The Old Chapel is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 19 November 1998. Chapel.
The Old Chapel
- WRENN ID
- floating-barrel-vetch
- Grade
- II
- Local Planning Authority
- Brecon Beacons National Park
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 19 November 1998
- Type
- Chapel
- Address
- The Old Chapel, Grwyne Fechan, the Vale of Grwyney, Powys
- OS grid reference
- SO 238 236
- Coordinates
- 51.90597, -3.10871
- Source
- Cadw listing
Description
The Old Chapel is a single-cell chapel dating from the 19th century. It features battered walls made of rubble sandstone, which show traces of limewash, and has a pantile roof with a brick stack added to the left of the center. The south wall includes a Tudor-headed doorway on the left, framed with a stop-chamfer surround and a boarded door. In the center, there is a three-light window that has replaced round-headed lights, likely taking the place of earlier cusped lights. To the right, a segmental-headed priest's doorway has been blocked and converted into a window.
On the east wall, there is a pointed-arched horned sash window that was inserted in 1880, replacing an earlier narrower window. The north wall features a single one-light window set in a dressed stone surround. The west wall has a segmental-headed doorway from 1880, which includes a later half-lit door, and a small lancet window offset to the right below the apex, which has an inserted casement and previously housed the bell.
The roof is constructed with four bays supported by king posts and raking struts, dating from 1880. The interior has been converted for its current use.
Local climate
The Old Chapel sits in a wetter-than-average part of the UK, with an average of 1,020 mm of rain a year. This makes it wetter than 81% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 50 freeze-thaw cycles a year, more than 92% of listed buildings. Of these, 27 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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- 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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