About the Clapham High Street Conservation Area
The Clapham High Street Conservation Area covers about 4.8 hectares and was designated by London Borough of Lambeth in 1997. Inside the boundary are 3 listed buildings, all Grade II. 2 Article 4 directions over the area remove further householder rights, on top of the conservation area limits below.
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.
Article 4 directions here
These overlap the conservation area. Householder directions remove more of the rights above; change-of-use ones don’t affect extending a house.
- Modified Direction 3 - Town CentresHouseholder works
- Modified Direction 2 - KIBAs and WNCBCHouseholder works
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.
- 101,103,105 and 107, Clapham High Street Sw4Grade II
- 49, Clapham High Street Sw4Grade II
- Bowyer House (rear of Numbers 34 and 36)Grade II
Nearby conservation areas
Boundary and listed buildings from London Borough of Lambeth and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.