Alltgochymynydd is a Grade II listed building in the Ceredigion local planning authority area, Wales. First listed on 19 September 1997. House.
Alltgochymynydd
- WRENN ID
- mired-pewter-willow
- Grade
- II
- Local Planning Authority
- Ceredigion
- Constituency
- Ceredigion Preseli MP: Ben Lake (PC)
- Country
- Wales
- Date first listed
- 19 September 1997
- Type
- House
- Address
- Alltgochymynydd, Cwm Tynant, Aberystwyth, Ceulanamaesmawr
- OS grid reference
- SN 707 881
- Coordinates
- 52.47562, -3.90458
- Source
- Cadw listing
Description
Alltgochymynydd is a two-storey building constructed from whitewashed rubble stone and topped with a steep-pitched slate roof, featuring larger stone stacks at the left end. The front is irregular and long, with a two-unit plan. On the first floor, there are two widely separated pairs of casement windows positioned under the eaves. The ground floor has a pair of casement windows to the right, which align with the window above. There is an off-centre ledged door, followed by another casement pair set to the right of the window above, and a very small fire-window. The windows are adorned with stone slab lintels. At each end of the property, there are ruined stone outbuildings. At the rear, there is a centrally located lean-to roofed with slate, and no outshut is present.
Local climate
Alltgochymynydd sits in one of the wettest parts of the UK, with an average of 1,290 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 92% of listed buildings.
It experiences an average of 35 freeze-thaw cycles a year, more than 57% 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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