Bryn-yr-odyn is a Grade II listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 30 November 1966. Farmhouse.
Bryn-yr-odyn
- WRENN ID
- carved-facade-grain
- Grade
- II
- Local Planning Authority
- Snowdonia National Park
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 30 November 1966
- Type
- Farmhouse
- Address
- Bryn-yr-odyn, Maentwrog, Gwynedd
- OS grid reference
- SH 707 408
- Coordinates
- 52.94948, -3.92483
- Source
- Cadw listing
Description
Bryn-yr-odyn is a two-storey farmhouse with a later block added to the rear, creating an L-shaped plan. It is constructed of mortared rubble masonry and features a slate roof with stone gable stacks that have dripstones and capping. The main elevation faces south towards the road and has an entrance door offset to the right (east) end, which is a basket-arched opening with radiating stones above. The windows are timber casements; the ground floor window on the left end has been enlarged and consists of three lights, while above it is a two-light window, with a similar window on the right end. Flanking the door are a small single-paned light on the left and a small window on the right, which is obscured by vegetation.
Although not inspected, it is recorded that the original layout in the main range is retained. This layout includes a hall with a gable end fireplace, and a chimney stair alongside, which was likely added when the adjacent wing was constructed in the 17th century. There are post-and-panel partitions on either side of the cross-passage, with paired doors leading to a heated parlour and a small service room beyond the passage. The kitchen is located in the rear wing.
Local climate
Bryn-yr-odyn sits in one of the wettest parts of the UK, with an average of 1,390 mm of rain a year. This makes it wetter than 97% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 94% of listed buildings.
It experiences an average of 44 freeze-thaw cycles a year, more than 86% of listed buildings. Of these, 25 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
- 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
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