About the Great Offley Conservation Area
The Great Offley Conservation Area covers about 14 hectares and was designated by North Hertfordshire District Council in 1969. Inside the boundary are 20 listed buildings (1 Grade I, 1 Grade II*, 18 Grade II). The most significant is Church of St Mary Magdalene (c of E), 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 Magdalene (c of E)Grade I
- Court HouseGrade II*
- 2-6, West LaneGrade II
- Barn to North West of the Green Man Public HouseGrade II
- Churchyard Wall Next Road and Iron Gates at Church of St Mary MagdaleneGrade II
- Dovecote at Westbury FarmGrade II
- Great Offley HouseGrade II
- North and East Barn Ranges at Westbury Farm Alongside School LaneGrade II
- Offley Place (hertfordshire Educational Department Residential Centre) and Linked North Service BlockGrade II
- South Range of Farm Buildings at Westbury Farm, Running From Westbury House to RoadGrade II
- The Bull Public HouseGrade II
- The Green Man Public HouseGrade II
- The Lawns and Linked Outbuildings to SouthGrade II
- The Pond Cottage the Pond HouseGrade II
- The RookeryGrade II
- Vine CottageGrade II
- Walls and Gate of Walled Garden at the LawnsGrade II
- Walls and Iron Gates of Walled Garden at Offley Place to North West of HouseGrade II
- West Barn at Great Offley HouseGrade II
- Westbury House Flats 1, 2, 3, 4Grade II
Streets in the conservation area
Streets with listed buildings inside the boundary. Boundaries often split a street — check your exact address.
The council’s appraisal
WEBGreat Offley 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.