with stone lintels above and louvred windows. The ground floor walls are constructed of sandstone, using a mix of coursed rubble and random rubble, while the walls above are random rubble. Cills are made of crude sandstone. The roof is slated, with clay ridge and hip tiles, and lacks chimneys. The gable and rear walls are simple stone constructions. There are several other ruinous stone outbuildings around the farmyard's sides and along the access lanes. A rear access to Knockan House passes through the farmyard.

A decorative stone plaque bearing the initials “W E S” and the date 1721 is affixed to the building; a plain stone below it indicates a restoration in 1870. Variations in the stonework suggest the 1870 work may have involved adding the upper floor. The outbuildings appear on an Ordnance Survey map of 1830. The Stevenson family were described as linen merchants in the latter half of the 18th century. Ordnance Survey Memoirs suggest the datestone may relate to Knockan House itself. The buildings may be the property referenced in the Ordnance Survey Memoirs as belonging to John Stevenson and Company, with one building containing a boiling house, wash mill, lapping room, and drying loft, and another containing beetling engines and rub-boards. A beetling mill is indicated on the 1830 Ordnance Survey map on the opposite side of the Owenbeg River.