Conservation Areas in London Borough of Hillingdon
The published Planning Data snapshot contains 42 conservation-area records for this authority.
What is a Conservation Area?
A conservation area is an area designated by the local planning authority under the Planning (Listed Buildings and Conservation Areas) Act 1990 as having special architectural or historic interest. The aim is to preserve and enhance the character and appearance of these areas for future generations.
Conservation areas can include town centres, historic villages, Victorian suburbs, garden estates, and even industrial heritage sites. They are not just about the buildings themselves — they also include the spaces between buildings, trees, street furniture, and the general character of the area.
Published Conservation Areas in Hillingdon
These names come from the government's Planning Data service. Open an available record for its official reference, then confirm the boundary and appraisal with the council.
- Black Jacks LockDate not published
- Black Jacks Lock31 July 1975
- Botwell: Nestles20 June 1988
- Botwell: Thorn EMI20 June 1988
- Bulls Bridge1 January 1973
- Bulls Bridge1 January 1973
- Copper Mill Lock1 January 1980
- Coppermill LockDate not published
- Coppermill LockDate not published
- Cowley Church (St. Laurence)1 January 1998
- Cowley Lock27 March 1975
- Cranford ParkDate not published
- Cranford Park1 January 1991
- Denham Lock1 January 1975
- Denham Lock3 July 1975
- Eastcote (Morford Way)1 November 1988
- Eastcote Park Estate1 January 2005
- Eastcote Village16 February 1970
- Harefield Village21 January 1970
- Harlington Village31 March 2005
- Harmondsworth Village29 January 1970
- Hayes Village29 January 1970
- Hillingdon Village15 March 1973
- Ickenham Village29 January 1970
- Longford Village16 February 1970
- Northwood Town Centre, Green Lane2 December 2009
- Northwood, Frithwood2 January 1989
- Old Uxbridge / Windsor StreetDate not published
- Old Uxbridge / Windsor StreetDate not published
- Old Uxbridge / Windsor Street19 July 1973
- Old Uxbridge / Windsor Street19 July 1973
- Rockingham Bridge, Uxbridge19 December 2012
- Ruislip Village10 November 1969
- Ruislip, Manor Way1 January 1989
- Springwell Lock31 July 1975
- The Glen, NorthwoodDate not published
- The Glen, Northwood18 July 2007
- The Greenway16 October 1975
- Uxbridge Lock10 July 2003
- Uxbridge Moor10 July 2003
- West Drayton Green10 November 1969
- Widewater Lock1 January 1988
Coverage varies by provider and can change. Absence from this list is not proof that land is outside a conservation area; the council's map and designation documents are authoritative.
How Conservation Areas Affect Your Planning Rights
Living in a conservation area does not mean you cannot make changes to your home — but it does mean that some works which are normally permitted development will require planning permission. The following permitted development rights are removed or restricted in conservation areas:
- !Cladding the exterior of a house with stone, render, timber, plastic or tiles is not permitted development on article 2(3) land.
- !A roof enlargement cannot project beyond the plane of the principal or side roof slope where it fronts a highway.
- !Side extensions and certain two-storey extensions face tighter permitted-development limits.
- !Outbuildings at the side of a house are not permitted development on article 2(3) land.
- !Relevant demolition may require planning permission, and listed buildings have a separate consent regime.
- !You must normally give the council six weeks’ notice before specified work to trees, unless an exception applies.
- !An Article 4 direction can remove additional rights, but only for the development and area stated in the direction.
How to Check if Your Property is in a Conservation Area
- 1
Screen the postcode or UPRN
Use the PlanningScout constraints checker to look for published national conservation-area and other designation records. Treat a postcode as an area search, not an exact boundary.
Open the constraints checker → - 2
Confirm on Hillingdon's Planning Map
Open London Borough of Hillingdon's interactive planning or constraints map and locate the exact property or red-line site boundary.
Open Hillingdon council website → - 3
Read the designation and appraisal
Open the underlying Planning Data record where available, then find the council appraisal or management plan describing the area’s character and local design guidance.
Open the official dataset → - 4
Check planning history and Article 4
A planning condition or Article 4 direction can remove rights beyond the standard conservation-area restrictions. Read the actual notice and any conditions affecting the property.
Screen published Article 4 records →