About the Sherborne Conservation Area 3 Conservation Area
The Sherborne Conservation Area 3 Conservation Area covers about 5.6 hectares and was designated by Dorset Council in 1989. Inside the boundary are 15 listed buildings (1 Grade II*, 14 Grade II). The most significant is Church of St Mary Magdalene, 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 Mary MagdaleneGrade II*
- Beech Cottage and Garden GateGrade II
- Castle FarmhouseGrade II
- Castleton MillGrade II
- Churchyard Walls, Piers and Gates of Church of St Mary MagdaleneGrade II
- Digby EstateGrade II
- Digby Estate No 10, CastletonGrade II
- Digby Estate No 9, CastletonGrade II
- Garden Wall and Piers to Lattice HouseGrade II
- Lattice House Including Area RailingsGrade II
- Middle HouseGrade II
- Outbuilding at North End of Wall of Digby Estate No 10Grade II
- Outhouse Attached to South-West End of Digby Estate Nos 275 and 276Grade II
- Raleigh LodgeGrade II
- Wall Adjoining Digby Estate No 10 to the NorthGrade II
Nearby conservation areas
Boundary and listed buildings from Dorset Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.