Bangor Abbey Parish Church of Ireland, Newtownards Road, Bangor, Co Down, BT20 4BW

Bangor Abbey Parish Church of Ireland is a double-height Gothic Revival church built around 1830, with a cruciform plan and a 15th-century tower crowned by a spire added in 1693. It stands off Newtownards Road, adjacent to the former gate lodge to Bangor Castle and St Malachy's Wall. The church is of exceptional historical significance: according to the Annals of Ulster, a monastery was founded on this site in the 550s by St Comgall, and it became a celebrated centre of Christian learning, attracting students from across the world. Bangor Abbey is one of only four places in Ireland depicted on the Hereford Mappa Mundi, completed around 1300. The site has seen continuous religious occupation across more than fourteen centuries, with several distinct phases of building and rebuilding.

Externally, the church has a pitched natural slate roof with clay ridge tiles, rendered walls finished in fine dry dash, and two-stage diagonal buttresses with a projected string course at plinth level to the main body. The tower is built of exposed random rubble masonry with dressed stone to the spire. Windows are principally Gothic in character, with sandstone surrounds, hood mouldings, and Y-tracery. The transept openings are Tudor-arched with intersecting tracery. The tower and spire form a striking composition: the square tower base rises to a balustraded parapet with quatrefoil details at the cardinal points and pyramidal pinnacles at the corners, from which a tall octagonal spire ascends. Gothic openings with stone surrounds and weathered keystones sit at the base of the spire on each cardinal point, incorporating louvred vents; above these are two quatrefoil lights on each face, diminishing toward the pinnacle, which is spherical. A mounded string course marks the impost level.

The principal elevation faces west. The entrance is centrally placed on the west face of the tower, set within an elliptical sandstone surround with mould-stops and a carved figured keystone. The primary door is timber-sheeted, painted black, with strap hinges and ironmongery picked out in gold. Above the door is a gothic window with cusped Y-tracery, and figurative carvings appear at both the door and window head. A clock face is positioned at high level above. A modern ramped access ramp sits in front of the tower, with a substantial buttress to the right of the entrance. To the north face of the tower, external stone steps provide access to the upper sections, again with a clock face at high level. To the south face, a single-storey lean-to addition abuts the tower, with a lancet and arched opening above. The east face of the tower is abutted by the double-height nave, which has an arched window above.

The north elevation is abutted by a single-storey flat-roofed Tudor-style extension built around 1990, with three windows above at nave level. To the left is a double-height gabled transept with two-stage diagonal buttressing and a centrally placed transept window with a louvred lancet opening above. A single-storey extension abuts the west face of the transept, and a single-storey gabled porch forming a secondary entrance abuts the east face, accessed by six stone steps with modern handrails and with a single window opening to the left. The east-facing rear gabled elevation is abutted by a modern replacement gabled chancel built around 1960, with a louvred lancet opening at the apex and gothic tripartite windows to each side. The south elevation broadly mirrors the north: the gabled transept is to the right, with a single door to the east face of the transept and a window to the right, and a single window to the west face. Three windows light the nave, and a single-storey lean-to addition partially abuts the left-hand side. Cast-iron ogee-moulded gutters and circular downpipes serve the main building; the modern single-storey addition has cast-iron square-section downpipes with hopper heads.

The rainwater goods are cast iron throughout. Windows throughout are stained glass.

The church sits within a rubble masonry boundary wall enclosing a graveyard with graves dating from as early as 1670. The setting is an exposed one with multiple views on approach. To the south lies a modern hospital complex; the busy Newtownards Road runs to the west; a single-storey church hall sits immediately to the north; and to the east is Castle Park, with mature woodland and open grassland.

The historical layers embedded in this site are remarkable. The monastery founded by St Comgall in the 550s became famous for scholarship and manuscripts — most notably the Bangor Antiphonary, now held in the Ambrosian Library in Milan. After Viking raids diminished the monastery's importance in the 9th century, it was restored in the 12th century by Abbot Mael Maedoc Ua Morgair, later known as St Malachy, who introduced the Augustinians to Bangor. The present tower, constructed of greywacke with Scrabo sandstone dressings, probably dates from around the mid-15th century, when the Augustinian community was taken over by a Franciscan abbot — though there is scholarly dispute about whether the community became Franciscan at this point or remained Augustinian until dissolution. The abbey was dissolved in 1542 and burned during Sir Thomas Smith's attempted colonisation of the Ards in 1572.

On the accession of James I, the lands including Bangor were granted to Sir James Hamilton, whose memorial — by the sculptor Peter Scheemakers — is situated in the south transept. Hamilton rebuilt the abbey as a parish church, with work beginning in 1617 and completed in 1623, incorporating parts of the earlier building. Raven's 1625 plan of Bangor depicts the newly rebuilt parish church as a simple nave with a tower attached. The tomb of the master mason William Stennors, who was responsible for this rebuilding, can be seen at the entrance to the vestry. The tower is largely 15th century, but its upper portion was raised or rebuilt when the spire was added in 1693. Two inscriptions inside the tower record this: on the north, "This steeple was raised anno 1693 IO BLACKWOOD IO CLEELAND Church wardens," and on the south, "Francis Anesly ivner gave toward y raising of this steeple 5 pounds 1693." The west tower arch was blocked and a door and window inserted, also in 1693.

In 1832, attempts to enlarge the church so badly disturbed the foundations through injudicious excavation that the main body had to be taken down entirely — with the exception of the tower — and rebuilt. A new church in the later style of English architecture was erected the following year at a cost of £935, funded by the parishioners and contributions from local landowners. The chancel and transepts were added in 1844, the architect most likely being William Farrell, then architect to the Board of First Fruits. When the new parish church of Saint Comgall was built in 1882 — a response to Bangor's growth as a resort and commuter town — the Abbey was largely abandoned, though it was restored and reopened in 1917. That restoration included the removal of a gallery above the entrance door, enlargement of the doorway from the porch into the main body of the church, the erection of a screen porch behind the front doors, the reopening of an old doorway in the tower to form a vestry entrance, and the repositioning of headstones and memorials. In 1941, Bangor parish was divided and Bangor Abbey became a parish church once again.

A major renovation programme in 1960–61 saw the church re-roofed and re-floored. The chancel was extended and the east window replaced by a mural by the artist Kenneth Webb. The ceiling over the crossing was raised, the floor of the south transept was lowered to provide additional seating, and the organ was moved to the rear of the church. These works resulted in the loss of much of the original historic internal fabric. Small additions were made around 1995 under the supervision of Hobart and Heron.

A number of medieval stone coffin lids survive at the church. A fragment of rubble walling dating from the early 13th century stands to the north-east of the church; this was formerly part of one of the conventual buildings of the abbey and is shown on Raven's 1625 map of Bangor.