Pen-y-braich is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 28 May 1999. Residential.

Pen-y-braich

WRENN ID
low-casement-bittern
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
28 May 1999
Type
Residential
Address
Pen-y-braich, Moel Tryfan, Caernarfon, Llanwnda
OS grid reference
SH 505 565
Coordinates
53.08542, -4.23336
Source
Cadw listing

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

Description

Pen-y-braich is a pair of single-storey cottages, built in the 19th century, aligned roughly from north-east to south-west. The larger cottage on the right has a two-room layout, while the smaller one has a single room. Both cottages feature small lean-tos at the rear and are constructed from painted rubblestone with a slate roof.

The right cottage has 20th-century four-paned top-hung windows that replicate the appearance of 19th-century sash windows, positioned on either side of an offset plank door. It also has a rebuilt integral end stack on the right and a similar ridge stack on the left, located at the junction with the left cottage. The left cottage features top-hung windows as well, with one in the center and another to the left of the ridge stack, which infills a former doorway. There is an integral end stack on the left side as well.

Additionally, there is a probably truncated outbuilding slightly set down from the gable end of the right cottage, which has a tin roof and boarded double doors at the front. The rear lean-tos have top-hung windows on their back walls, with a 20th-century boarded door located between them in the main back wall. The interior was not accessible during the survey.

Local climate

Pen-y-braich sits in one of the wettest parts of the UK, with an average of 1,380 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 25 freeze-thaw cycles a year, fewer than 73% of listed buildings. Of these, 12 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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