Polot House is a Grade II listed building in the Pembrokeshire Coast National Park local planning authority area, Wales. First listed on 4 February 1991. Pilot house, limekiln.
Polot House
- WRENN ID
- dusted-cobble-moss
- Grade
- II
- Local Planning Authority
- Pembrokeshire Coast National Park
- Constituency
- Ceredigion Preseli MP: Ben Lake (PC)
- Country
- Wales
- Date first listed
- 4 February 1991
- Type
- Pilot house, limekiln
- Address
- Polot House, Porthgain, Llanrhian
- OS grid reference
- SM 813 326
- Coordinates
- 51.94896, -5.18311
- Source
- Cadw listing
Description
Polot House is a mid-19th century former pilot house constructed from coursed slate slabs, featuring an imitation slate roof and a brick stack at the north end. It has a small-scale, one-room plan built into the side of a hill, with outside stairs leading up from the east side to a door at the south end. There is one small window on the east side and another small window at the north end.
Adjacent to the house is a well-preserved circular rubble stone lime-kiln, likely from the early 19th century, built into the side of a bank. This kiln is a typical Dewisland type, characterized by opposed kiln eyes and upper parts that slope in towards stone slab lintels. Curving outside steps on the north side lead up to a flat top that has an infilled crucible.
The property is situated on land that belongs to Henllys farm and is marked on the 1887 Ordnance Survey map as an ‘old limekiln’. It is recognized as one of the best-preserved examples of the numerous coastal limekilns in North Pembrokeshire. The site is also designated as a Scheduled Ancient Monument (Pe 388).
Local climate
Polot House sits in a wetter-than-average part of the UK, with an average of 1,050 mm of rain a year. This makes it wetter than 85% 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 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows 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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