Carn Brea Castle is a Grade II listed building in the Cornwall local planning authority area, England. First listed on 9 April 1975. Folly. 1 related planning application.
Carn Brea Castle
- WRENN ID
- sharp-truss-amber
- Grade
- II
- Local Planning Authority
- Cornwall
- Constituency
- Camborne and Redruth MP: Perran Moon (Lab)
- Country
- England
- Date first listed
- 9 April 1975
- Type
- Folly
- Address
- Carn Brea Castle, TR16 6SL
- OS grid reference
- SW 686 408
- Coordinates
- 50.22246, -5.24496
- Source
- Historic England listing
Description
Carn Brea Castle is a hunting lodge or folly, now used as a restaurant. It was built by the Basset family of Tehidy, primarily in the 18th and 19th centuries, though it incorporates fabric believed to be medieval. The building is constructed of uncoursed granite rubble with granite dressings, set on an irregular foundation of natural granite and boulders at the summit of the hill. The plan is irregular, consisting of four rectangular turrets surrounding a central core, all of the same height. The style is Gothick, featuring mostly two-centred arched openings and an embattled parapet. The castle is mostly two storeys high. The entrance front, facing south, has a narrow set-back section between two turrets. It includes a doorway to the right, a small window to the left, and a window above the door. The right-hand turret has a raised square-headed doorway in the re-entrant wall, a small square window above, and an arched window at the first floor of the front wall. The narrower left turret has two similar windows at the first floor of its outer wall. To the rear, a pile of massive boulders forms the “ground floor” of the north-west turret, which is precariously positioned upon them. This turret has one small square-headed lancet window at a high level on each of its three sides, with flat coping and a chimney on the west side. A long flight of steps leads to a doorway in the re-entrant wall of the north-east turret and to the rear wall of the core, which is exposed here. This wall has a depressed two-centred arch at the same level, alongside some larger masonry that may be of earlier origin. The north side of the north-east turret features two windows at a raised ground floor level, and a small lancet above. Its east side has a similar lancet at the upper level and a chimney pipe rising from an upstand of the battlements. The interior was not inspected. Carn Brea Castle, along with the nearby Dunstanville Memorial, forms a very prominent landmark.
Local climate
Carn Brea Castle receives an average of 870 mm of rain a year. This makes it wetter than 62% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 86% of listed buildings.
It experiences an average of 5 freeze-thaw cycles a year, fewer than 97% of listed buildings. Of these, 2 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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- Full EPC report — heating system, energy costs, size, glazing, construction etc.
- Sale history — 1 transaction since 1995
- Related listed building consents — 1 application
- 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
Matched applications, energy data and sale records are assembled automatically and may contain errors. Flag incorrect data.
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Nearby listed buildings
- Dunstanville Memorial
- St Eunys Well
- Church of St Euny
- Lychgate to Church of St Euny
- The Glebe
- House Formerly Known As the Princes Plume Public House
- Trelowan
- Stamps Engine House to West Basset Stamps on North Wheal Basset Sett at SW 687 402
- Frue Vanner House to West Basset Stamps on North Wheal Basset Sett at SW 687 401
- Gunpowder Magazine on the Northern Slopes of Carn Brea