Cogry Cottage, 51 Bridge Road, Cogry, Doagh, Co. Antrim, BT39 0PS

Cogry Cottage is a detached three-bay one-and-a-half-storey rendered house built around 1845, located on the west side of the Cogry Mills complex in Coagh, County Antrim. Originally known as the Superintendent's House, it formerly served as the residence for the manager of Cogry Mills and was architecturally and functionally linked to Invermuir, the residence of the mill owner, by a flat-headed concrete bridge with ornate cast-iron railings spanning the Doagh River.

The house is rectangular on plan, double-pile in construction, and faces west. It is a three-bay composition organised symmetrically around a projecting central gabled timber-framed porch extension. The south elevation is abutted by a modern lean-to conservatory. The pitched roof is clad in M-profile natural slate with angled blue and black clay ridge tiles, painted timber exposed rafter ends, and carved purlin ends. Dormers are positioned to the front pitch end bays and rear pitch central bay; the rear pitch also has rooflights. The dormers are gabled, double-glazed, and finished with painted timber finials. The projecting porch features fretted bargeboards, rafter ends, and a finial.

The walls are smooth rendered with stone quoins set above a chamfered painted stone plinth. The north gable quoins are finished with diamond-pointed rustication. Windows throughout are square-headed uPVC casements set within painted stone architraves that feature diamond-pointed rustication, decorated key blocks, and sills on brackets. The principal west elevation is symmetrical, with end bays containing double-height canted bay windows topped by hipped natural slate roofs and fretted painted timber rafter ends. Between floors on the projecting bay is a projecting cornice with diagonally sheeted painted timber panels set within stop-end-chamfered timber frame construction. The first-floor windows are painted timber casements; ground-floor windows are replacements. The right cheek is detailed similarly to the left, but the left cheek includes a replacement entrance door. The north gable has four first-floor windows with wrought-iron strapwork at the left apex. The rear east elevation has two windows with floor-level sills in the left bay, a simple window to the centre, and a timber vertically sheeted door and window to the right bay, all with stop-ended chamfered reveals. The south gable has four first-floor windows. Moulded uPVC gutters run throughout.

The coach house to the north is a three-bay single-storey structure built around 1890, constructed in polychrome brick with attached nineteenth-century stone outbuildings. It has a pitched replacement uPVC sheeted roof. Windows are round-headed painted timber 2/2 sashes, and doors are elliptical arch-headed painted timber vertically sheeted double-leaf doors. The gablet features an oculus with moulded brick surround containing a star-shaped etched stained glass insert.

Historical records indicate the cottage was cited as Coggrey Cottage on the 1857 Ordnance Survey map and described in the 1859 Valuation book as the Superintendent's House, measuring 13 yards by 10 yards with one storey plus attic. An 1888 engraving of Cogry Mills shows the house from the southwest, depicting a conservatory abutting the entire ground-floor south elevation and a single-storey lean-to central entrance porch with flanking bay windows also shown with lean-to roofs. Chimneystacks are visible to the north and south gables, and the two front dormers appear in their current position. The 1921 Valuation describes it as a rubble masonry building with slate roof measuring 44 feet by 34 feet by 16 feet high, noting a porch in the middle of the west elevation measuring 7 feet by 6 feet by 16 feet high, and a glazed timber extension to the south gable measuring 32 feet by 8 feet by 10 feet high. No bay windows were shown on the west elevation in the 1921 record. The house appears to date to the establishment of the mill in 1845, with the porch being a later addition. It was likely substantially refurbished sometime after 1921 with the raising of the porch and insertion of the bay windows. The modern conservatory on the south gable is a more recent addition replacing the original.

The coach house does not appear on the 1857 map or in the 1859 Valuation, but is described in the 1921 Valuation as a brick structure with a slated and glazed roof measuring 44 feet by 34 feet by 16 feet. Its west elevation is aligned north-south with a rubble masonry building measuring 28 feet by 12 feet by 10 feet; the 1859 Valuation notes a 24-foot by 21-foot building at this location, suggesting the masonry structure may date from the 1840s when the mill was established. The brick construction with yellow brick trim suggests a late nineteenth or early twentieth-century date, possibly around the early 1890s when the mill underwent major development, as evidenced by identical yellow brick eaves detailing.

The house and coach house are situated on an elevated site with the cottage facing west toward the bridge spanning the Doagh River. The outbuildings of Cogry Mills border the rear patio, with the main mill complex to the northeast. The house, outbuilding, pedestrian bridge, and railings are listed together as a distinct architectural group with well-preserved exterior and interior detailing that forms a coherent ensemble with the mill owner's house, the mill, and various ancillary buildings associated with the Cogry Mills complex.