Bryn Hall is a Grade II* listed building in the Snowdonia National Park local planning authority area, Wales. First listed on 4 November 1999. House. 3 related planning applications.
Bryn Hall
- WRENN ID
- stark-finial-elm
- 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
- Bryn Hall, Llanymawddwy, Machynlleth, Mawddwy, Gwynedd, SY20 9AH
- OS grid reference
- SH 907 193
- Coordinates
- 52.76087, -3.62062
- Source
- Cadw listing
Description
Bryn Hall is a house built of roughly coursed local rubble, topped with a slate roof. It has three storeys and a cellar, with the main front dating from the early 19th century featuring three bays. The central entrance has a six-fielded panelled door with a seven-pane overlight, flanked by full-height glazed French windows that open inwards, likely from the early 20th century. On the first floor, there are 12-pane sash windows, while the second floor has 9-pane single-hung sashes positioned directly below the boxed eaves. At the rear, there is a gabled wing.
To the right of the front elevation, set back, is a service wing that was added or completely reworked in the early 20th century by Sir John Bradford in an Edwardian style. This wing extends to the north as a kitchen wing, enclosing a small open service yard. The rear of the yard features three 12-pane sash windows, likely from the early 19th century, and above them is a square oriel bay window supported by cut timber corbel brackets, topped with a shallow gable that extends to the rear. There is also an extruded glazed corner on the return wing.
Inside, the front entrance leads across the end of a living hall to a cross passage that contains the staircase. To the right is a smaller parlour. The staircase is a remarkable dog-leg design from around 1700, notable for its lack of newels and featuring turned balusters on wreathed urns, elaborate tread brackets, and a wreathed handrail that is scrolled at the foot. This oak staircase, possibly with mahogany elements, rises through all three floors and has an entrance feature at the bottom with shallow keyed arches that are scrolled at the ends.
Local climate
Bryn Hall sits in one of the wettest parts of the UK, with an average of 1,190 mm of rain a year. This makes it wetter than 91% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 82% of listed buildings.
It experiences an average of 54 freeze-thaw cycles a year, more than 95% of listed buildings. Of these, 34 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- No sale records on file
- Related listed building consents — 3 applications
- 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.
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