St. Columba’s Church of Ireland, Church Street, Omagh, Co. Tyrone, BT78 1DG

St. Columba's Church of Ireland is a triple-height Gothic church built between 1863 and 1871 to designs by architect J. E. Rogers of the Church Commissioners in Dublin. It is located on the east side of Church Street in Omagh.

The building comprises a rectangular nave facing west, flanked by catslide aisles and lower transepts to north and south. A three-stage tower with spire projects to the north, with a double-height gabled porch on the south side. The chancel to the east is lower in height and has a lean-to shed to its north; a lean-to vestry stands to the east of the south transept.

The roof is pitched natural slate with angled blue and black clay ridge tiles and stone-coped verges. Metal ogee gutters are mounted on timber rafter feet. A blocked stone chimney stack rises from the north elevation of the vestry.

The walls are constructed of random coursed basalt with dressed sandstone quoins. All windows are Gothic stained glass with splayed sandstone surrounds. Doors are gothic vertically sheeted double-leaf with wrought-iron strap hinges and quatrefoil plate tracery tympana surmounted by hoodmoulds.

The principal west gable has a splayed plinth and contains five cusped lancets in gabled surrounds, divided by cusped colonettes and surmounted by a Geometric tracery window with hoodmould and splayed sill course. The apex carries a quatrefoil with hoodmould.

The tower has angled buttresses with offsetting and splayed moulded stringcourses above each stage. The first and second stages each have two windows. The third stage features Gothic plate tracery with cusped columns flanked by Gothic stone-louvred openings with cinquefoils above, on all elevations except the south which is blank. The broach spire is decorated with banding and abuts the church to the south.

The porch has angled buttresses with offsetting. Its gable contains a door with a bipartite lancet above; the left cheek has a single door; the right cheek is abutted by the aisle and is blank.

The south aisle contains two windows. The south transept gable is symmetrical, with two bipartite double-height windows with trefoils above, flanked by single windows on each side. The apex carries an octafoil with plate tracery. The left cheek is partly abutted by the aisle, with a single cusped window in the exposed section; the right cheek is abutted by the vestry and is blank.

The vestry east elevation has a square-headed casement with splayed surrounds and two windows. A shoulder-headed vertically sheeted door with wrought-iron strap hinges is positioned to the left of these windows; the right cheek is blank.

The north transept is detailed as the south transept, with windows on both cheeks. The north aisle is three windows wide.

The chancel cheeks are blank, and its gable contains square and snecked walling with a single Geometric tracery window with hoodmould and trefoil above.

The church is set back from the road on an elevated site, bordered by decorative cast-iron railings on a splayed stone plinth. Lawns lie to north and south, with a rubble stone boundary wall to the south. A modern former rectory stands across Church Street to the west.