Buarthau is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 25 November 1998. House.

Buarthau

WRENN ID
keen-porch-solstice
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
25 November 1998
Type
House
Address
Buarthau, Berdd-Lwyd, Porthmadog, Beddgelert, Gwynedd, LL55 4NL
OS grid reference
SH 624 476
Coordinates
53.00858, -4.05116
Source
Cadw listing

Also on this page: sale history · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Buarthau is a house constructed of rubble, with the house section whitened and featuring a slate roof with a tiled ridge. It has squat end chimneys with weathercoursing. The entrance is near the center and has a modern boarded stable door. To the left, there is a 19th-century nine-pane part-opening casement window, and to the right, a 19th-century 12-pane unhorned sash window. On the first floor, there are small contemporary windows, with a 9-pane casement to the left and a 4-pane casement to the right. Adjacent to the right gable, there is a ruined 19th-century mono-pitched, single-storey block that once housed a wheel pit between it and the house.

The stable section features an open entrance to the right with an exposed timber lintel, and a small blocked window to the right. At the rear of the range, there is a contemporary rubble dairy outshut in the center, which has two boarded doors on the right return and a shuttered window at the front. A later 19th-century lean-to addition is attached to the left, which includes a squat chimney on the left and modern window and door at the front. The stable's rear has an open upper loading bay, and its gable end has a ruinous lean-to addition. The interior was not inspected during the survey.

Local climate

Buarthau sits in one of the wettest parts of the UK, with an average of 1,500 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 98% of listed buildings.

It experiences an average of 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 16 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
  • Sale history — 1 transaction since 2015
  • 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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