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

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

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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Nearby listed buildings

  1. Gatepiers, Port Allen Farm Grade C 28 m
  2. South Lodge, Errol Park Grade C 1.2 km
  3. Errol Park House Grade A 1.4 km
  4. 2 Croft Terrace, Errol Grade C 1.4 km
  5. 1 Croft Terrace, Errol Grade C 1.4 km
  6. Walled Garden, Errol Park Grade B 1.4 km
  7. Errol Park Stables Grade A 1.4 km
  8. Park Cottage, St. Madoe's Road, Errol Grade C 1.5 km
  9. East Lodge, Errol Park Grade C 1.5 km
  10. East Lodge Gates & Gatepiers, Errol Park Grade B 1.5 km