Tan-yr-allt Lodge is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 1 April 1974. Terraced house.
Tan-yr-allt Lodge
- WRENN ID
- idle-thatch-fern
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 1 April 1974
- Type
- Terraced house
- Address
- Tan-yr-allt Lodge, Tremadog, Porthmadog
- OS grid reference
- SH 569 404
- Coordinates
- 52.94249, -4.13069
- Source
- Cadw listing
Description
Tan-yr-allt Lodge is a 1½-storey picturesque lodge built from roughly squared blocks of quarried stone laid in regular courses, topped with a slate roof that features added skylights and barge boards with blind fretwork, along with a central stone stack. The front of the building is asymmetrical with gables and has outshuts that are slightly set back on each side, all under a continuous roof line. The entrance is located on the left side and features a replacement glazed door. In the center, there is a 3-light wood-framed mullioned and transomed window that includes casements, topped by an unmoulded slate hood. The upper storey also has a 3-light window with a similar hood. On the right side, there is a 2-light window with Gothic arched glazing bars. The right side wall includes a 3-light casement window, while the left side wall has a small replacement window and a 1-storey projection at the rear, which contains a boarded door and a 2-light small-pane casement window to its left. The building has not been inspected.
Local climate
Tan-yr-allt Lodge sits in one of the wettest parts of the UK, with an average of 1,490 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 97% of listed buildings.
It experiences an average of 32 freeze-thaw cycles a year, fewer than 60% of listed buildings. Of these, 15 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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