About the Hounslow Cavalry Barracks Conservation Area
The Hounslow Cavalry Barracks Conservation Area covers about 15 hectares and was designated by London Borough of Hounslow in 1992. Inside the boundary are 11 listed buildings, all 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.
- Barrack Masters House (building 3) Hounslow BarracksGrade II
- Former Chapel to Hounslow Cavalry BarracksGrade II
- Former Coach Houses at North and South Ends of West Stable Range and North End of East Stable Range to Hounslow Cavalry BarracksGrade II
- Former Hospital (Building 42), Hounslow BarracksGrade II
- Former Married Quarters (building 16), Hounslow BarracksGrade II
- Former Officers Mess and Quarters to Hounslow Cavalry BarracksGrade II
- Former Stable Ranges Along the East and West Side of Former Parade Ground to Hounslow Cavalry BerracksGrade II
- Hardinge Block (building 8), Hounslow BarracksGrade II
- Medical Centre (building 24), Hounslow BarracksGrade II
- Naafi (building 9), Hounslow BarracksGrade II
- The Keep (armoury) to Hounslow Cavalry BarracksGrade II
The council’s appraisal
WEBHounslow Cavalry Barracks 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.