Port Allen Farm is a Grade B listed building in the Perth and Kinross local planning authority area, Scotland. First listed on 9 June 1981. Horsemill, steading.
Port Allen Farm
- WRENN ID
- rusted-soffit-ochre
- Grade
- B
- Local Planning Authority
- Perth and Kinross
- Constituency
- Perth and Kinross-shire MP: Pete Wishart (SNP)
- Country
- Scotland
- Date first listed
- 9 June 1981
- Type
- Horsemill, steading
- OS grid reference
- NO 250 212
- Coordinates
- 56.3776, -3.21505
- Source
- Historic Environment Scotland listing
Description
Port Allen Farm is a large circular horsemill built in 1871 by John Honeyman. It features a cartshed and a granary, forming an L-plan range that remains intact. The structure is made of squared and snecked rubble with stugged ashlar margins, and it has segmental cart arches with voussoirs.
The horsemill has broad piers that support timber-lintel openings, some of which are part-blocked, beneath a slated conical roof. The steading is also slated and has ashlar-coped skews.
On the northwest elevation, there are three blocked cart arches below a square granary opening to the left. To the right, there are further door and window openings, which are also blocked, with the horsemill projecting beyond. There is a large square-headed opening that is part-blocked on the outer right, with a hayloft door above.
The northeast elevation displays a variety of elements, including four blocked cart arches and granary openings, indicating alterations to the elevation.
Local climate
Port Allen Farm receives an average of 930 mm of rain a year. This makes it wetter than 71% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 99% of listed buildings.
It experiences an average of 55 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 29 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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