Carthouse, Stable and Granary at Isallt-fawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 March 1999. Carthouse, stable, granary.

Carthouse, Stable and Granary at Isallt-fawr

WRENN ID
seventh-pavement-primrose
Grade
II
Local Planning Authority
Snowdonia National Park
Constituency
Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
Country
Wales
Date first listed
30 March 1999
Type
Carthouse, stable, granary
Address
Carthouse, Stable and Granary at Isallt-fawr, Dolbenmaen, Gwynedd
OS grid reference
SH 534 443
Coordinates
52.97637, -4.18476
Source
Cadw listing

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

Description

The Carthouse, Stable, and Granary at Isallt-fawr is a building constructed from irregular local rubble stonework and features a slate roof with coped gables. It consists of three bays, with the carthouse located at the southern end, which has a simple rectangular opening. The stable is situated at the northern end and is illuminated by a paned window. Additionally, at the northern end, facing the farmhouse, there is an external stone stair made of six slate steps that leads up to a gable door accessing the former granary.

Local climate

Carthouse, Stable and Granary at Isallt-fawr sits in one of the wettest parts of the UK, with an average of 1,550 mm of rain a year. This makes it wetter than 99% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 99% of listed buildings.

It experiences an average of 20 freeze-thaw cycles a year, fewer than 79% of listed buildings. Of these, 8 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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