Knockderry Farm, Barbour Road, Cove

Knockderry Farm is a mid-19th century farmhouse with a symmetrical U-plan steading situated to the southeast.

The farmhouse is a rectangular building of two storeys, with single-storey service additions at the rear. It is constructed of whinstone and sandstone, with polished stone margins and dressings, projecting eaves, exposed rafters, and quoin strips. The windows are stone mullioned, and uPVC top-hopper windows have been installed to replicate the pattern of the original glazing. The roof is covered in grey slate with lead flashings, and features squat sandstone ridge stacks topped with octagonal cans. A very tall ridge stack is present on the service wing, alongside a shouldered sandstone stack with a white brick extension.

The southwest elevation has three bays, with a gabled, tripartite glazed porch slightly projecting from the centre. Flanking this are bipartite windows. The first floor has narrower bipartite windows breaking the eaves within gabled dormerheads, and a central semicircular lead dormer. The northwest elevation features a two-bay gable with symmetrically disposed windows, with the rightmost window being blind. A single-storey service block is attached to the left, featuring a bipartite window and a tall stack. A later corrugated-iron roofed outhouse has been built to the outer left.

The steading is a single-storey U-plan structure with a free-standing granary and dairy. It is constructed of whinstone rubble with harl-pointing, stugged sandstone margins and dressings, chamfered reveals, and slightly overhanging eaves. The southwest (main) elevation has seven bays symmetrically disposed, with a round-arched pend at the centre, gable breaking the eaves above. Two windows flank the pend, with gabled bays slightly advanced on the outer left and right, and a bipartite window at the centre, partly blocked. The northeast elevation has various square-headed openings, with some now filled with cement. Similar alterations are evident on the southeast flank. The northwest flank contains stables, with altered openings and interiors, including some horse stalls, and areas of extant cobbling. A bothy is located at the northeast end, a three-bay building with a jamb at the rear, featuring a boarded door with a letterbox fanlight and bipartite windows to the right, with a larger window to the outer right.

The dairy is a rectangular rubble building in the centre of the courtyard with a lean-to, corrugated-iron roof, and is in poor condition. The granary is a three-bay rectangular-plan block, with whinstone rubble and stugged sandstone margins, stugged quoins, and brick infill in the joist holes of a former floor level. A wooden door is centrally positioned, flanked by openings, the one on the right being glazed; former upper hoist doors have been filled in as windows.

The buildings are set into higher ground at the rear, with remnants of a former waterwheel gearing and a lade leading south. The steading roof is grey slate (in poor condition) and includes cast-iron rooflights, lead ventilators and a squat brick stack topped with circular cans.