Gwalia is a Grade II listed building in the Wrexham local planning authority area, Wales. First listed on 15 March 1994. House. 9 related planning applications.

Gwalia

WRENN ID
graven-wattle-nightshade
Grade
II
Local Planning Authority
Wrexham
Constituency
Wrexham MP: Andrew Ranger (Lab)
Country
Wales
Date first listed
15 March 1994
Type
House
Address
Gwalia, Knolton, Overton, LL13 0LG
OS grid reference
SJ 358 405
Coordinates
52.9588, -2.95584
Source
Cadw listing

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

Description

Gwalia is a brick building with a slate roof, dating from the early 19th century. It is two storeys high and has a symmetrical three-window front. The central entrance is framed by a hood, and features a six-panelled door. The windows to either side are paired sash windows with small panes of glass and margin lights, likely inserted in the early 19th century. The upper windows are also sash windows with margin lights, set into original window openings. A coved plaster cornice runs along the eaves. The rear elevation displays remnants of three original windows with mullions and a transom, now set within wider openings with arched brick heads. These windows are largely blocked, and one is cut through by a rear wing added in the early 19th century. Brick stacks are located at the ends of the building.

Local climate

Gwalia receives an average of 850 mm of rain a year. This makes it wetter than 59% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 92% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 70% of listed buildings. Of these, 20 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.
  • Sale history — 3 transactions since 2010
  • Related listed building consents — 9 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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  4. Llan-y-Cefn Grade II* 573 m
  5. Barton's Bridge Grade II 576 m
  6. Knolton Hall Grade II* 626 m
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