Church of St Michael Coslany is a Grade I listed building in the Norwich local planning authority area, England. First listed on 26 February 1954. A Late C14, C15 and early C16 Church. 2 related planning applications.

Church of St Michael Coslany

WRENN ID
swift-keep-acorn
Grade
I
Local Planning Authority
Norwich
Constituency
Norwich South MP: Clive Lewis (Lab)
Country
England
Date first listed
26 February 1954
Type
Church
Address
Church of St Michael Coslany, Oak Street, NR3 3AE
OS grid reference
TG 228 089
Coordinates
52.63297, 1.29143
Source
Historic England listing

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

Description

The Church of St. Michael Coslany is a Grade I listed parish church that is now disused. It dates from the late 14th century, 15th century, and early 16th century. The building is constructed of flint with stone dressings, featuring an ashlar-faced north aisle and chapel, along with brick elements and a slate roof. The church includes a west tower, nave, chancel, north and south aisles, a south chancel aisle, and a north chapel.

The four-stage tower, built around 1425, has diagonal buttresses and a west doorway with a two-centre arch that features carved spandrels and a shield frieze. The doorway is adorned with a two-leaf door, each leaf having three panels of cusped tracery depicting birds and dragons, topped by two figures. Above the door is a four-light Perpendicular window, flanked by niches with vaulted canopies and finials. The tower is capped with a crenellated stone parapet that includes a shield frieze and corner pinnacles.

The nave has four bays, with a three-light Decorated quatrefoil west window and a simple 15th-century south door to the right. The south aisle consists of two bays, while the south chancel aisle has one bay. The south aisle features a brick west wall and three four-light Perpendicular aisle windows with four-centre arches and brattishing on the transoms in the outer lights. The tracery pattern is consistent throughout. The south aisle also showcases flush-work with window and quatrefoil motifs, while the chancel includes an east window from 1883.

The north door is notable for its three orders of mouldings, a central attached shaft, and a four-centre arch with a drip-mould. A lancet window is situated in the chancel arch gable. The interior features four-shaft piers with double order mouldings in diagonals and four-centre arches to the arcades. The springing of the arch in the west bay of the south arcade coincides with the brick west wall. There is blind store arcading in the aisles with attached shafts, a tower arch, and a chancel arch without piers. The nave has a scissor-brace roof, while the aisles have flat roofs with arch-braces springing from wall posts. The chancel features an arch-braced roof with braces forming a pointed arch profile, springing from wall-posts with shield corbels. The Thorp chapel includes a stone open tracery screen and tomb.

Local climate

Church of St Michael Coslany sits in a drier-than-average part of the UK, with an average of 710 mm of rain a year. This makes it drier than 88% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 95% of listed buildings.

It experiences an average of 24 freeze-thaw cycles a year, fewer than 75% of listed buildings. Of these, 13 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.

More on this building

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  • Related listed building consents — 2 applications
  • Detailed attributes — period, style, materials, features
  • Flood risk assessment
  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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