Washouses to Nos. 1 & 2 Penrallt is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 30 September 1999. Wash houses.

Washouses to Nos. 1 & 2 Penrallt

WRENN ID
rusted-bastion-sorrel
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
30 September 1999
Type
Wash houses
Address
Washouses to Nos. 1 & 2 Penrallt, Glynllifon, Llandwrog
OS grid reference
SH 465 561
Coordinates
53.08075, -4.29228
Source
Cadw listing

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

Description

This listing describes a pair of wash houses located at Nos. 1 and 2 Penrallt. They are small, single-storey rectangular buildings constructed from irregularly coursed rubblestone, featuring brownish red brick dressings. The roofs are made of corrugated iron, with sheeting on the gable ends, and there is a central brick ridge stack topped with stepped capping and chimney pots.

The front of the buildings has boarded doors, with the right door partly infilled and a window inserted. This is flanked by single-light windows that have two horizontal bars and slate cills. There is also a boarded door on the left gable end.

Inside the left part, there is an incised slate fire surround, although the copper has been removed. The right part was not inspected during the survey.

Local climate

Washouses to Nos. 1 & 2 Penrallt 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.

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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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