Y Bwthyn is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 26 May 1995. Administration block.
Y Bwthyn
- WRENN ID
- tangled-garret-pine
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 26 May 1995
- Type
- Administration block
- Address
- Y Bwthyn, Hywel Dda, Brithdir and Llanfachreth, Gwynedd
- OS grid reference
- SH 831 245
- Coordinates
- 52.80567, -3.73548
- Source
- Cadw listing
Description
Y Bwthyn is a one-and-a-half storied building constructed of rubble, featuring an old slate roof. It has a rectangular plan, with the gable facing the road having canted sides and a half-hipped roof. There is a central stack with plain capping and weather-coursing. The road-facing side includes a central, recessed slate tariff plaque with a 4-pane casement window above it. There are similar flanking windows on the ground floor, with the left window having 2 panes, and further 4-pane windows on the sides. A later porch has a boarded door facing the road on the northeast side, along with a flat-roofed dormer that contains a window similar to those previously mentioned. At the rear, there is a single-storey modern extension.
Local climate
Y Bwthyn sits in one of the wettest parts of the UK, with an average of 1,250 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 53 freeze-thaw cycles a year, more than 93% of listed buildings. Of these, 32 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 5 transactions since 1999
- 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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