Glanywern is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 13 April 2005. House and shop.

Glanywern

WRENN ID
woven-step-twilight
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
13 April 2005
Type
House and shop
Address
Glanywern, Dyffryn Ardudwy, Gwynedd
OS grid reference
SH 587 229
Coordinates
52.78526, -4.09653
Source
Cadw listing

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

Description

Glanywern is a house and shop built in the late 19th century. It features two storeys and a two-window range, likely constructed from rubble masonry with rendered elevations. The slate roof has broad rectangular stacks with drip-stones and capping on the gable ends, with the left stack shared with Ty Llwyd.

The right-hand unit has a late 19th-century shop front, which includes a central half-glazed door flanked by tall three-pane windows beneath a moulded cornice. Above this is a tripartite sash window, probably contemporary with the shop front. The dwelling occupies the narrow left-hand unit, which has a panelled door to the right under a shallow overlight with a central glazing bar. To the left, there is an unequal hornless sash window with nine panes and a slate sill on each floor.

To the right of the door, there is a slate plaque inscribed with: YN Y HWN GANWYD/Y CFANSODDWR/MEIRION WILLIAMS/GORFENNAF 19eg 1901, indicating that the composer Meirion Williams was born in this house on July 19, 1901. The building was not inspected at the time of the survey.

Local climate

Glanywern sits in one of the wettest parts of the UK, with an average of 1,460 mm of rain a year. This makes it wetter than 98% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 31 freeze-thaw cycles a year, fewer than 62% of listed buildings. Of these, 14 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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Nearby listed buildings

  1. Ty Llwyd Grade II 9 m
  2. Milepost Grade II 72 m
  3. Former Post Office (Known as Ty Cennin) Grade II 306 m
  4. Capel Horeb and chapel house including railings and gates Grade II 330 m
  5. Liverpool House Grade II 333 m
  6. Milestone at N end Dyffryn Ardudwy Grade II 488 m
  7. Entrance gates, piers and walling at Cors y Gedol Hall Grade II 551 m
  8. Llanddwywe Farm Grade II 576 m
  9. Church of St. Dwywe Grade II* 582 m
  10. Lofted stables and cartshed range at Llanddwywe Farm Grade II 592 m