Gilfach is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 19 October 1971. House.
Gilfach
- WRENN ID
- haunted-terrace-fern
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 19 October 1971
- Type
- House
- Address
- Gilfach, Cwm Pennant, Dolbenmaen, Gwynedd
- OS grid reference
- SH 526 468
- Coordinates
- 52.99898, -4.19638
- Source
- Cadw listing
Description
Gilfach is a two-storey building with an attic, constructed from local rubble stonework and topped with a slate roof. It features three bays, with a central door that has a plain overlight; this door was replaced in the 1930s. The ground floor has early 19th-century iron windows with 20 panes, where the central four panes are hinged, while the upper floor has 16-paned hornless sash windows, all of which are adorned with stone lintels. There is a blocked window at the southern end of the ground floor, and a small window in the gable provides light to the attic. The building has tall gable end stacks with drip ledges. It is connected to a modernised outbuilding on the left (south) end, which features an iron waterwheel on its gable end, and there is an additional single-storey cross range at the northern end, also modernised.
Local climate
Gilfach sits in one of the wettest parts of the UK, with an average of 1,550 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 20 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 8 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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