Capel Seion is a Grade II listed building in the Brecon Beacons National Park local planning authority area, Wales. First listed on 30 September 1999. Chapel.

Capel Seion

WRENN ID
scattered-paling-quill
Grade
II
Local Planning Authority
Brecon Beacons National Park
Constituency
Caerfyrddin MP: Ann Davies (PC)
Country
Wales
Date first listed
30 September 1999
Type
Chapel
Address
Capel Seion, Myddfai, Llandovery, Carmarthenshire
OS grid reference
SN 773 302
Coordinates
51.95705, -3.78559
Source
Cadw listing

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

Description

Capel Seion is a chapel constructed with painted stucco and a slate eaves roof. It features a long two-storey facade with quoins. On the first floor, there are two large arched sash windows with earlier 19th-century intersecting tracery in their heads. Flanking these are two shorter sash windows with fixed 8-pane lights and similar arched heads, situated beside a tall central arched doorway. This doorway has paired later 19th-century three-panel doors and matching intersecting tracery in the fanlight above. A stucco plaque in the center reads 'Seion 1890'. To the left, there is a single-storey vestry that projects outward, featuring a door and two sash windows, also from the later 19th century. The chapel has a small chimney at the left end, while the right end and rear walls are slate-hung above whitewashed rubble. The right end wall includes a small 12-pane horned sash window on the ground floor. The rear of the building has two arched windows with fixed late 19th-century glazing and stone sills, while the vestry's rear has rubble stone walls and a brick surround for its window.

Inside, parts of the chapel date back to 1844 and include a gallery on three sides supported by turned wooden columns. The gallery features vertical panels over a plain deep cornice with curved angles. The pews are painted and have shaped bench ends, arranged in three blocks with the outer blocks facing inward. There is a late 19th-century set fawr with curved corners, doors in the curved angles, and a late 19th-century pulpit. The pulpit has stairs on each side, square newels with finials, and balustrades on the stairs and platform front on each side of the canted pulpit, which is adorned with fretwork panels. Behind the pulpit is a plaster arch. The gallery contains steeply raked pews with straight panelled backs and shaped bench ends. The lobby features a central window with etched and colored glass margins, along with two doors on the canted sides. The gallery stairs have stick balusters and ramped rails, with late 19th-century bottom newels. The ceiling is flat and panelled with wooden strips, dating from the 20th century.

Local climate

Capel Seion sits in one of the wettest parts of the UK, with an average of 1,390 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.

It experiences an average of 43 freeze-thaw cycles a year, more than 84% of listed buildings. Of these, 23 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

Sign in or create a free account to unlock:

  • No EPC on record for this property
  • No sale records on file
  • 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
Create free account

Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

Similar buildings

The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.

Nearby listed buildings

  1. Ty'r Graig Grade II 165 m
  2. Bailey Glas Grade II 174 m
  3. Ger y Lan Grade II 184 m
  4. Church of St Michael Grade I 188 m
  5. Telephone Call-box (01550 720559) Grade II 205 m
  6. Church House Grade II 215 m
  7. Churchyard wall, gates and war memorial at Church of St Michael Grade II 222 m
  8. Old Post Office Grade II 223 m
  9. The Plough Inn Grade II 241 m
  10. Llangoedmor House Grade II 249 m