Felin Marlais is a Grade II listed building in the Carmarthenshire local planning authority area, Wales. First listed on 13 September 2002. Mill.

Felin Marlais

WRENN ID
bitter-lime-pine
Grade
II
Local Planning Authority
Carmarthenshire
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
13 September 2002
Type
Mill
Address
Felin Marlais, Brechfa, Llanfihangel Rhos-Y-Corn
OS grid reference
SN 518 311
Coordinates
51.95921, -4.15767
Source
Cadw listing

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

Description

Felin Marlais is a 2-storey, 2-window former mill built from whitened rubble stone and topped with a slate roof. The openings are offset to the left of center and feature wooden lintels on the lower storey. There is a central wide opening that contains a narrow boarded door with a small-pane window to its right. To the right of the doorway is another small-pane window, while to the left is a 2-light small-pane casement window. On the upper storey, there are 2 small-pane windows located beneath the eaves. Additionally, there is a small opening under a flat arch at the lower right. The right gable end is covered in corrugated iron above a former rubble-stone lean-to and includes an inserted small-pane window in the gable. Attached to the left gable end is a lower projection that aligns with a 2-light small-pane casement window. The building has not been inspected.

Local climate

Felin Marlais 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 92% of listed buildings.

It experiences an average of 35 freeze-thaw cycles a year, more than 54% of listed buildings. Of these, 17 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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  • 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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  4. Castle Green Grade II 1.1 km
  5. Brechfa House Grade II 1.3 km
  6. Stables and coach house at Brechfa House Grade II 1.3 km
  7. Pont Cwmmawr-du Grade II 2.3 km
  8. Pant-y-Bettws Grade II 4.4 km
  9. Church of St Michael Grade II 4.7 km
  10. Maes-y-Bidiau Grade II 4.9 km