18 Gwynant Street is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 14 December 1961. Cottage. 1 related planning application.

18 Gwynant Street

WRENN ID
burning-bronze-ivy
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
14 December 1961
Type
Cottage
Address
18 Gwynant Street, Beddgelert, Caernarfon, Gwynedd, LL55 4LY
OS grid reference
SH 591 482
Coordinates
53.01282, -4.10029
Source
Cadw listing

Also on this page: sale history · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

18 Gwynant Street is part of a group of four 2-storey workman's cottages built in the second quarter of the 19th century. Constructed from roughly-squared stone blocks, the cottages feature a continuous slate roof with a tiled ridge and plain, shared chimneys. Each cottage has a single window with returned slate labels and slate lintels on the ground floor. All the doors are from the 20th century. Notably, number 18 retains its original 16-pane sash window on the ground floor, while numbers 18 and 19 have smaller 19th-century 16-pane sashes under the eaves on the upper floors; the other windows are modern.

Local climate

18 Gwynant Street sits in one of the wettest parts of the UK, with an average of 1,500 mm of rain a year. This makes it wetter than 98% 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 32 freeze-thaw cycles a year, fewer than 58% of listed buildings. Of these, 16 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
  • Sale history — 2 transactions since 1999
  • Related listed building consents — 1 application
  • 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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Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.

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