Dugoed-mawr is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 4 November 1999. House.

Dugoed-mawr

WRENN ID
other-panel-pearl
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
Address
Dugoed-mawr, Cwm Cewydd, Mawddwy, Gwynedd
OS grid reference
SH 893 124
Coordinates
52.69855, -3.6386
Source
Cadw listing

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

Description

Dugoed-mawr is a building constructed of rubble stonework, topped with slate roofs. It consists of two distinct parts: the front range, which is oriented east-west, features two storeys and two bays, with a central entrance located within a gabled open porch. The building has uPVC windows on both floors, flanking the entrance, and gable stacks. The rear wing is a single storey with an attic, featuring rooflights and two bays that slope uphill to a gable end stack. The entrance to this wing is through a modern stone porch situated at the junction of the front block and the rear, covered by a shallow pitched roof. Small windows in this section have been replaced with uPVC.

Inside the rear wing, there is a living kitchen accessed from a lower lobby next to the main central stack. This wing is supported by three trusses made of massive crucks that rise from the floor. It includes a large fireplace with an arched fire beam and a blocked feature on the north gable end, likely an oven. The main axial stack features another fireplace at the south end of the kitchen, which includes an oven at the rear. The open joisted ceiling is held up by a cross binder with cut chamfered stops, and the joists also have similar chamfer stops.

Local climate

Dugoed-mawr sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 85% of listed buildings.

It experiences an average of 49 freeze-thaw cycles a year, more than 91% of listed buildings. Of these, 28 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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