Courtyard outbuildings and retaining walls to adjacent formal garden area at Glan Gwna Hall is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 21 July 1999. Outbuildings.

Courtyard outbuildings and retaining walls to adjacent formal garden area at Glan Gwna Hall

WRENN ID
moated-lintel-khaki
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
21 July 1999
Type
Outbuildings
Address
Courtyard outbuildings and retaining walls to adjacent formal garden area at Glan Gwna Hall, Caeathro, Waunfawr
OS grid reference
SH 501 620
Coordinates
53.13428, -4.24113
Source
Cadw listing

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

Description

The courtyard outbuildings and retaining walls at Glan Gwna Hall date from the 19th century and form three sides of a courtyard, with the fourth side being the house itself. The single-storey elevation facing the formal garden has bracketed hipped dormers that break the eaves above three-light leaded windows, with two windows to the left and one to the right of an offset boarded door, which is located under a gabled bracketed hood that also breaks the eaves. There is a tall pyramidal spirelet on the ridge. The formal garden in front is roughly square in shape and is enclosed by a retaining wall featuring simple flat-headed balustrading. On the non-courtyard side of the main range of outbuildings, there are four flush rooflights with vertical bars set into the roof slope. The interior has not been inspected.

Local climate

Courtyard outbuildings and retaining walls to adjacent formal garden area at Glan Gwna Hall sits in one of the wettest parts of the UK, with an average of 1,380 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 98% of listed buildings.

It experiences an average of 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 12 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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  • No EPC on record for this property
  • No sale records on file
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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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Nearby listed buildings

  1. Glan Gwna Hall Grade II* 27 m
  2. Terrace and retaining walls at Glan Gwna Hall Grade II 36 m
  3. Stable Block at Glan Gwna Hall Grade II 177 m
  4. Gate piers and walls at entrance to Glan Gwna Hall Grade II 318 m
  5. Grand Lodge to Glan Gwna Hall Grade II 385 m
  6. Bryn Eden and terrace walls to front Grade II 572 m
  7. Milestone Grade II 675 m
  8. Plas Bach Grade II 758 m
  9. Stables at Wern Grade II 866 m
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