20 Edenduff Terrace, Antrim, Co Antrim, BT41 4NF

20 Edenduff Terrace is a single-storey, three-bay mid-Victorian terrace cottage of rubble basalt, built in the 1860s as one of a block of four similar cottages. The building is Grade B2 listed.

The house was constructed by the O'Neill family as part of a row of terrace houses for workers on the Shane's Castle estate. The row first appears on the 1902 Ordnance Survey map, though the precise construction date is not documented. Originally, all houses in the terrace blocks featured lattice-paned windows to the front, though these have since been replaced.

The main entrance faces south. The roof is finished in Bangor blue slates laid in regular courses with dark-toned ridge tiles. A single chimney rises on the right-hand gable, constructed of new red brick with a projecting blue-black brick cornice of three courses, topped by a blocking course of red brick and two chimney pots.

The entrance elevation comprises a central doorway flanked by windows on either side. The walls are basalt rubble with roughly squared quoins to the right-hand extremity and a projecting brick eaves course. Red brick flat arches head the openings with block dressings, though these are partly obscured by later cement reveals and raised surrounds. The window surrounds are lugged. The masonry retains what appears to be original lime mortar pointing, though some areas have been repaired with later cement. Creeper covers part of the elevation. The cast iron gutter has no downpipe. Modern rectangular timber fixed lights with top-hung vents, painted white, now occupy the window openings, with projecting painted stone cills. The doorway contains a modern rectangular timber four-panel door with raised and fielded panels, surmounted by a rectangular fanlight of obscured glass in a moulded timber frame, modern metal letterbox, and painted stone block bases to the frame; the doorstep is of painted concrete. Black PVC vertical cable trunking is fitted to the right of the doorway.

The east elevation is a blank gable rendered with a wet dash of crushed stones applied over a smooth cement-rendered plinth. It features overhanging eaves with painted panelled soffits and moulded timber barge boards.

The rear elevation is partially obscured by a later lean-to extension. The original walling to the left is similar to the entrance front, with metal gutter and downpipe on the left-hand side. Three original rectangular metal rooflights remain visible in the original slated roof. The later extension has smooth cement-rendered walls painted white and a roof of synthetic slates with overhanging eaves, plain timber fascia and barge board, PVC gutter and downpipe. Windows in the extension are modern rectangular timber fixed lights with top-hung vents set in plain reveals with projecting concrete cills. The rear door is a modern rectangular flush timber door with a glazed panel. The rear extension was added by 1988, at which time modern hinged windows replaced the original sash windows of the entrance front.

The cottage stands at one end of a terrace of four similar single cottages, this block itself forming part of a row of five similar blocks. The terrace occupies a rural setting facing the main road but set back from it slightly, with a tarmac access road immediately in front, separated from the main road by kerbstones. Across the road is the heavily wooded demesne of Shane's Castle, bounded by a basalt rubble wall, with agricultural land surrounding the remainder of the area. A concrete driveway along the gable leads to a hard standing with a brick-paved path along the rear of the house. Immediately to the north are basalt rubble and rendered outbuildings of no special interest, beyond which is a garden. The building has lost some original features, most notably the lattice glazing to the front windows, but together with the rest of the houses in the terrace row, it still forms a group of definite character and proportion within its pleasant rural setting.