About the Gunnersbury Park Conservation Area
The Gunnersbury Park Conservation Area covers about 116 hectares and was designated by London Borough of Hounslow in 1990. Inside the boundary are 21 listed buildings (4 Grade II*, 17 Grade II). The most significant is Conservatory in Gunnersbury Park, Grade II*. 1 Article 4 direction over the area removes 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.
- Article 4(2) directions for Bedford Park and Gunnersbury Conservation areasHouseholder works
- Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 DirectionChange of use
- Change of use or development that would result in new dwellings (Class MA/ZA)Change 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.
- Conservatory in Gunnersbury ParkGrade II*
- East Stables in Gunnersbury ParkGrade II*
- Gunnersbury Park MuseumGrade II*
- Temple in Gunnersbury ParkGrade II*
- Archway at East End of Terrace, Gunnersbury Park MansionGrade II
- Archway to Gunnersbury Park (west of East Entrance Lodge to Gunnersbury Lane)Grade II
- Archway to South West of Gunnersbury Park HouseGrade II
- Boundary Wall at Gunnersbury ParkGrade II
- Dairy at GunnersburyGrade II
- East Lodge of Gunnersbury Park With Archway and Entrance GatewayGrade II
- Gateway Near Princess Amelia's Bath House, Gunnersbury ParkGrade II
- Gothic boathouse and pavilion on south shore of Potomac fish pond.Grade II
- Gothic outbuildings East of Gunnersbury House including arcade grotto shelter and room known as Princess Amelia's Bath HouseGrade II
- Gothic Ruins on Borders of Former Japanese Gardens, Gunnersbury ParkGrade II
- Gunnersbury HouseGrade II
- Kitchen Garden Wall, Including Carved Door and Wrought Iron Gate Gunnersbury ParkGrade II
- North Entrance Gateway of Gunnersbury ParkGrade II
- North Lodge of Gunnersbury ParkGrade II
- Series of 6 Iron Lampstandards in Front of Gunnersbury Park MansionGrade II
- Stone Fountain Near Refreshment Room, Gunnersbury ParkGrade II
- West Stables in Gunnersbury ParkGrade II
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.