Granston Hall is a Grade II listed building in the Pembrokeshire local planning authority area, Wales. First listed on 1 March 1963. House.
Granston Hall
- WRENN ID
- hollow-soffit-owl
- Grade
- II
- Local Planning Authority
- Pembrokeshire
- Constituency
- Ceredigion Preseli MP: Ben Lake (PC)
- Country
- Wales
- Date first listed
- 1 March 1963
- Type
- House
- Address
- Granston Hall, Granston/Treopert, Pencaer
- OS grid reference
- SM 895 342
- Coordinates
- 51.96667, -5.06447
- Source
- Cadw listing
Description
Granston Hall is a house dating from around 1840, constructed from rubble stone with hipped roofs and rubble stone stacks. It is two storeys high and has a square plan, featuring a northern entrance front and a more prominent eastern front. The eastern front has four windows and is topped with a grouted slate roof. It includes hornless sash windows with slate sills and rough stone voussoirs. Unusually, the windows in the middle two bays on each floor are paired, with 12-pane windows on the first floor and 15-pane windows on the ground floor. There is a central ridge stack.
The southern end has a hipped roof covered in grouted slate that projects slightly. Attached to the southern side is a single-storey range that leans to the east and extends back to the western gable end, featuring a large stone stack. This long side has four bays, with a door located in the second bay from the left. The windows are all 20th-century under stone voussoirs and have slate sills, with one window on the eastern end. The roofs of both the attached range and the main house's southern and western roofs are made of imitation slate. The rear western range of the main house has a hipped roof, a stone ridge stack, a one-window range to the right, and a central lean-to.
The northern entrance front has three windows, a central door, and narrow tripartite sash windows on each side, with a pair of hornless sashes on the first floor center. It also features stone voussoirs and slate sills.
A rubble stone garden wall encloses the eastern and southern sides of the property, and there is a curved stone well-head located on the eastern lawn.
Local climate
Granston Hall sits in a wetter-than-average part of the UK, with an average of 1,120 mm of rain a year. This makes it wetter than 88% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 97% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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