Cilwych is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 22 June 2005. Farmhouse. 5 related planning applications.

Cilwych

WRENN ID
lone-foundation-sparrow
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
Country
Wales
Date first listed
22 June 2005
Type
Farmhouse
Address
Cilwych, Llanspyddid, Glyn Tarell, Powys, LD3 8NS
OS grid reference
SO 004 277
Coordinates
51.93902, -3.44963
Source
Cadw listing

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

Description

Cilwych is a farmhouse constructed from whitewashed rubble stone, topped with a slate roof and featuring brick end stacks. The building is small, with two storeys and a three-window range that is offset to the left. The centre window is blank, while the other windows are 19th-century four-pane sashes with brick cambered heads. There is a boarded door set in a bead-moulded frame, and a lean-to structure is located on the left-hand end. Additionally, there is a rubble outbuilding at right angles to the farmhouse, which has a tin roof, two doors, and a window.

Local climate

Cilwych sits in one of the wettest parts of the UK, with an average of 1,260 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.

It experiences an average of 56 freeze-thaw cycles a year, more than 96% of listed buildings. Of these, 32 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 — 5 applications
  • 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. Outbuildings at Cilwych Grade II 28 m
  2. Bolgoed Grade II 644 m
  3. Dovecote at Bolgoed Grade II 657 m
  4. The Corn Barn Grade II 808 m
  5. The Farmhouse Grade II 826 m
  6. Copper Beech Barn Grade II 833 m
  7. Cefn Uchaf Grade II 871 m
  8. Church of St Cattwg Grade II 876 m
  9. Wall on N side of churchyard Grade II 888 m
  10. Pearce of Ffrwdgrech tomb and railings in churchyard Grade II 901 m