5 Corbally Road, Aldergrove, Crumlin, Co Antrim, BT29 4EB

5 Corbally Road, Aldergrove, Crumlin, Co Antrim was a single-storey vernacular dwelling with gabled ends, set back from Corbally Road at the end of a lane in a rural setting. The building stood until its dismantling after 22 June 2004.

The house was constructed of rubble masonry with rough cement render applied to the external walls (added in 1996 or 1997). The roof was covered with corrugated iron sheeting set between raised gable copings of cement render, with a single small chimney at an intermediate ridge position in smooth cement render and no rainwater goods. A small projecting porch with cement-rendered walls and corrugated iron roof of very low pitch was positioned at the entrance on the north elevation, with wooden fascias.

The north elevation featured a rectangular porch with a ledged timber door in wooden frame on its east side and a small window with rectangular timber fixed light of translucent glass on the north side. The house itself had one window in the north elevation to the right of the porch: a rectangular metal 2-pane fixed light with 2-pane side-hung opening vent and projecting concrete cill. The south elevation had two similar windows with rectangular metal 6-pane fixed lights with 6-pane side-hung casements and projecting concrete cills. The gables were blank.

The building's most significant feature was a rare 17th century full cruck roof truss of the English type, comprising two continuous blades. This form of construction survives in only seven or eight examples in Northern Ireland. The truss was removed to the Ulster Folk and Transport Museum at Cultra, Co Down after dismantling.

The property appears on the Ordnance Survey map of 1832–33 and is recorded in the second valuation of circa 1860, possibly as the dwelling occupied by George Whiteside with Margaret McGivern as immediate lessor and a rateable value of 10 shillings. The date of construction is uncertain but experts have suggested a late 17th century date based on the antiquated roof structure. The porch was added in the 1940s, and corrugated sheeting was placed over the previously thatched roof in the late 1960s. A new replacement house was built close by to the east, and a temporary dwelling stood to the north-west.