Church of Saint John is a Grade II* listed building in the Conwy local planning authority area, Wales. First listed on 9 September 1994. Church.

Church of Saint John

WRENN ID
sacred-bailey-martin
Grade
II*
Local Planning Authority
Conwy
Constituency
Clwyd North MP: Gill German (Lab)
Country
Wales
Date first listed
9 September 1994
Type
Church
Address
Church of Saint John, Old Colwyn
OS grid reference
SH 869 784
Coordinates
53.29058, -3.69749
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The Church of St John is a Perpendicular style church likely dating to the 18th century, with later additions and alterations. It is constructed of local limestone with red sandstone dressings from Runcorn, and has a green slate roof. The church comprises a west tower, a nave with two aisles and a clerestory, and a chancel with an organ chamber and a vestry that functions as a north transept. The tower features angle buttresses, 2-light windows in the lower stage, and paired bell chamber lights above. A semi-octagonal stair turret is located at the southwest angle, and the tower is topped with an embattled parapet. The south aisle has 2- and 4-light windows, and a gabled porch with a deeply moulded arch faces west. The clerestory windows are grouped as 2 and 3 untraceried lights, each with a shallow arched head cut from a continuous wall plate or lintel. The north aisle has a 4-bay design, with a lean-to porch to the west and short, richly traceried windows with hood moulds. A narrower eastern bay has a higher gabled roof, a 2-light window, and paired windows in the upper storey. Shallow pilaster buttresses mark the outer angles of the aisles. The vestry range features paired 2-light, flat-headed windows on the ground floor, and three arched windows above. The chancel has a 5-light east window, a 2-light north window, and the south windows are of varied form, linked by a continuous, stepped hood mould, with clasping buttresses on either side of the gable.

Inside, the plain chamfered west tower arch leads to a 5-bay arcade with octagonal piers. The main arch mouldings and hood moulds spring from moulded caps. Stone wall posts rise from the hood moulds, supporting a complex hammer beam roof in two tiers. The lean-to aisles also have heavy timber roofs. The chancel arch has a hood mould, and a low stone wall carries a wrought iron rail, with a pulpit of linenfold and traceried wood panels on a stone base, positioned to the north. The organ and vestry are located to the north of the chancel. The chancel boasts a wagon roof with curved principal trusses carried on moulded brackets. Choir stalls, likely original to the design, have poppy heads and traceried panels to the bench ends. The reredos, completed in 1931, is a triptych with low relief panels surmounted by flowing, traceried canopy work and a frieze; the remainder of the east wall is panelled with blind Perpendicular tracery. The altar rails, also from 1931, are of wrought iron with gilded wheat stalks on the uprights.

The church contains stained glass, including a depiction of the Transfiguration in the chancel east window, saints figures to the north and south, and a New Testament miracle to the south; none are signed or dated. A south aisle east window from 1914 is by Kempe and Tower, and a pair of windows in the south wall (one dated 1903) were possibly by Ward and Hughes. A west window from 1907 likely originates from the same studio as the aisle windows.

Local climate

Church of Saint John sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 85% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 70% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 63% of listed buildings. Of these, 16 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

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