Pensianel Pigsty is a Grade II listed building in the Neath Port Talbot local planning authority area, Wales. First listed on 26 May 1972. Standing stones.

Pensianel Pigsty

WRENN ID
standing-cobble-thunder
Grade
II
Local Planning Authority
Neath Port Talbot
Constituency
Neath and Swansea East MP: Carolyn Harris (Lab)
Country
Wales
Date first listed
26 May 1972
Type
Standing stones
Address
Pensianel Pigsty, Skewen, Dyffryn Clydach
OS grid reference
SS 727 984
Coordinates
51.67057, -3.84116
Source
Cadw listing

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

Description

The Pensianel Pigsty is a circular structure built from rubble stone, featuring walls made of courses of stones with minimal mortar. It has a circular plan and a pointed dome roof, which is constructed by slightly corbelling each successive course of thin stones. The apex of the roof is topped with a curved finial stone. There is a narrow door located on the south side, which has a stone slab lintel.

Local climate

Pensianel Pigsty sits in one of the wettest parts of the UK, with an average of 1,380 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 96% of listed buildings.

It experiences an average of 28 freeze-thaw cycles a year, fewer than 69% of listed buildings. Of these, 12 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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  • 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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