About the Halnaker Conservation Area
The Halnaker Conservation Area covers about 42 hectares and was designated by South Downs National Park in 1981. Inside the boundary are 14 listed buildings (1 Grade I, 13 Grade II). The most significant is The Ruins of the Old Halnaker House, 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.
- The Ruins of the Old Halnaker HouseGrade I
- 40 and 41, Petworth RoadGrade II
- 46 and 47, Petworth RoadGrade II
- 48 and 49, Petworth RoadGrade II
- BroadlandsGrade II
- Halnaker HouseGrade II
- Halnaker ParkGrade II
- Halnaker Park CottageGrade II
- Old Forge CottageGrade II
- Pear Tree HouseGrade II
- Rose Cottage and Jasmine CottageGrade II
- South East Gateway to the Goodwood Estate, Adjoining Park LaneGrade II
- Swan Tea Room the Old StoreGrade II
- The Anglesey InnGrade 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
WEBHalnaker Conservation Area AppraisalSouth Downs National Park’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 South Downs National Park and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.