St. Mark’s Church (C of. I.), Newtownsaville Road, Eskragh, Dunbiggan, Omagh, BT78 2RW

St. Mark's Church of Ireland is a detached double-height church built around 1820, located on the east side of Newtownsaville Road at Eskragh, Dunbiggan, Omagh. It comprises a rectangular nave with a chancel to the east, a canted transept to the north-east with a lean-to vestry abutting it to the west, and a square-plan four-stage tower positioned at the west gable.

The building is constructed of roughly coursed squared-and-snecked rubble with a stugged finish and sandstone quoins. The pitched roofs are covered in natural slate with blue and black clay ridge tiles and stone verges. Rainwater goods are replacement square uPVC items supported on a stone projecting eaves course.

The principal elevation faces west and is centrally abutted by the tower. To the right of the tower, the wall surface is blank; to the left, a stone stairwell aligned east-west abuts the north side of the tower, providing access via a timber sheeted door at first floor level set within a square-headed chamfered surround.

The tower's first stage contains a gothic chamfered sandstone opening with double-leaf vertically sheeted timber doors decorated with strap hinges, and a blind opening above. A single gothic y-tracery fixed window appears on the west elevation and another on the north. The second stage features single square-headed tripartite windows to the south, west and east elevations, each within a projecting chamfered surround with hood mould and label-stops. The belfry stage contains gothic louvred openings at each elevation with hood mould and label-stops. The tower terminates in a crenellated parapet with a central loophole above a dentilled string course.

The north elevation of the nave is abutted by the canted transept, a late Victorian addition. Where the transept meets the nave, a gabled vestry is positioned at the intersecting angle, with its exposed section being blank. The canted transept, chancel and vestry are detailed similarly to the nave, with corbel tables, square profile cast-iron gutters and round downpipes. The walls feature splayed plinths. Windows throughout these sections are gothic metal frame windows with lattice glazing and stained glass margin lights. The transept contains a single window to each cheek. The gabled vestry, which abuts to the right, has a gothic vertically sheeted timber door in a stepped chamfered sandstone surround on its east elevation, and paired gothic windows with chamfered mullion and stepped chamfered sandstone surround on its west elevation.

The west gable is abutted by the chancel. The east elevation of the chancel contains a central geometric tracery window with leaded lattice stained glass and margin lights, set within a stepped chamfered surround with hood mould, label-stops and stone voussoirs over. The south elevation contains paired gothic tracery windows. The north elevation is abutted by the canted transept.

Windows throughout the church are replacement uPVC items with lattice glazing set within gothic plain projecting chamfered surrounds, with projecting masonry cills and stone voussoirs, unless otherwise stated.

The church sits on an elevated site within a churchyard containing nineteenth- and twentieth-century grave markers. The churchyard is bounded to the road by a coursed squared-and-snecked rubble wall with saddle-back coping. Access is gained through an alcoved entrance consisting of square piers with pyramidal coping, supporting a pair of replacement cast-metal gates.