About the Alphin Brook Conservation Area
The Alphin Brook Conservation Area covers about 87 hectares and was designated by Exeter City Council in 1991. Inside the boundary are 14 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.
- Alphington CrossGrade II
- Elm Cottage the ElmsGrade II
- Garden Wall of UnderwoodGrade II
- Garden Wall of Underwood CottageGrade II
- Garden Walls of the VillaGrade II
- Holmbush CottageGrade II
- Ide HouseGrade II
- Little John CrossGrade II
- Outhouse at UnderwoodGrade II
- Rock HouseGrade II
- The BriarsGrade II
- THE CROSSE HOUSE and COURTYARD COTTAGEGrade II
- The VillaGrade II
- Underwood CottageGrade II
The council’s appraisal
WEBAlphin Brook Conservation Area AppraisalExeter City 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 Exeter City Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.