Exterior
Squat tower to W of present nave: 2 stages, but undivided externally. Triple window in lower stage, and paired foiled lights to bell-chamber (all Cl9); embattled parapet, and weather vane. Present S aisle is flush with tower to the W; early C14 stepped triple lancet window offset in its W wall, and heavy buttresses to W, probably additions. S wall has recut wide chamfered lancet window, and gabled porch with timbering on stone plinth. Scallopped bargeboards to gable, and traceried doors. Paired lancets either side of a wider lancet window E of the porch. A buttress towards the centre of the aisle marks the original limit of the nave, and the separate chancel which is shown in a drawing of 1782 was remodelled in the restoration of 1812. Paired lancet windows and small doorway towards the E. Triple lancet E window. Earlier roofline of northern nave visible on E wall of tower. Extensions obscure westernmost bay of this nave, which is divided by buttresses into 3 bays: recut paired lancet windows, and a recut 2-light traceried window set high in central bay (probably originally over pulpit inside). Similar paired lancets in eastern bay, and one square-headed window of 3 lights which may be an original feature. 3-light Perpendicular window beyond this to N of chancel may also be original. 5-light Decorated E window appears to pre-date the nave, and may have been re-sited, probably from the original single chambered church. Projecting from the N wall of the chancel is a mausoleum, added by William Davies Shipley of Bodrhyddan, Dean of Saint Asaph, in c1820: ashlar, with hipped roof and pilaster buttresses.
Monuments: Three memorial slabs against W wall of nave - one has floriated cross of c1250-80 - the others have early C14 four-circle crosses. In S aisle: 2 mutilated slabs with effigies, both figures of priests, probably early C14. Some at least of these slabs originated at the Dominican Friary at Rhuddlan; inscribed wall memorials in Welsh, dated 1676 and 1710. In the chancel: slab incised with effigy and French inscription, William de Fresney, Archbishop of Rages (Odessa), c.1290 - brought from the site of the Dominican Friary at Abbey Farm; marble wall memorial to William Davies Shipley, d.1836.
Stained Glass: E. windows both probably contemporary with Scott's restoration - both are memorials to members of the Shipley Conwy family. SE window of S aisle dated 1874. N window of sanctuary, by A.J.Davies of the Bromsgrove Guild, 1919 - a memorial to Geoffrey Seymour Rowley Conwy, killed at Gallipoli.