St Marys RC Church, Aghabrack, Lisnaragh Road, Donemana, Strabane, Co Tyrone, BT82 0SD

St Mary's Roman Catholic Church at Aghabrack, located on the east side of Lisnaragh Road in Donemana, dates from 1897 and was remodelled around 1940.

The church follows a cruciform plan with the nave aligned north-south. Double-height transepts project to east and west, while a bowed bay containing the sanctuary occupies the north end, flanked by a sacristy and store to the east. An entrance porch stands at the south gable, with a secondary entrance porch set into the west re-entrant angle between the nave and transept.

The walls are roughcast rendered with a projecting chamfered plinth and stepped angle buttresses featuring offsetting and gablets. Pitched natural slate roofs are detailed with blue and black clay ridge tiles, saddle-back stone verges with corbelled kneelers and intermediate kneelers, and Celtic-cross finials. Ogee-profile cast-iron rainwater goods are supported on a projecting eaves course with paired corbels.

Windows throughout are Gothic stained glass lancets contained within rebated stepped block-marked surrounds with splayed cills. The principal south elevation contains a single window to left and right, each diminished in height. This elevation is abutted at centre by a single-storey lean-to entrance porch surmounted by a central rose window contained within a rebated surround and hoodmould with label stops. A Celtic-cross finial crowns the porch apex. The entrance porch doors are double-leaf vertically-sheeted timber, accessed by a single concrete step, with matching doors on the right cheek.

The south elevation includes a central wall-head dormer containing a window and blank oculus above. The west elevation is abutted at left by a double-height gabled transept. The exposed right section contains three paired windows each divided by a buttress, while the exposed left section holds a single window. The transept's west gable contains three windows surmounted by a blank quatrefoil with a recessed blank trefoil above. The left cheek of this transept features two windows divided by a central buttress. A single-storey lean-to porch abuts the re-entrant angle at the west, with paired diminished windows on its south elevation and a single-leaf vertically-sheeted timber door on the west gable, accessed by a concrete ramp.

The north gable is abutted at centre by a lower apse with a conical natural slate roof. The exposed section contains single windows to left and right with a recessed blank trefoil at the apex.

The east elevation is abutted at right by a double-height gabled transept. A pitched extension containing the sacristy projects from the north elevation of this transept, detailed as the nave with a pitched natural slate roof and chimney to the east gable. The extension's east elevation contains a single replacement uPVC window at left, while the north elevation has two replacement timber doors accessing the store. The west gable displays a painted pointed-arched vertically-sheeted timber door, accessed by two concrete steps.

The church sits on an elevated site with a graveyard to the south-east containing twentieth-century grave markers. The site is bounded to the east by random rubble walling. The entrance to the south comprises an alcoved opening with vehicular and pedestrian accesses flanked by square-plan smooth-rendered piers with chamfered corners, copings, and ball finials supporting cast-iron gates.