About the Great Wymondley Conservation Area
The Great Wymondley Conservation Area covers about 17 hectares and was designated by North Hertfordshire District Council in 1979. Inside the boundary are 13 listed buildings (1 Grade I, 2 Grade II*, 10 Grade II). The most significant is Church of St Mary the Virgin (church of England), 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.
- 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 the Virgin (church of England)Grade I
- Delamere House and Barn Attached on WestGrade II*
- The Manor HouseGrade II*
- 1 Post Office RowGrade II
- 1, 2, 3, 4 and 5 Hornbeam Court, (howard Cottage, Seymour Cottage, Boleyn Cottage, Aragon Cottage, Cleeves Cottage)Grade II
- Box Tree CottageGrade II
- Castle CottageGrade II
- Granary at Delamere House on Roadside to West of HouseGrade II
- Lavender CottageGrade II
- Long CloseGrade II
- Manor CottagesGrade II
- Old School HouseGrade II
- The GrangeGrade II
The council’s appraisal
WEBGreat Wymondley Conservation Area AppraisalNorth Hertfordshire District 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 North Hertfordshire District Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.