Outbuildings, Mussenden Road, Castlerock, Co. Londonderry, BT51 4RP

Outbuildings at Mussenden Road, Castlerock

A quadrilateral range of multi-bay single and two-storey rubblestone outbuildings built around 1840, forming an enclosed yard as part of the former Downhill Estate. The complex includes a pair of detached single-storey outbuildings within the yard. The buildings are located on the north side of Mussenden Road to the east of Bishop's Gate and the kennel keeper's house, accessed via a slip road enclosed to the road by steel gates.

The outbuildings are constructed of random coursed squared limestone walling with rock-faced limestone ashlar quoins. The roofs are pitched and hipped natural slate with black clay ridge tiles, except where later alterations have been made. Window openings are square-headed with flush limestone lintels and no sills, some containing multi-pane timber casement windows. The two-storey range to the east has had its slate roof replaced with a single pitched corrugated iron roof supported on concrete block to the inner front elevation. The west front elevation features a central shallow breakfront with some enlarged openings, and most window openings have been blocked up. The single-storey north and east ranges retain their natural slate roofs, hipped to the northeast corner and to the south end, with a pair of redbrick chimneystacks to the south of the east range. The roof has collapsed to the north end of the east range. The north range has an A-frame timber truss roof with whitewashed internal walls. The east range has some window openings at the south end formed in redbrick, containing 2/2 timber sash windows. A tall stone wall encloses the south side of the yard with a pair of limestone ashlar piers and wrought-iron gates to east and west.

These buildings formed the farmyard to the Downhill demesne, with part used as domestic accommodation for farm labourers. They were built by Sir Henry Hervey Bruce, the third baronet, who inherited the title and estate in 1836. Ranges forming three sides of a square first appear on the second edition Ordnance Survey map of 1848, captioned 'Farm Yard'. The west, north and east ranges date from around 1840, though the inner buildings and south range do not appear on Ordnance Survey maps until the third edition of 1904. The outbuildings do not appear separately in valuation records until the Annual Revisions of the 1860s, when the caretaker's house and offices on 10 acres of land were occupied by Peter Robertson, later by James Blair, and valued at £1.5s. The valuation rose to £25 in the 1870s, likely indicating the addition of the farmyard buildings to the valuation of the domestic buildings in the group. By 1885 the domestic dwelling and outbuildings were valued separately but remained under the Bruce estate. In 1901 the caretaker's house was occupied by Joseph Neilans, a farm labourer, living with his wife and five children, two of whom worked as a saddler and shirtmaker. The three-room house was designated second class. By 1911 the occupant was William John Elliott, an agricultural labourer aged 50, living with his wife, three children working as general labourers and seamstress, and two boarders aged 10 and 11. The farm buildings remained in the Bruce family until around 1950 but have since passed out of estate ownership.

The complex is in poor condition and no longer in use, with limited access. The upper storey of the main ten-bay two-storey block, which historically featured a gabled centre bay and arched ground floor for wagon storage, appears to have been removed in recent years and replaced with concrete block. Late twentieth-century alterations, particularly to the west range, detract from the architectural interest. Although the buildings are in separate ownership, they form an important part of the Downhill Estate's history and hold group value with other listed structures on the estate. The outbuildings exhibit quality stonemasonry throughout, despite their deteriorated condition.