Planning in Three Rivers
Three Rivers District Council has 19 conservation areas and 0 Article 4 direction areas on the national planning data platform.
Conservation areas
19
Article 4 directions
0
Listed building outlines
–
Planning applications
–
not published yet
Check what you can build — with AI
Planium reads the conservation area appraisal, Article 4 directions and local plan policies for Three Rivers and tells you whether your extension, loft conversion or change of use needs planning permission.
Conservation areas
- Abbots Langley
- Batchworth Heathdesignated 1 January 1994
- Chorleywood Commondesignated 1 January 1976
- Chorleywood, Station Estatedesignated 26 September 1990
- Coppermill Lock
- Croxley Greendesignated 22 January 1980
- Croxley Green, Dickinson Squaredesignated 1 January 1994
- Frith Wooddesignated 26 November 2007
- Grove Milldesignated 1 January 1973
- Heronsgatedesignated 1 January 1993
- Hunton Bridgedesignated 1 January 1984
- Loudwaterdesignated 12 November 1998
- Moor Park Estatedesignated 18 May 1995
- Outer Loudwaterdesignated 6 February 2006
- Oxhey Halldesignated 6 March 2006
- Rickmansworth Town Centredesignated 1 January 1973
- Rickmansworth, Cedars Avenuedesignated 3 April 2006
- Rickmansworth, Nightingale Roaddesignated 12 November 1998
- Rickmansworth, Upper Nightingale Roaddesignated 9 January 2006
Article 4 directions
No Article 4 directions published on the platform yet.
Frequently asked questions
Is my property in a conservation area in Three Rivers?
Three Rivers District Council has designated 19 conservation areas, listed on this page with their designation dates and appraisal documents where the council publishes them. In a conservation area, permitted development rights are narrower: cladding, some extensions, roof alterations and satellite dishes on the front elevation may need planning permission, and demolition of most buildings needs consent.
What is an Article 4 direction?
An Article 4 direction removes specific permitted development rights in a defined area, so work that would normally not need planning permission — for example replacing windows, changing a house into a small HMO or altering front boundaries — does need an application. Three Rivers has 0 Article 4 direction areas recorded on planning.data.gov.uk.
How do I check what I am allowed to build?
Start with the designations on the site (conservation area, Article 4, listed building), then the local plan policies and any design codes. Planium can read the council’s appraisal and policy documents and summarise what applies to your project, including whether permitted development is available.
Three Rivers District Council website · All local planning authorities
Source: planning.data.gov.uk (Ministry of Housing, Communities and Local Government) (Open Government Licence v3.0) · Retrieved 2026-10-09