About the Hornsey High Street Conservation Area
The Hornsey High Street Conservation Area covers about 6.1 hectares and was designated by London Borough of Haringey in 1980. Inside the boundary are 7 listed buildings (1 Grade II*, 6 Grade II). The most significant is Tower of Old Parish Church of St Mary, Grade II*.
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.
- Tower of Old Parish Church of St MaryGrade II*
- Cast Iron Lamp ColumnGrade II
- Cattle TroughGrade II
- Drinking FountainGrade II
- Monument to Samuel Rogers and Family in North East Corner of St Marys ChurchyardGrade II
- The Great Northern Railway TavernGrade II
- Tomb of Harriet Long and Jacob Walker in the Churchyard of the Old Parish Church of St MaryGrade II
The council’s appraisal
WEBHornsey High Street Conservation Area AppraisalLondon Borough of Haringey’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 London Borough of Haringey and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.