Tyddyn Berth is a Grade II listed building in the Gwynedd local planning authority area, Wales. First listed on 11 September 2012. Farmhouse, outbuilding, cow house.
Tyddyn Berth
- WRENN ID
- weathered-paling-gorse
- Grade
- II
- Local Planning Authority
- Gwynedd
- Constituency
- Dwyfor Meirionnydd MP: Liz Saville Roberts (PC)
- Country
- Wales
- Date first listed
- 11 September 2012
- Type
- Farmhouse, outbuilding, cow house
- Address
- Tyddyn Berth, Bontnewydd
- OS grid reference
- SH 488 587
- Coordinates
- 53.10458, -4.25981
- Source
- Cadw listing
Description
Tyddyn Berth is a farmhouse with an outbuilding and cow house arranged in a line. It is built from rubble stone, featuring slate hanging on the main house, roughcast on the attached outbuilding, and large boulders on the cow house, which highlights the different materials used according to the function of each building.
The roofs are slate, with rendered gable chimney stacks and small pane sash windows. The farmhouse is a two-storey structure with three bays, while the outbuilding is single-storey, and the cow house, which is also single-storey, is attached to the right, aligned on a north-south axis. The main west-facing elevation of the farmhouse has slate hanging, a central planked door with a plain small-paned overlight, and 12-pane sash windows. The single-storey outbuilding to the right is roughcast, featuring a single door, a 9-pane window, and a small gable stack. The cow house range, limewashed and consisting of three bays, is further to the right, with the furthest bay being a later extension. There is also a front outbuilding that was formerly a stable, which has a later extension on the side that shows evidence of water-powered machinery.
At the rear, the farmhouse has exposed rubble masonry with three 12-pane sashes on the first floor, offset to the left, and on the ground floor, there is an 8-pane fixed casement to the left and a single modern window to the extreme right. The single-storey outbuilding has a small rooflight. There are three bay gabled outbuildings at the rear of the cow house range, along with enclosing yard walls.
The internal layout remains unaltered, featuring a central stair-hall with plain balusters and a turned newel for the stair. The kitchen is to the left, equipped with a framed fireplace, while the pantry is to the right, with a slate floor that likely extends throughout the kitchen. The parlour, located to the right, has a slate fireplace supported by heavy corbels. Throughout the building, there are four-panel doors, picture rails, and skirting.
Local climate
Tyddyn Berth sits in one of the wettest parts of the UK, with an average of 1,370 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 98% of listed buildings.
It experiences an average of 20 freeze-thaw cycles a year, fewer than 78% of listed buildings. Of these, 9 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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