Boiling house at Tyddyn Isaf is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 12 March 2003. Boiling house.
Boiling house at Tyddyn Isaf
- WRENN ID
- winter-mantel-brook
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 12 March 2003
- Type
- Boiling house
- Address
- Boiling house at Tyddyn Isaf, Llaniestyn, Llanddona
- OS grid reference
- SH 589 801
- Coordinates
- 53.29908, -4.11764
- Source
- Cadw listing
Description
The boiling house at Tyddyn Isaf is a lofted structure built from rubble masonry, featuring mortar that is widely slobbered. It has a slate roof with tiled coping and a rectangular dressed stone stack with capping at the right (west) gable. The ground floor includes large stone lintels over the openings, with a doorway on the left and a 12-pane hornless sash window with a slate sill on the right. There is also a small window on the right, located under the eaves, and access to the loft is provided by an external flight of stone steps at the left (east) gable.
This boiling house was used for cooking until the mid-20th century. Inside, it retains a large inglenook with a massive bressumer at the west end, with the hob and oven located to the right (north) of a stone pier, which previously had a boiler to the left.
Local climate
Boiling house at Tyddyn Isaf 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
- No related consent applications matched
- 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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