About the Thorne Coffin Conservation Area
The Thorne Coffin Conservation Area covers about 8.3 hectares and was designated by Somerset Council in 1978. Inside the boundary are 12 listed buildings (1 Grade II*, 11 Grade II). The most significant is Church of St Andrew, 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 AndrewGrade II*
- Brambley CottageGrade II
- Brooke HouseGrade II
- East Boundary Wall to Manor Farmhouse, And South ReturnGrade II
- Group of Farm Buildings About 12 Metres West of Manor FarmhouseGrade II
- Haskin Monument in Churchyard, About One Metre North East of North Porch, Church of St AndrewGrade II
- Manor FarmhouseGrade II
- Smith Monument in Churchyard, About 9 Metres South of South Porch, Church of St AndrewGrade II
- The CottageGrade II
- The Old RectoryGrade II
- Thorne HouseGrade II
- Two Monuments in Churchyard, Immediately South of Chancel, Church of St AndrewGrade II
The council’s appraisal
WEBThorne Coffin Conservation Area AppraisalSomerset 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 Somerset Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.