Siop Gwallt is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 28 July 1989. House.
Siop Gwallt
- WRENN ID
- former-quoin-crow
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 28 July 1989
- Type
- House
- Address
- Siop Gwallt, 4 Ala Uchaf, Pwllheli
- OS grid reference
- SH 373 351
- Coordinates
- 52.8888, -4.41891
- Source
- Cadw listing
Description
Siop Gwallt is a three-storey building with a two-window rubble front, topped by a slate roof and featuring a red brick chimney stack. The windows are modern and recessed, with small top-opening casements. The building has a Victorian shop front that includes panelled pilasters, a ramped fascia, and end brackets. A central half-glazed door is flanked by plate glass windows, and there is a high tiled stallriser with a blue tile plinth band. The rubble gable end slopes backwards.
Local climate
Siop Gwallt sits in one of the wettest parts of the UK, with an average of 1,670 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.
It experiences an average of 4 freeze-thaw cycles a year, fewer than 98% of listed buildings. Of these, 1 follows 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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