Church of St Dyfan and St Teilo is a Grade II* listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 18 September 1962. House.

Church of St Dyfan and St Teilo

WRENN ID
open-paling-soot
Grade
II*
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
18 September 1962
Type
House
Address
Church of St Dyfan and St Teilo, Merthyr Dyfan, Barry
OS grid reference
ST 114 694
Coordinates
51.4172, -3.27413
Source
Cadw listing

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

Description

The Church of St Dyfan and St Teilo is a Grade II* listed building constructed from grey rubble with red stone quoins and bathstone dressings, topped with slate roofs. The west tower is square and unbuttressed, featuring a shallow staircase projection to the north and a castellated parapet supported by corbels, divided into four stages. A steeply-pitched gabled south porch has a Gothic arch, stone benches, and a window on the east side. To the left of the porch is a window with a cusped head and a square hoodmould, while to the right are a window with two cusped lights (also with a square hoodmould) and another window further to the right. The north elevation of the nave includes a two-light window to the west and a single light window to the east. The chancel features two lancet windows on the south side and a high two-light window on the east side.

In the churchyard to the south of the church, there is the base of a medieval churchyard cross, which consists of a square socket on a base of two square steps.

Inside, the church has a chamfered chancel arch and a 15th or 16th-century arch-braced roof. A Gothic wooden reredos was added in 1933, and the original medieval altar slab was replaced in 1974.

Local climate

Church of St Dyfan and St Teilo sits in a wetter-than-average part of the UK, with an average of 1,090 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.

It experiences an average of 17 freeze-thaw cycles a year, fewer than 83% of listed buildings. Of these, 6 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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  6. Barry Municipal Buildings and Library Grade II 1.3 km
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