Field Barn at Dylysau Isaf is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 17 July 1992. Church.
Field Barn at Dylysau Isaf
- WRENN ID
- standing-entrance-candle
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 17 July 1992
- Type
- Church
- Address
- Field Barn at Dylysau Isaf, Bro Machno, Conwy
- OS grid reference
- SH 817 526
- Coordinates
- 53.05836, -3.76539
- Source
- Cadw listing
Description
The Field Barn at Dylysau Isaf is a 19th-century structure built from a mix of slate and rubble, incorporating some small boulders, with boulder foundations. The roof is covered with small slates arranged in diminishing courses. There are three doorways, each featuring simple stone lintels. Two of the doors are located in the typical positions at the gable end (north) and the opposite corner (southwest), while an additional doorway is found on the long side (east). The building was originally lofted, as indicated by a pitching window in the gable end facing the road. Inside, the barn features old roof trusses of a simple tie-beam type, with new rafters.
Local climate
Field Barn at Dylysau Isaf sits in one of the wettest parts of the UK, with an average of 1,200 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 84% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 27 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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- Ty'n Coed Isaf (Field Barn)
- Dylasau Isaf
- Barn/Cowhouse Range at Dylysau Isaf
- Former Stable at Dylasau Isaf
- Field Barn at Penrhyn Uchaf
- Telford Milestone (48)
- Pont Conwy (Bont Newydd (partly in the Bro Garmon Community)
- Pont Rhyd-Llanfair (partly in the Bro Garmon Community)
- Bryn Eithin & attached Agricultural Ranges
- Telford Milestone (47)