Hafod-Dwyryd is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 13 October 1966. A C17 House.
Hafod-Dwyryd
- WRENN ID
- tenth-glass-spindle
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Bangor Aberconwy MP: Claire Hughes (Lab)
- Country
- Wales
- Date first listed
- 13 October 1966
- Type
- House
- Period
- C17
- Address
- Hafod-Dwyryd, Penmachno, Bro Machno, Conwy
- OS grid reference
- SH 790 498
- Coordinates
- 53.03235, -3.80562
- Source
- Cadw listing
Description
Hafod-Dwyryd is a two-storey building dating from 1678, set behind a small stone-walled garden. The main block faces west and is constructed from local rubble with a slate roof, featuring a stone chimney on the left. A central gabled porch has a large first-floor window with modern glazing and a datestone reading 'R A 1678' above an elliptical-headed doorway, which is adorned with an elliptical dripmould. The porch is illuminated by a small window on its north side.
The main elevation has been truncated on the right and features almost square casement windows on the first floor, with two to the left of the porch and one to the right. On the ground floor, there are two large windows to the left of the porch, aligned with the first-floor windows, while to the right, there are two smaller windows that do not align with those above. The rear of the building has additions from several periods.
To the southeast, there is a single-storey outshot, likely from the 19th century, which surrounds a projecting 16th-century chimney with a tall square stone stack. This outshot includes a small window facing west and a door on the north side. To the right of the outshot, there is a doorway with a segmental 'Cyclopean' head and massive slabs in the jambs. Adjacent to this is a central projecting gabled wing from the 18th century, which is two storeys high and has modern casement windows on both floors, along with a tall rectangular stone chimney to the left.
The north elevation of the wing features a square-headed doorway with a small window to the left. To the right, there is a shallower gabled block from the 17th century, with windows offset to the left; the upper window is broadly proportioned while the lower window is narrower. To the right of this block, there is an unusual corner chimney, likely from the 19th century, at the northeast corner return. The south gable end of the main block has a small vertically-proportioned window on the first floor.
Inside, the north room on the ground floor is said to have panelling, a fireplace, and two doors from the late 17th century.
Local climate
Hafod-Dwyryd sits in one of the wettest parts of the UK, with an average of 1,310 mm of rain a year. This makes it wetter than 95% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 90% of listed buildings.
It experiences an average of 46 freeze-thaw cycles a year, more than 87% 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 0.3°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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- No EPC on record for this property
- Sale history — 1 transaction since 2023
- 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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