Limekiln at Penhwnllys is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 12 March 2003. Limekiln.

Limekiln at Penhwnllys

WRENN ID
gilded-bonework-spring
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
12 March 2003
Type
Limekiln
Address
Limekiln at Penhwnllys, Llaniestyn, Llanddona
OS grid reference
SH 599 809
Coordinates
53.3067, -4.10275
Source
Cadw listing

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

Description

The limekiln at Penhwnllys is a pyramidal structure made of rubble masonry. It features triangular, stone-lined openings in both the north and south walls, with brick ovens located inside each opening.

Local climate

Limekiln at Penhwnllys 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 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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  4. Cefn Grade II 1.1 km
  5. Barn and dovecote, Tros-y-marian Grade II 1.1 km
  6. Cartshed range at Tros-y-marian Grade II 1.1 km
  7. Twr Garw Grade II 1.1 km
  8. Stable range at Tros-y-marian Grade II 1.1 km
  9. Gate piers, Tros-y-marian Grade II 1.1 km
  10. Tros-y-marian Grade II* 1.1 km