Pigsties at Bwthyn Cochwillan is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 9 March 2000. Pigsty.

Pigsties at Bwthyn Cochwillan

WRENN ID
silent-pilaster-solstice
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
9 March 2000
Type
Pigsty
Address
Pigsties at Bwthyn Cochwillan, Llanllechid
OS grid reference
SH 606 694
Coordinates
53.20371, -4.08724
Source
Cadw listing

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

Description

The pigsties at Bwthyn Cochwillan are constructed from irregularly coursed rubblestone and feature slate slab coping on the pens. The building has a gable-ended slate roof with coped verges and ridge ventilators. On the west side, there are three pens, each with doors leading to the interior, which is divided by stone cross walls. Additionally, there are slate and brick feeding troughs present.

Local climate

Pigsties at Bwthyn Cochwillan sits in one of the wettest parts of the UK, with an average of 1,210 mm of rain a year. This makes it wetter than 92% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.

It experiences an average of 37 freeze-thaw cycles a year, more than 67% of listed buildings. Of these, 19 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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  • No EPC on record for this property
  • No sale records on file
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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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  1. Cochwillan Grade I 22 m
  2. Bwthyn Cochwillan Grade II 22 m
  3. Slate Fencing at Bwthyn Cochwillan Grade II 32 m
  4. Outbuildings at Cochwillan Grade II 35 m
  5. Fferm Cochwillan Grade II 52 m
  6. Cowhouses/Cart Shelter at Fferm Cochwillan Grade II 57 m
  7. Pigsties/Pig Kitchen at Fferm Cochwillan Grade II 72 m
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