Bryn-brith is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 4 November 1999. A N/A House.

Bryn-brith

WRENN ID
last-brick-cream
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
4 November 1999
Type
House
Period
N/A
Address
Bryn-brith, Dinorwic, Caernarfon, Llanddeiniolen
OS grid reference
SH 593 626
Coordinates
53.14203, -4.10464
Source
Cadw listing

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

Description

Bryn-brith is a single-storey building with a two-room plan, oriented roughly from north-east to south-west. It is constructed of irregularly coursed rubblestone, showing extensive traces of render, and features a graded slate roof with coped verges. The front of the building has windows, although much of the joinery was missing at the time of the survey. These windows are situated on either side of a slightly offset boarded door. The building has integral end stacks with slate drips. Overall, it is in poor condition, and the interior was not accessible during the survey.

Local climate

Bryn-brith sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 78% of listed buildings. Of these, 22 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 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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