Long Barn and attached Byre Range at Old Impton Farm is a Grade II listed building in the Powys local planning authority area, Wales. First listed on 26 March 1985. Barn, byre.
Long Barn and attached Byre Range at Old Impton Farm
- WRENN ID
- floating-oriel-quill
- Grade
- II
- Local Planning Authority
- Powys
- Constituency
- Brecon, Radnor and Cwm Tawe MP: David Chadwick (LD)
- Country
- Wales
- Date first listed
- 26 March 1985
- Type
- Barn, byre
- Address
- Long Barn and attached Byre Range at Old Impton Farm, Norton, Presteigne
- OS grid reference
- SO 290 669
- Coordinates
- 52.29602, -3.04119
- Source
- Cadw listing
Description
The Long Barn and attached Byre Range at Old Impton Farm likely date from the 18th century and are two storeys high, with a tractor shed attached at the northwest end, which has undergone later alterations. The long barn features mostly weatherboarding, with rubble footings and lower gable ends, topped with corrugated iron roofs. It has vertically-boarded loft doors and ground floor openings, including full-height threshing doors facing the farmyard. Inside, there are tie-beam trusses with angled braces, some sections having post and panel infill while others are boarded.
The byre range is positioned at right angles to the barn, featuring a rubble gable end to the southeast, with ground floor ventilation slits, weatherboarding, regular doors, and loft openings facing the yard. The gable of the tractor shed is also weatherboarded.
Later additions to the west of the site are not of special interest.
Local climate
Long Barn and attached Byre Range at Old Impton Farm receives an average of 860 mm of rain a year. This makes it wetter than 61% of listed buildings in the UK. Its exposure to wind-driven rain is lower than that of 56% of listed buildings.
It experiences an average of 47 freeze-thaw cycles a year, more than 89% of listed buildings. Of these, 26 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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