Coach-house at Grawen Farm is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 16 June 2003. Coach-house. 1 related planning application.

Coach-house at Grawen Farm

WRENN ID
peeling-screen-snow
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Merthyr Tydfil and Aberdare MP: Gerald Jones (Lab)
Country
Wales
Date first listed
16 June 2003
Type
Coach-house
Address
Coach-house at Grawen Farm, Cwmtaf, Merthyr Tydfil, Vaynor, CF48 2HS
OS grid reference
SO 015 111
Coordinates
51.79022, -3.4289
Source
Cadw listing

Also on this page: EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

The coach-house at Grawen Farm is a lofted structure built from rubble stone, topped with a slate roof that has close eaves. The front features two large coach entries, each with stone voussoirs supporting cambered heads. Above these entries, there are two pairs of casement windows with stone sills positioned directly above the arch voussoirs. On the right end wall, there are stone outside stairs leading up to a loft door, which also has stone voussoirs.

Local climate

Coach-house at Grawen Farm sits in one of the wettest parts of the UK, with an average of 1,270 mm of rain a year. This makes it wetter than 94% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 54 freeze-thaw cycles a year, more than 94% of listed buildings. Of these, 30 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.
  • No sale records on file
  • Related listed building consents — 1 application
  • 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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Nearby listed buildings

  1. Barn at Grawen Farm Grade II 22 m
  2. Grawen Farmhouse Grade II 26 m
  3. Stable at Grawen Farm Grade II 33 m
  4. Milestone on A470 near Dan-y-graig Grade II 405 m
  5. Llwyn-on Reservoir dam, including valve house and spillway, (partly in Vaynor Community) Grade II 481 m
  6. Llwyn-on Reservoir dam, including valve house and spillway (partly in Hirwaun community) Grade II 485 m
  7. Bridge over Nant Aber-nant stream Grade II 1.2 km
  8. Milestone on A470 near Wyrlod-ddu Grade II 2.1 km
  9. Milestone on A470 S of Pont Llysiog Grade II 2.7 km
  10. Ffrwd Uchaf Farmhouse and attached outbuilding Grade II 2.9 km