Pen-y-bryn-bach is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 21 July 2000. Residential.

Pen-y-bryn-bach

WRENN ID
low-tin-acorn
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
21 July 2000
Type
Residential
Address
Pen-y-bryn-bach, Penygroes, Caernarfon, Llanllyfni
OS grid reference
SH 462 537
Coordinates
53.05842, -4.29554
Source
Cadw listing

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

Description

Pen-y-bryn-bach is a two-storey building constructed of regularly coursed rubblestone and topped with a slate roof that features integral end stacks. The front of the building has three windows, which are four-paned sashes equipped with 20th-century metal shutters. There is a central entrance. The interior was not inspected during the survey.

Local climate

Pen-y-bryn-bach sits in one of the wettest parts of the UK, with an average of 1,370 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 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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
  • No related consent applications matched
  • 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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