Screen Wall at West of Trelowarren is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 22 June 1987. Wall, turret.
Screen Wall at West of Trelowarren
- WRENN ID
- grey-mullion-shade
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Ives MP: Andrew George (LD)
- Country
- England
- Date first listed
- 22 June 1987
- Type
- Wall, turret
- Address
- Screen Wall at West of Trelowarren, Mawgan-In-Meneage
- OS grid reference
- SW 719 238
- Coordinates
- 50.0712, -5.18873
- Source
- Historic England listing
Description
The screen wall at the west of Trelowarren House is a Grade II listed structure, likely built in the early to mid-19th century. It is constructed from serpentine rubble with serpentine dressings around the doorway and features embattled parapets. The wall has an L-shaped plan, with a longer section measuring approximately 100 metres oriented east-west, and a shorter section of about 10 metres oriented north-south. These walls are connected by a taller round turret that has a doorway at the outside angle, and the walls stand approximately 2.5 metres high.
Both the walls and the turret feature moulded copings on the merlons and embrasures. The doorway is nearly round-headed with a segmental plan and has an arched door made up of six flush beaded panels. Above the doorway, there is a circular stone with a flared cross in relief. Additionally, the wall to the left of the turret is artificially made to appear ruined at the end.
Local climate
Screen Wall at West of Trelowarren receives an average of 870 mm of rain a year. This makes it wetter than 63% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 91% of listed buildings.
It experiences an average of 3 freeze-thaw cycles a year, fewer than 99% of listed buildings. Of these, 1 follows at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.2°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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