21 Moneybrannon Road, Aghadowey, Coleraine, BT51 4AJ

A detached single-storey rendered dwelling built around 1800, predating 1831. It has a rectangular plan facing west, with the gable end fronting directly onto Moneybrannon Road. The roof is corrugated iron over original straw thatch, with two replacement brick chimneys. The walling is lime-washed rubblestone. The front elevation features three square-headed window openings with concrete sills and single-pane timber sash windows, with a square-headed door opening at the east end fitted with a replacement timber glazed door. UPVC guttering and mesh wire secure the straw thatch.

A linear single-storey extension was added to the north around 1950, built of sheeted asbestos with a shallower pitched roof. This extension runs flush to the front elevation, containing a further three windows and a machinery bay, fitted with steel casement windows. The west gable is lime-washed rubblestone surmounted by a brick chimneystack.

The building stands perpendicular to the road at a lower level, in a sheltered setting with mature trees and hedgerow boundaries. The rear elevation is not visible. The east gable is abutted by the later extension.

Historically, the house was one of two vernacular dwellings arranged linearly with gable ends to the road, with attached outbuildings to the east. Both predate the 1831-2 first edition Ordnance Survey map. By the 1849-52 second edition, an outshot had been added to the rear. At the time of Griffith's Valuation (1856-64), the primary house was leased by John Knox from the Worshipful Company of Ironmongers for £2, with 21 acres of land. The secondary house was sublet to Mary Stewart at 5 shillings. Thomas Knox assumed the main house in 1885 and became owner in fee in 1891, listed in the 1901 census as resident with his sister Letitia. The three-room thatched house was designated second class and remained thatched in 1911. William Roxborough took over in 1917, followed by Ellen Roxborough in 1927. The building currently appears uninhabited.

The later 1950s extension detracts from the vernacular character of the original house, though it retains most of its original external appearance.