Carreg Bach is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 20 February 1974. House.

Carreg Bach

WRENN ID
haunted-flagstone-sunrise
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
20 February 1974
Type
House
Address
Carreg Bach, Yr Enlli / Bardsey Island, Pwllheli, Aberdaron
OS grid reference
SH 119 220
Coordinates
52.76301, -4.78815
Source
Cadw listing

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

Description

Carreg Bach is a single-storey croglofft cottage built from whitewashed rubble stone and topped with a slate roof. It features a single stack at the north end, which was originally square and made of stone, as shown in an 1886 photograph, but has since been replaced with a smaller brick stack on a rendered base. The gable coping is made of quarry tiles and was added after 1886. The cottage is double-fronted, with a window on each side of a ledged door. The windows were originally small-pane sashes in 1886 but have been replaced with 20th-century versions. To the left of the cottage is a small outbuilding made of rubble stone, which has a corrugated-iron flat roof; this outbuilding had a slate gabled roof in 1886.

Inside, the cottage has a two-bay roof supported by a tie-beam truss, with a loft that can be accessed by a ladder and an unheated room below. There is a small fireplace in the main room.

Local climate

Carreg Bach sits in one of the wettest parts of the UK, with an average of 1,410 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 99% of listed buildings.

It averages fewer than one freeze-thaw cycle a year. Average temperatures at this location have risen by 0.2°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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  • 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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