Llwyfan is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 21 October 1998. House.

Llwyfan

WRENN ID
tilted-attic-azure
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
21 October 1998
Type
House
Address
Llwyfan, Myarth, Llanfihangel Cwmdu with Bwlch and Cathedine, Powys
OS grid reference
SO 157 212
Coordinates
51.88363, -3.22582
Source
Cadw listing

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

Description

Llwyfan is a two-storey house built of roughcast rubble stone with a slate roof. It features a stone ridge stack to the right of the center, which defines the gable end of the original house from the byre. The original house has a four-light window with diamond mullions on the left, which once lit the former parlour, along with an inserted door and window to the center and right. In the upper storey, there is an early 20th-century six-pane sash window in the center. The later house to the right has two windows with hornless sashes, a replaced upper right window, and a recently inserted door in an earlier segmental-headed opening. The gable end of the lower house has a blocked loft doorway beneath a timber lintel.

Inside, the original house features a post-and-panel partition with two segmental-headed doorways, which have been re-set against the rear wall. The original fireplace stair is now blocked.

Local climate

Llwyfan sits in a wetter-than-average part of the UK, with an average of 1,100 mm of rain a year. This makes it wetter than 87% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 74% 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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Nearby listed buildings

  1. Farm Buildings at Llwyfan Grade II 21 m
  2. Milestone near Llygadwy Grade II 518 m
  3. Llwynyfedwen farmhouse including attached Byre Grade II 622 m
  4. Barn at Llwynyfedwen Grade II 632 m
  5. Stable at Llwynyfedwen Grade II 637 m
  6. Green Drive Lodge Grade II 924 m
  7. Milestone near Kestrel Inn Grade II 1.1 km
  8. Llangynidr Bridge (partly in Llanfihangel Cwmdu with Bwlch and Cathedine community) Grade I 1.1 km
  9. Gliffaes Fach Grade II 1.2 km
  10. Mowfield Cottage Grade II 1.2 km