About the Bromley, Hayes and Keston Commons Conservation Area
The Bromley, Hayes and Keston Commons Conservation Area covers about 60 hectares and was designated by London Borough of Bromley in 2000. Inside the boundary are 10 listed buildings, all Grade II. Part of the area lies in flood zone 3, so an extension may need a flood risk assessment.
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.
- 76, Gravel RoadGrade II
- Hayes CourtGrade II
- Hayes GroveGrade II
- Hayes Grove CottageGrade II
- Holy Trinity War MemorialGrade II
- Lodge to the WarrenGrade II
- Oakley HouseGrade II
- The Oast House the PantilesGrade II
- The WarrenGrade II
- Wall and Gate Piers to the WarrenGrade II
The council’s appraisal
WEBBromley, Hayes and Keston Commons Conservation Area AppraisalLondon Borough of Bromley’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 Bromley and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.