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
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.
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- No EPC on record for this property
- No sale records on file
- No related consent applications matched
- 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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