Cae-efa-lwyd-fawr is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 21 July 2000. House. 1 related planning application.
Cae-efa-lwyd-fawr
- WRENN ID
- eastward-cellar-storm
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 21 July 2000
- Type
- House
- Address
- Cae-efa-lwyd-fawr, Penygroes, Caernarfon, Llanllyfni, LL54 6PB
- OS grid reference
- SH 461 530
- Coordinates
- 53.05226, -4.29711
- Source
- Cadw listing
Description
Cae-efa-lwyd-fawr is a 19th-century building constructed from roughly coursed rubblestone, featuring large quoins and slate lintels above the windows. It has a slate roof with integral end stacks, the left stack being more substantial and equipped with slate drips, along with coped verges. The building is two storeys high, with single-storey gabled ranges at the rear and to the right, creating a rough L-plan. The front has three windows, with the center window being blind, and all windows on both floors have glazing bar sashes, although they were sheeted over at the time of the survey. There is a central entrance that leads through a 20th-century lean-to porch. The rear and right ranges also feature integral end stacks.
Inside, the building has a simple layout with large open fireplaces that have timber lintels in the ground-floor rooms. The interior includes a plain early 19th-century dog-leg staircase with a ramped handrail, closed string, and stick balusters. The floors are made of slate, and there are plank doors. Additionally, there is a copper stack in the right range.
Local climate
Cae-efa-lwyd-fawr sits in one of the wettest parts of the UK, with an average of 1,370 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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 — 2 transactions since 1998
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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