Circular Pigsty to north of Downs Farm is a Grade II listed building in the Vale of Glamorgan local planning authority area, Wales. First listed on 10 September 1982. Pigsty.

Circular Pigsty to north of Downs Farm

WRENN ID
dusted-oriel-quill
Grade
II
Local Planning Authority
Vale of Glamorgan
Constituency
Vale of Glamorgan MP: Kanishka Narayan (Lab)
Country
Wales
Date first listed
10 September 1982
Type
Pigsty
Address
Circular Pigsty to north of Downs Farm, Llantwit Major, Cowbridge / Y Bont-Faen
OS grid reference
SS 950 701
Coordinates
51.42035, -3.51028
Source
Cadw listing

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

Description

This is a cylindrical stone pigsty located to the north of Downs Farm, dating from the 19th century. It features a conical roof made of stone, although the exterior of the cone has been cemented. There is a square-headed entry on the north-east side, and the north side is partly covered with plant growth. It is likely that there was a former stone enclosure and trough that are no longer present. Inside, the roof is constructed using 'cave-work' or corbelled techniques.

Local climate

Circular Pigsty to north of Downs Farm sits in one of the wettest parts of the UK, with an average of 1,170 mm of rain a year. This makes it wetter than 90% 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 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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.

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