Tafarn-helyg is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 25 February 2005. House.
Tafarn-helyg
- WRENN ID
- veiled-soffit-khaki
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 25 February 2005
- Type
- House
- Address
- Tafarn-helyg, Gellilydan, Maentwrog, Gwynedd
- OS grid reference
- SH 687 396
- Coordinates
- 52.93824, -3.9548
- Source
- Cadw listing
Description
Tafarn-helyg is a house built in a simple Georgian vernacular style, dating from the 18th century. It is two storeys high and features a storeyed wing at the northwest end, along with a single-storey lean-to outbuilding at the left gable. The structure is made of mortared rubble masonry, with large stones used as quoins and lintels. It has a slate roof with overhanging eaves at the northwest gable of the storeyed wing, and stone gable stacks that have dripstones and capping.
The main house faces northeast and has a three-window range, with a wide doorway positioned towards the centre and the openings offset to the right (northwest). The windows are 16-pane hornless sashes with slate sills, and the first-floor windows are located under the eaves. The storeyed wing to the right is aligned with the main house but has a lower roof line. Its doorway is on the left, with a single window on both the ground and first floors; the ground floor window is an equal sash, while the first-floor window is a 9-pane centrally hinged window set under the eaves. The lean-to outbuilding features a single doorway offset to the right. At the rear of the house, there are small 4-paned horned sash windows, and a conservatory has been added against the rear wall.
The interior was not inspected during the survey in July 2003, but the owner reports that it retains exposed beams and joists, as well as a large slate lintel over an inglenook fireplace.
Local climate
Tafarn-helyg sits in one of the wettest parts of the UK, with an average of 1,450 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.
It experiences an average of 36 freeze-thaw cycles a year, more than 60% of listed buildings. Of these, 18 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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