St Patrick's RC Church, Church Road, Castlederg, Co Tyrone, BT81 7XZ

St Patrick's Roman Catholic Church is a detached double-height building constructed around 1840, situated on the north side of Church Road in Castlederg. The church comprises a rectangular-plan nave with a three-stage tower at the east end and a single-storey sacristy at the west.

The roof structure consists of pitched natural slate with blue and black clay ridge tiles, saddleback stone verges, and cross-gabled ends. Cast-iron rainwater goods with ogee profile moulding are supported on a Lombard frieze.

The walls are rendered smooth with stepped masonry quoins and a projecting chamfered plinth. Windows throughout are pointed-arched-headed with Y-tracery and chamfered mullions, fitted with stained glass and external secondary glazing contained within stepped chamfered surrounds with moulded hoodmoulds and label stops. Cills are splayed and moulded.

The principal elevation faces east and is interrupted at its centre by the three-stage tower. Exposed sections either side contain stained glass oculi within smooth rendered surrounds surmounted by hoodmoulds with label stops. The tower walls are constructed of roughly coursed squared-and-snecked rubble with angle buttresses and offsetting. Entrances are positioned at both north and south elevations as rebated pointed-arched-headed openings with hoodmoulds and label stops, containing replacement double-leaf timber sheeted doors and stained glass fanlights. The south entrance is surmounted by a blank stone shield plaque, now with its central panel or datestone removed. The second stage of the tower contains a keyed oculus with lattice glazing on each elevation. The third stage displays paired pointed-arched-headed timber louvred belfry openings on each elevation. The tower terminates with a parapet featuring three carved merlons on each elevation; the central merlon is topped with a stone carved Celtic cross, while flanking merlons contain pointed-arched-headed panels.

The south elevation is five windows wide. The west gable is abutted at its centre by the single-storey sacristy, which is detailed as the nave. The exposed gable section contains two pointed-arched-headed louvred openings and a cross finial to the apex. The sacristy features stained glass pointed-arched-headed windows throughout unless otherwise stated. Its south elevation contains an entrance at the left and a pointed-arched-headed stained glass window at the right. The entrance comprises a replacement timber sheeted door within a stepped surround and hoodmould, accessed by three masonry steps. The sacristy's west elevation is blank; the north elevation contains two windows. The north elevation of the church is five windows wide.

The site is set in a roadside location with the church graveyard to the north, bounded at the south by a roughcast rendered wall with moulded saddleback coping. Pedestrian access is provided at the west via a wrought-iron gate supported on square smooth rendered piers with saddleback coping. Vehicular access at the east consists of a cast-iron gate supported on smooth rendered and chamfered octagonal piers with pointed octagonal caps.

A stone font is located at the south-east corner of the site. A car park and former outbuildings are situated to the south of Church Road. An outbuilding at the west features rubble stone walls with dressed stone quoins, two circular openings on east and west elevations, and a natural slate roof; the east elevation retains original metal circular windows. This outbuilding is accessed by plainly detailed cast-iron gates mounted on concrete piers.