Glan-y-nant is a Grade II listed building in the Cardiff local planning authority area, Wales. First listed on 6 October 1977. House.

Glan-y-nant

WRENN ID
western-railing-shade
Grade
II
Local Planning Authority
Cardiff
Constituency
Cardiff North MP: Anna McMorrin (Lab)
Country
Wales
Date first listed
6 October 1977
Type
House
Address
Glan-y-nant, Pontprennau
OS grid reference
ST 200 837
Coordinates
51.54719, -3.15464
Source
Cadw listing

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

Description

Glan-y-nant is a small two-storey house featuring a thatched roof with a tiled ridge and a brick chimney on the left side. The walls are made of stone, which has been rendered and colourwashed. At the front, the thatch extends over two small first-floor windows that have modern glazing. On the ground floor, there is a 20th-century porch above a roughly central doorway, with a casement window on each side. At the rear, there is a large modern extension.

Local climate

Glan-y-nant sits in a wetter-than-average part of the UK, with an average of 1,080 mm of rain a year. This makes it wetter than 86% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.

It experiences an average of 22 freeze-thaw cycles a year, fewer than 77% of listed buildings. Of these, 8 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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