About the ST COLUMB MAJOR Conservation Area
The ST COLUMB MAJOR Conservation Area covers about 15 hectares and was designated by Cornwall Council in 1976. Inside the boundary are 76 listed buildings (1 Grade I, 6 Grade II*, 69 Grade II). The most significant is Church of St Columba, Grade I. 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.
ProjectElsewhereIn ST COLUMB MAJOR CA
- 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 ColumbaGrade I
- Bank HouseGrade II*
- Garden Walls and Gate Piers Attached to Right and Rear Left of Bank HouseGrade II*
- Gate Piers at the South West Entrance to PenmellynGrade II*
- PenmellynGrade II*
- The Glebe HouseGrade II*
- Town HallGrade II*
- 1 and 3, Victoria StreetGrade II
- 1-12, Market PlaceGrade II
- 10, Bank StreetGrade II
- 12, Bank StreetGrade II
- 14, Bank StreetGrade II
- 18, Fore StreetGrade II
- 2 and 4, Broad StreetGrade II
- 2, Union HillGrade II
- 20 and 22, Fair StreetGrade II
- 20, Fore StreetGrade II
- 22, Fore StreetGrade II
- 3, Broad StreetGrade II
- 3, Market PlaceGrade II
- 32, Fair StreetGrade II
- 36 and 38, Fore StreetGrade II
- 4 and 6, Bank StreetGrade II
- 4, Union HillGrade II
Show all 76 listed buildings ↓All 76 listed buildings
- 40, Fore StreetGrade II
- 5, Bank StreetGrade II
- 5, Market PlaceGrade II
- 59, Fore StreetGrade II
- 6, Union HillGrade II
- 61, Fore StreetGrade II
- 67, Fore StreetGrade II
- 69, Fore StreetGrade II
- 7, Bank StreetGrade II
- 8, Bank StreetGrade II
- 8, Union HillGrade II
- 9, Broad StreetGrade II
- Barclays BankGrade II
- Barley Sheaf InnGrade II
- BarnecuttsGrade II
- Bible Christian ChapelGrade II
- Bridge Over the River MenalhylGrade II
- Clarendon HouseGrade II
- ClematisGrade II
- Coffee Shop the Little GalleryGrade II
- Friends JaynesGrade II
- Garden Walls About 20 Metres East of No 24 (grove House)Grade II
- Gazebo About 15 Metres South of GlencairnGrade II
- GlencairnGrade II
- Group of 11 Bollards and 2 Lamp Posts at the North West Side of Union SquareGrade II
- Group of 5 Monuments in the North Area of the Churchyard of Church of St ColumbaGrade II
- Grove HouseGrade II
- House Immediately North of the Barley Sheaf InnGrade II
- Ivy HouseGrade II
- Lower PenmellynGrade II
- MelnessGrade II
- No 21 With Front Area WallsGrade II
- Pair of Gate Piers at the East Entrance to the Old RectoryGrade II
- Piers and Wall at the Entrance Gateway to GlencairnGrade II
- Premises of B Nance and SonGrade II
- Rosemellyn HouseGrade II
- Row of 11 Bollards South West of the Town HallGrade II
- St Columb Gallery and MuseumGrade II
- St Columb Liberal ClubGrade II
- Sunday SchoolGrade II
- The Cabbage PatchGrade II
- The Post OfficeGrade II
- The Red Lion HotelGrade II
- Three Lychgates and Walls Surrounding the Churchyard to South, West and North of Church of St ColumbaGrade II
- Toll HouseGrade II
- Town MillsGrade II
- Town PumpGrade II
- Tremain monument in the churchyard about 8 metres south of south aisle of Church of St ColumbaGrade II
- Unidentified Monument in the Churchyard About 24 Metres South of South Transept of Church of St ColumbaGrade II
- Williams ChemistsGrade II
- Williams Monument in the Churchyard About 15 Metres South of South Transept of Church of St ColumbaGrade II
- Wonford HouseGrade II
Streets in the conservation area
Streets with listed buildings inside the boundary. Boundaries often split a street — check your exact address.
Fore StreetBank StreetUnion HillBroad StreetMarket PlaceFair StreetVictoria Street
The council’s appraisal
PDFST COLUMB MAJOR Conservation Area AppraisalCornwall Council’s description of the area’s character — what planners look at when you apply.Open on council site ↗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.