Bwlch-y-garreg is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 26 June 1998. House.

Bwlch-y-garreg

WRENN ID
forbidden-quartz-russet
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
26 June 1998
Type
House
Address
Bwlch-y-garreg, Rhiw, Pwllheli, Aberdaron
OS grid reference
SH 225 277
Coordinates
52.81818, -4.63516
Source
Cadw listing

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

Description

Bwlch-y-garreg is a cottage built from rubble stone, which was once whitewashed. It features a corrugated iron roof that replaced small slates, as seen in a photograph from 1985. The cottage has a prominent square end stack on the right, made of stone with dripstones and a pyramidal capping. It is a single-storey, double-fronted building with two-pane casements on either side of the door; the left casement is larger, and the entire facade is offset to the left. The cottage stands on very large boulder footings and has a small window at the rear leading to a scullery.

To the right of the cottage is a 19th-century added byre, also constructed from rubble stone and topped with a corrugated iron roof. This byre has a small window on the left and a door on the right, and its roof is lower than that of the house. There is a one-bay addition on the right end with a cobble floor.

The interior of the cottage has seen little alteration but is in a state of decay. The kitchen on the right is open to the roof and features a large fireplace with a beam dated 1818, along with an inserted oven and grate. To the left of the fireplace is a cupboard. A partition made of wide boards, with two doors, separates the entry area; one door led to a bedroom with a box bed that is now gone, and the other door led to a narrow scullery, with the partition between the bedroom and scullery having been removed. Above the left part of the cottage is a croglofft, which is accessed by a ladder, although the supporting cross beam is broken.

Local climate

Bwlch-y-garreg sits in one of the wettest parts of the UK, with an average of 1,600 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.

It experiences an average of 1 freeze-thaw cycle a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. 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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