About the Holmbury St Mary Conservation Area
The Holmbury St Mary Conservation Area covers about 28 hectares and was designated by Guildford Borough Council in 1990. Inside the boundary are 6 listed buildings (2 Grade I, 4 Grade II). The most significant is Church of St Mary, Grade I.
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 Holmbury St Mary 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 MaryGrade I
- HolmdaleGrade I
- Chapel Cottage and Cottage AdjoiningGrade II
- Hilda CottageGrade II
- Neale CottageGrade II
- Stable Block 5 Yards to Left of HolmdaleGrade II
Nearby conservation areas
Boundary and listed buildings from Guildford Borough Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.