121 Muldonagh Road, Claudy, Co Londonderry, BT47 4EJ

No. 121 Muldonagh Road is a single-storey, three-bay dwelling built of stone and finished with a whitewashed facade. The house dates from approximately 1820 to 1839 and sits at an angle to Muldonagh Road, demonstrating its vernacular character and relationship to surrounding buildings. It has a gabled, corrugated iron roof that is unpainted. The ground floor level is below the roadway, with a verge falling to the house wall.

The west side, considered the rear of the cottage, contains a single window serving the kitchen. The south gable has no windows and a central chimney. The east side features an entrance door, two windows to the south, and one to the north. An additional window has been added to a partial conversion of what was originally an outbuilding, now used as a bedroom, which extends to the north of the original dwelling. The windows are timber and of modern design, though the original window openings and former cills have been retained; the window within the conversion includes a concrete cill. The conversion retains the original door to the outbuilding. A chimney between the kitchen and conversion is visible, and the roof is defined by a white-painted cement barge. The gable of the outbuilding is similarly treated, and the roof is corrugated iron, unpainted on both sides. Half-round metal gutters with single downpipes are present on both sides of the building.

A small, similarly constructed outbuilding stands to the south of the cottage, across the entrance road, situated at right angles to the road and featuring a single, narrow door on its north side. The scene is particularly picturesque when viewed from the main Glenshane Road, demonstrating how the buildings blend well into the landscape as a good example of a vernacular group.

The dwelling, along with a group of nearby former dwellings and outbuildings (excluding a two-storey house), are depicted on the 1832 Ordnance Survey map, Sheet No. 24. While the interiors have been altered, the group has survived remarkably well, without the intrusion of modern agricultural buildings. The windows were replaced in the 1950s.