Deunant-mawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 4 November 1999. House, farm building.
Deunant-mawr
- WRENN ID
- north-pinnacle-willow
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 4 November 1999
- Type
- House, farm building
- Address
- Deunant-mawr, Dinas Mawddwy, Machynlleth, Mawddwy, Gwynedd
- OS grid reference
- SH 861 168
- Coordinates
- 52.73694, -3.68699
- Source
- Cadw listing
Description
Deunant-mawr is a building constructed from rubble stonework, topped with a slate roof. It consists of a house and a farm building situated uphill, aligned with and at right angles to the road. The house is a single-storey structure with attics, featuring two bays. It includes a lobby entry next to the lower end stack, which leads into a living room, and to the right above, there is an inner room. The entrance has a boarded door with an overlight, and there are two light, 2-paned casement windows, with the upper floor windows set in small raised dormers. A square stack with drip courses connects the house to the lower farm building. The farm building has a single boarded door and an opening high in the gable end. The property was not accessible at the time of inspection.
Local climate
Deunant-mawr sits in one of the wettest parts of the UK, with an average of 1,240 mm of rain a year. This makes it wetter than 93% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 47 freeze-thaw cycles a year, more than 88% 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
Sign in or create a free account to unlock:
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
Similar buildings
The closest matches to this building from all 493,000 UK listed buildings, by architecture, period and materials.
this building 1 similar nearby listed buildings