Threshing Barn at Home Farm is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 24 May 2000. Barn.

Threshing Barn at Home Farm

WRENN ID
night-floor-swallow
Grade
II
Local Planning Authority
Gwynedd
Constituency
Bangor Aberconwy MP: Claire Hughes (Lab)
Country
Wales
Date first listed
24 May 2000
Type
Barn
Address
Threshing Barn at Home Farm, Penrhyn Park, Llandygai
OS grid reference
SH 594 713
Coordinates
53.22072, -4.10634
Source
Cadw listing

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

Description

The Threshing Barn at Home Farm is a 19th-century structure built from roughly coursed rubblestone and topped with a slate roof. The north side features a central threshing entrance flanked by eight tall ventilation slits. To either side of the entrance, there are alternating doors and louvre-ventilated windows, totaling four on the ground floor, along with a boarded door leading to the loft above. The south side is mostly hidden by an attached two-storey building that has a chimney, and there is a substantial stone lean-to attached to the west gable end. Inside, the barn has a loft at the eastern end, a king-post roof, and a slate slab floor.

Local climate

Threshing Barn at Home Farm 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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  • 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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  5. L-shaped Stable and Carriage Shed Range to main yard at Home Farm Grade II 51 m
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