Berthlwyd is a Grade II listed building in the Merthyr Tydfil local planning authority area, Wales. First listed on 20 February 2003. Farmhouse.
Berthlwyd
- WRENN ID
- quiet-paling-cream
- Grade
- II
- Local Planning Authority
- Merthyr Tydfil
- Constituency
- Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
- Country
- Wales
- Date first listed
- 20 February 2003
- Type
- Farmhouse
- Address
- Berthlwyd, Quakers Yard, Treharris, CF46 5BS
- OS grid reference
- ST 097 960
- Coordinates
- 51.6561, -3.30569
- Source
- Cadw listing
Description
Berthlwyd is a farmhouse featuring a long front range, rendered with 20th-century uPVC windows and imitation slates. It has three chimneys and an added crosswing to the left. The layout includes one bay between the crosswing and the first chimney, two bays between the first and second chimneys, and one bay between the end chimneys. There is a lower outbuilding to the right. The first bay of the main house has a 20th-century porch in the angle that obscures a ground floor window. The crosswing has a painted rubble stone front with a later 19th-century paired window on each floor to the left, featuring stone surrounds and 20th-century glazing. The rendered end gable has a chimney.
To the left of the crosswing, there is a cowshed and barn with an asbestos sheet roof. The rear center of the house has a lean-to that was formerly a dairy. The outbuilding on the right also has an asbestos sheet roof, with outside steps on the left leading to a loft door below the sill. The door head breaks the eaves. On the ground floor to the right, there is a small square window with a stone shelf above and a stable door with two stubs of timber above for a presumed pent roof. There is a straight joint to the right and an added section with a small loft window and a second stable door with an iron lintel. Outside steps are present on the end wall.
The interior is not accessible, but it is said to retain 17th-century beams.
Local climate
Berthlwyd sits in a wetter-than-average part of the UK, with an average of 1,160 mm of rain a year. This makes it wetter than 89% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 83% of listed buildings.
It experiences an average of 43 freeze-thaw cycles a year, more than 85% of listed buildings. Of these, 22 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 — 3 transactions since 2001
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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