Grotto and Surrounding Rock Garden to South East of Pencarrow House is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 4 November 1988. Rock garden and grotto.
Grotto and Surrounding Rock Garden to South East of Pencarrow House
- WRENN ID
- crooked-hammer-tide
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- North Cornwall MP: Ben Maguire (LD)
- Country
- England
- Date first listed
- 4 November 1988
- Type
- Rock garden and grotto
- Address
- Grotto and Surrounding Rock Garden to South East of Pencarrow House, Egloshayle
- OS grid reference
- SX 040 710
- Coordinates
- 50.50632, -4.76513
- Source
- Historic England listing
Description
The grotto and surrounding rock garden, located to the southeast of Pencarrow House, date from around the 1840s and were designed by Sir William Molesworth. The rock garden is primarily made of large granite boulders, while the grotto is built from granite, slatestone, quartz, and slag. The rock garden has an irregular layout on the east side of the terraced lawns, adjacent to Pencarrow House. The grotto features a roughly semi-circular cave with walls made from a mix of different stones.
Local climate
Grotto and Surrounding Rock Garden to South East of Pencarrow House sits in a wetter-than-average part of the UK, with an average of 1,000 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 89% of listed buildings.
It experiences an average of 10 freeze-thaw cycles a year, fewer than 90% 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 0.3°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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