About the Porter Brook Conservation Area
The Porter Brook Conservation Area covers about 7.4 hectares and was designated by Sheffield City Council in 2000. Inside the boundary are 11 listed buildings (1 Grade II*, 10 Grade II). The most significant is Sharrow Mills, 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.
ProjectElsewhereIn Porter Brook CA
- 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.
- Sharrow MillsGrade II*
- Bow WorksGrade II
- Bridge and Retaining Wall at Rear of Sharrow MillsGrade II
- Bridge to East of Sharrow Mills and Attached Gate PierGrade II
- Dam Walls at Sharrow MillsGrade II
- Former Stable Range and Coopers Shop to North of Sharrow MillsGrade II
- Former Stables and Fan Room to West of Sharrow MillsGrade II
- New Mill Building at Sharrow MillsGrade II
- Sewer Gas Lamp at Junction With Frog WalkGrade II
- Westbrook House, Sheffield Area Health Authority OfficesGrade II
- Westbrook Snuff MillGrade II
Nearby conservation areas
Boundary and listed buildings from Sheffield City Council and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.