About the CARN BREA Conservation Area
The CARN BREA Conservation Area covers about 127 hectares and was designated by Cornwall Council in 1974. Inside the boundary are 11 listed buildings (1 Grade II*, 10 Grade II). The most significant is Church of St Euny, Grade II*. Part of the area lies in flood zone 3, so an extension may need a flood risk assessment.
What changes inside the conservation area
Conservation areas are “Article 2(3) land”. You keep most permitted development rights, but these are removed or tightened.
- Rear extensionElsewhere: 3 m · 6 m with PANo 6 m / 8 m prior approval
- Two-storey extensionElsewhere: 3 mNeeds planning permission
- Side extensionElsewhere: Half the widthNeeds planning permission
- Loft conversionElsewhere: 50 m³Needs planning permission
- Garden roomElsewhere: 2.5 m high by boundariesNot beside the house
- PorchElsewhere: 3 m²Same limits
- Solar panelsElsewhere: 0.2 m projectionSame limits
- Air source heat pumpElsewhere: 1 unitNot facing the road
- Fences, walls and gatesElsewhere: 2 m · 1 m by a roadSame limits
- External claddingElsewhere: Matching materialsNeeds planning permission
- Tree workElsewhere: No notice6 weeks’ notice to the council
- Demolition (over 115 m³)Elsewhere: AllowedNeeds planning permission
Limits for a semi-detached house under the GPDO 2015. An Article 4 direction can remove more.
Listed buildings in the conservation area
Any work affecting these needs listed building consent, inside or out. Each links to its entry on the National Heritage List.
- Church of St EunyGrade II*
- 1-5Grade II
- Carn Brea CastleGrade II
- Dunstanville MemorialGrade II
- Gunpowder Magazine on the Northern Slopes of Carn BreaGrade II
- House Formerly Known As the Princes Plume Public HouseGrade II
- Lychgate to Church of St EunyGrade II
- St Eunys WellGrade II
- The Former RectoryGrade II
- The GlebeGrade II
- TrelowanGrade II
Nearby conservation areas
Boundary and listed buildings from Cornwall Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.