Quarryworkers' Barracks is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 4 November 1999. Cottage.

Quarryworkers' Barracks

WRENN ID
deep-pedestal-dock
Grade
II
Local Planning Authority
Gwynedd
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
4 November 1999
Type
Cottage
Address
Quarryworkers' Barracks, Gilfach Ddu, Caernarfon, Llanddeiniolen
OS grid reference
SH 589 602
Coordinates
53.12051, -4.10919
Source
Cadw listing

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

Description

The Quarryworkers' Barracks consists of two parallel rows of single-storey cottages, facing inward and aligned roughly from north-west to south-east. These rows are connected by a linking wall that features a flat-headed archway at the south-eastern end. Each row contains 11 cottages, each designed with a two-room layout. The larger room includes a fireplace and a doorway leading to a smaller room. The cottages are constructed from roughly coursed rubblestone and slate slabs, which are also used for quoins and lintels. The original roof timbers are completely gone, although the north-western end of the north-eastern block has had the two end cottages reroofed, but the slates have been removed here as well.

Each cottage has tall rectangular window openings, which were likely originally fitted with sash windows, flanking an offset doorway; however, all joinery is missing. There are slate-stone ashlar ridge or end stacks with slate drips. The back wall of each range features a single window in the larger room of some, but not all, cottages.

Notably, the gable-end room of the cottage at the south-east end of the north-eastern range lacks a fireplace, indicating that the gable-end stack was likely added for symmetry. In contrast, the built-out slate fireplace in the corresponding room of the south-western range appears to be a later addition, suggesting that this room was also originally unheated.

Local climate

Quarryworkers' Barracks sits in one of the wettest parts of the UK, with an average of 1,360 mm of rain a year. This makes it wetter than 96% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 95% of listed buildings.

It experiences an average of 40 freeze-thaw cycles a year, more than 78% of listed buildings. Of these, 22 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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