Tyddyn Isaf is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 12 March 2003. Farmhouse.
Tyddyn Isaf
- WRENN ID
- roaming-barrel-cobweb
- Grade
- II
- Local Planning Authority
- Isle of Anglesey
- Constituency
- Ynys Môn MP: Llinos Medi (PC)
- Country
- Wales
- Date first listed
- 12 March 2003
- Type
- Farmhouse
- Address
- Tyddyn Isaf, Llaniestyn, Llanddona
- OS grid reference
- SH 589 801
- Coordinates
- 53.2992, -4.11764
- Source
- Cadw listing
Description
Tyddyn Isaf is a two-storey farmhouse that includes a single-storey stable and a lofted cartshed range attached to the right (east) end. The building is constructed of rubble masonry, with the farmhouse being limewashed, while the stable and cartshed range features mortar that is widely slobbered. The roof is slate, with tiled coping and gable stacks; the left (west) stack is a large squat stack with capping, while the right (east) stack is smaller and rendered. The right gable of the cartshed has stone coping.
The farmhouse has a two-window layout with a doorway in between, and the openings are offset to the right (east). The windows are horizontally sliding sashes with slate sills; the ground floor windows have unequal sashes with 9 panes, while the first-floor windows have 12 panes and are positioned directly under the eaves. The former roofline is clearly visible in the masonry at the left (west) gable.
At the right (east) end, the stable and cartshed range consists of two stables on the left and a single cartshed on the right. The stables have boarded doors with windows to the left, and all openings feature slate lintels. The cartshed has a wide doorway with a cambered head made of rough stone voussoirs and a loft with two windows set under the eaves.
Local climate
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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