Parterre Walls to Tregrehan House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 8 November 1999. Garden wall.
Parterre Walls to Tregrehan House
- WRENN ID
- heavy-courtyard-ash
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- St Austell and Newquay MP: Noah Law (Lab)
- Country
- England
- Date first listed
- 8 November 1999
- Type
- Garden wall
- Address
- Parterre Walls to Tregrehan House, St Blazey Gate, St. Blaise
- OS grid reference
- SX 051 534
- Coordinates
- 50.34893, -4.73973
- Source
- Historic England listing
Description
The parterre walls at Tregrehan House are part of an Italianate formal garden, likely constructed between 1848 and 1850 by W Eden Nesfield, during the time the house was refronted for Colonel Edward Carlyon. These rubble walls feature granite copings and granite ashlar gate-piers at the gateway in the center of the east wall. The rectangular terrace in front of the house is enclosed by parterre walls on three sides. A round fountain is located near the south wall, which includes a polished turned shaft on a rectangular base and a lobed bowl at the top. The east wall possibly retains its original chamfered and braced wooden gate, with stick shafts or "balusters" more closely set in the lower half. This structure is part of an important group of buildings associated with Tregrehan House.
Local climate
Parterre Walls to Tregrehan House sits in a wetter-than-average part of the UK, with an average of 990 mm of rain a year. This makes it wetter than 80% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 87% of listed buildings.
It experiences an average of 10 freeze-thaw cycles a year, fewer than 91% of listed buildings. Of these, 4 follow 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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