Castle House is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 19 October 2000. House.
Castle House
- WRENN ID
- solitary-step-sparrow
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 19 October 2000
- Type
- House
- Address
- Castle House, Grosmont, Abergavenny
- OS grid reference
- SO 404 243
- Coordinates
- 51.91455, -2.86657
- Source
- Cadw listing
Description
Castle House is a two-storey, double fronted house built from rubble stone, topped with a slate roof and featuring a stone stack. The first floor has three 4-pane horned sash windows, each with deep stone lintels and shallow stone sills. The ground floor includes a central entrance doorway with a rectangular overlight and a 6-panel door. To the left of the doorway is a 20th-century window with a similar lintel and sill, while to the right is a large bay window with a hipped stone-tiled roof; the front of the bay has a broad 5-light window with panes arranged in 8+8+8+8+8.
The southeast gable features a centrally projecting chimneystack with offsets, and within the middle wall of the stack are stones with small circular recesses, which may be reused fragments of a medieval arrow loop. To the left of the stack is a small square attic window and a 2+2 pane casement window on the first floor.
The house has a two-unit plan with a central entrance corridor that leads to rear service rooms. The ground-floor room to the left of the entry has a 20th-century fireplace with a marble surround and roundels at the angles. The upper floors were not seen during the inspection.
Local climate
Castle House receives an average of 890 mm of rain a year. This makes it wetter than 65% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 61% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 87% of listed buildings. Of these, 22 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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