Glanrhyd House is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 21 March 1980. House.
Glanrhyd House
- WRENN ID
- crooked-obsidian-hawk
- Grade
- II
- Local Planning Authority
- Pembrokeshire
- Constituency
- Ceredigion Preseli MP: Ben Lake (PC)
- Country
- Wales
- Date first listed
- 21 March 1980
- Type
- House
- Address
- Glanrhyd House, Castell Dwyran, Clynderwen
- OS grid reference
- SN 147 184
- Coordinates
- 51.83376, -4.69051
- Source
- Cadw listing
Description
Glanrhyd House is a Georgian 2½-storey house built of coursed rubble, featuring an asbestos-slate roof with brick sawtooth eaves. The house has inserted skylights and freestone end stacks, with the stack on the left being larger. The main façade has two windows with openings under keyed flat arches, a central replaced door, and 4-pane horned sashes that have been replaced in their original openings.
To the left gable end, there is a lower 2-storey southwest service wing that aligns with the main house. This wing also has 4-pane horned sashes replaced in original openings, with keyed flat arches in both the lower and upper storeys. Above this wing, there is a replaced attic window in the left gable end of the main range.
On the right side of the front, there is a slightly lower half-hipped southeast wing with rendered walls, an asbestos-slate roof, and freestone end stacks. This wing features a 4-pane sash window replaced in an original opening, along with two additional replaced windows further to the right and a replaced stair window in the center. The upper storey of the southeast end wall is slate-hung. The rear of this wing has three windows with renewed 4-pane sashes and a central boarded door, all in original openings. The right gable end of the main range has two windows with replaced 4-pane sashes and an attic window, which is continuous with the gable end of a rear outshut that has a single renewed window. The rear of the main range has three inserted or enlarged windows, with the central window having previously been a doorway.
The interior has been much altered but retains a large fireplace in the kitchen of the main range, featuring a timber lintel. The main range also has a 6-bay collar-beam roof.
Local climate
Glanrhyd House sits in one of the wettest parts of the UK, with an average of 1,170 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 95% of listed buildings.
It experiences an average of 13 freeze-thaw cycles a year, fewer than 88% of listed buildings. Of these, 5 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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