About the Hanworth Park Conservation Area
The Hanworth Park Conservation Area covers about 58 hectares and was designated by London Borough of Hounslow in 1984. Inside the boundary are 11 listed buildings (1 Grade II*, 10 Grade II). The most significant is Church of St George, 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.
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.
- Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 DirectionChange of use
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.
- Church of St GeorgeGrade II*
- Boundary Wall Between Tudor House and Tudor CourtGrade II
- Boundary Wall to Tudor House and Parr CourtGrade II
- Fireplace Arches to West, South West of Tudor HouseGrade II
- Forecourt Wall to Tudor HouseGrade II
- Garden Wall to East of Tudor House GroundsGrade II
- Hanworth Park HouseGrade II
- North Alcove in Garden of Tudor HouseGrade II
- South Alcove in Garden of Tudor HouseGrade II
- The RectoryGrade II
- Tudor CourtGrade II
The council’s appraisal
WEBHanworth Park Conservation Area AppraisalLondon Borough of Hounslow’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 Hounslow and Historic England via planning.data.gov.uk (OGL). Guidance only — not an official council check.