18 Penybryn Road is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 25 April 1997. House.

18 Penybryn Road

WRENN ID
sunken-wicket-cobweb
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
25 April 1997
Type
House
Address
18 Penybryn Road, Bethesda, Bangor
OS grid reference
SH 625 668
Coordinates
53.18084, -4.05898
Source
Cadw listing

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

Description

16 and 18 Penybryn Road are two-storey houses built from rubble stone with slate roofs and three stone chimneys. Each house has a double front with recessed triple casement windows and a central door. The windows feature large stone or slate slab lintels and slate sills, with small panes arranged in a 6-pane configuration above and an 8-pane configuration below.

The entrance includes a five-panel door with an overlight. There is also an original slate front wall that includes four piers, low iron railings, and an iron gate.

Local climate

18 Penybryn Road sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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