Porth Mawr Lodge is a Grade II listed building in the Monmouthshire local planning authority area, Wales. First listed on 9 December 2005. Lodge.
Porth Mawr Lodge
- WRENN ID
- high-slate-storm
- Grade
- II
- Local Planning Authority
- Monmouthshire
- Constituency
- Monmouthshire MP: Catherine Fookes (Lab)
- Country
- Wales
- Date first listed
- 9 December 2005
- Type
- Lodge
- Address
- Porth Mawr Lodge, Llanover Park, Abergavenny, Llanover
- OS grid reference
- SO 307 092
- Coordinates
- 51.77744, -3.00528
- Source
- Cadw listing
Description
Porth Mawr Lodge is a gatehouse built of red sandstone ashlar for the gate-tower and coursed, squared rubble for the lodge and attached walling. It features an entrance lodge and gateway designed in the style of the courtyard entry of an Elizabethan country house. The gate-tower stands two storeys high and has a slightly off-centre, two-centred archway with a dripmould that has square stops, leading to double oak gates. To the left of the arch, the wall is slightly wider to accommodate the stair, which includes two slit windows. Above the arch, there is a rectangular sunk panel, and above that, a four-light stone mullioned window with lights that have four-centred heads and a dripmould above. The structure also features a stringcourse, a castellated parapet, a turret for the stairhead, and chimneys on either side. The lodge itself is single storey with a lean-to on the inside of the park wall, although this was not visible during inspection. The inner face of the tower was also not seen. The interior has not been observed during the resurvey.
Local climate
Porth Mawr Lodge receives an average of 960 mm of rain a year. This makes it wetter than 74% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 71% of listed buildings.
It experiences an average of 45 freeze-thaw cycles a year, more than 86% 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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