Cornbarn range, Dronwy is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 19 December 2000. Agricultural range. 3 related planning applications.

Cornbarn range, Dronwy

WRENN ID
slow-slate-evening
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
19 December 2000
Type
Agricultural range
Address
Cornbarn range, Dronwy, Llanfachraeth, Holyhead, LL65 4NH
OS grid reference
SH 313 840
Coordinates
53.32626, -4.53426
Source
Cadw listing

Also on this page: sale history · EPC · related consents · flood risk · radon risk · weather exposure · detailed attributes ↓

Description

This is a long agricultural range situated in Dronwy, dating from the 18th century. The range is divided into a corn barn to the south and cowhouses to the north. The corn barn is constructed with uncoursed rubble walls resting on boulder foundations. It has a roof of small slates, with a narrow gable coping to the north end, and is covered in grout. A central door is accessed via a large boulder jambstone on the left side, and is topped with a corbelled stone lintel which acts as a dripcourse. To the left of the door is a narrow ventilation slit, and a former door has been blocked to create a small window to the right. A winnowing door is located in the rear wall and has been infilled with breeze blocks, with a further infilled window or pitching hole to the left. Extending from the corn barn is a lower-ridged section comprising a pair of conjoined cowhouses. The cowhouse to the left has a corrugated iron roof, while the cowhouse to the right has a roof of small slates with a skylight in the rear (west) pitch. The left cowhouse has a blocked door converted into a window on the left side and a stable door in the centre, with a blocked window to the right. The right cowhouse has a single blocked door at the left end, and a door in the north gable end has been widened to allow tractor access. A modern breeze block shed is attached to the south gable end of the corn barn. Internal inspection of the corn barn was not possible. The north cowhouse has a three-bay roof with sawn and bolted collared trusses, and torching to the underside.

Local climate

Cornbarn range, Dronwy sits in a wetter-than-average part of the UK, with an average of 1,030 mm of rain a year. This makes it wetter than 83% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 93% of listed buildings.

It experiences an average of 8 freeze-thaw cycles a year, fewer than 93% of listed buildings. Of these, 3 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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  • Full EPC report — heating system, energy costs, size, glazing, construction etc.
  • Sale history — 2 transactions since 2000
  • Related listed building consents — 3 applications
  • 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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