Capel Isaf is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 17 February 1997. Chapel.
Capel Isaf
- WRENN ID
- tattered-steeple-sepia
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 17 February 1997
- Type
- Chapel
- Address
- Capel Isaf, Dolwyddelan, Conwy
- OS grid reference
- SH 737 521
- Coordinates
- 53.05129, -3.88467
- Source
- Cadw listing
Description
Capel Isaf is a square chapel built from rubble, featuring a half-hipped slate roof. The northwest side, which serves as the entrance, has arched outer entrances with recessed boarded doors and segmental fanlights. These entrances are flanked by a pair of tall arched windows that have multi-pane sashes with marginal glazing. The southeast side has three tall, square-headed, 12-pane recessed sashes, also with marginal glazing; the left window has only the upper half visible, as the lower half is obscured by a single-storey lean-to extension that is glazed. The southwest upper wall is partially rendered and has weathercoursing where the chapel connects to the manse. This building was not available for inspection at the time of the survey in October 1996.
Local climate
Capel Isaf sits in one of the wettest parts of the UK, with an average of 1,260 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 89% of listed buildings.
It experiences an average of 49 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 30 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
- Sale history — 3 transactions since 2001
- 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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