England · Local authority

Three Rivers District Council
Planning applications.

Explore collected planning applications and decisions for Three Rivers District Council. Search an address, application reference or proposal to find a record.

Collected application statistics

Collected records · All available dates

1,400Searchable applications

256Recorded as pending

86%Approval rate · 713 approved or refused records

103Refused applications

610 approved · 103 refused · 54 withdrawn. Received dates in our records: 19 Oct 2022 to 22 Sept 2026. Most recent record check: 28 Sept 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Planning information Planning Local plan Stephen Giles-Medhurst OBE Pre-application advice Pre-application advice Conservation areas Protected trees

Council contacts

Planning enquiriesenquiries@threerivers.gov.uk Council source
Planning enquiriesenquireplan@threerivers.gov.uk Council source
General council enquiriesplanning.enforcement@threerivers.gov.uk Council source

Contact details were found on council pages. Check the source for opening hours and which enquiries the service handles.

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas18 mapped area records

Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

Decided26/0430/FUL
Variation of condition 3 (Materials) pursuant to planning permission 25/1016/FUL to allow alterations to external materials including brick and render, and replacement of rooftiles.
Englewood East Lane Bedmond Abbots Langley Hertfordshire WD5 0QG
Received 16 Mar 2026
Decided26/0431/FUL
Demolition of existing conservatory, detached garage, store, shed, construction of two storey and rear side extension and alterations to fenestration detail.
37 Gallows Hill Lane Abbots Langley Hertfordshire WD5 0DB
Received 16 Mar 2026
Decided26/0432/FUL
Construction of single storey side extension, internal alterations and alterations to fenestration; installation of solar panels
The Turbine House Hampermill Lane Oxhey Hall Watford Hertfordshire WD19 4PL
Received 16 Mar 2026
Decided26/0433/FUL
Construction of first floor side extension, loft conversion and extension including rear juliet dormer and front rooflights
333 Toms Lane Kings Langley Hertfordshire WD5 0RA
Received 16 Mar 2026
Decided26/0434/FUL
Demolition of existing front and side extension including outbuilding and construction of single storey front, side and rear extension
1 Caldwell Road South Oxhey Watford Hertfordshire WD19 6EP
Received 16 Mar 2026
Decided26/0435/CLPD
Certificate of Lawfulness Proposed Development: Construction of single storey side extension, loft conversion including rear dormer and front rooflights
Foyers Flaunden Lane Belsize Rickmansworth Hertfordshire WD3 4NS
Received 16 Mar 2026
Unknown26/0436/DDD
T1) Walnut - 5 day exemption - diseased/dying tree - Leaning- Major decay present at base of tree - Fell to ground level
Woodcroft Cherry Hill Loudwater Rickmansworth Hertfordshire WD3 4JT
Received 13 Mar 2026
Decided26/0438/FUL
Demolition of existing conservatory, rear projection, and detached garage; and construction of single storey rear extension, and windows to side elevation
42 Greenfield Avenue Carpenders Park Watford Hertfordshire WD19 5DN
Received 16 Mar 2026
Decided26/0440/FUL
Variation of Conditions 2 (Plans) pursuant to planning permission 21/2153/FUL to allow revised boundary treatments; driveway access, front and side access gates and walls, planting layout; removal of condition 8 (Details of Gates)
13 Heathside Road Moor Park Northwood Hertfordshire HA6 2EE
Received 16 Mar 2026
Decided26/0441/CLED
Certificate of Lawfulness Existing Use: Construction of swimming pool, single storey pool house, plant room and associated hard standing
Moorwood Gate Berry Lane Chorleywood Rickmansworth Hertfordshire WD3 5EY
Received 16 Mar 2026
Unknown26/0442/TCA
Tree Number- T1Species- Norway Maple (Acer platanoides) Height ? 12mLateral Spread- 8mApprox DBH- 0.3mWork Required:Reduce height by approximately 4m and lateral spread on all sides by approximately 2m to finished crown dimensions of 8m height and 4m lateral spread.Reason:To manage the size of the tree for its location.Tree Number ? T2Species- False acacia (Robinia pseudoacacia)Height- 16mLateral Spread-10mApprox DBH- 0.5mWork required:Remove all major deadwood over 40mm in diameter. Reason:To remove hazardous branches due to the proximity to targets.
Upmeads Berry Lane Chorleywood Rickmansworth Hertfordshire WD3 5EY
Received 17 Mar 2026
Unknown26/0445/TPO
Tree Number - T1Tree Type - Hornbeam (Carpinus betulus) Approx. Diameter at 1.5m - 0.4m Approx. Height - 16mApprox. Crown Spread Diameter - 12mLocation - See map Service - Crown ReductionWork Required - Reduce height by up to 6m and lateral spread on all sides by up to 4m, to finished crown dimensions of 10m height and 4m lateral spreadReason - As per clients request Priority Code - ON
153 Valley Road Rickmansworth Hertfordshire WD3 4BR
Received 17 Mar 2026
Decided26/0446/CLPD
Certificate of Lawfulness Proposed Development: Loft conversion including rear dormer and front rooflights, window to side elevation
54 Frankland Road Croxley Green Rickmansworth Hertfordshire WD3 3AU
Received 17 Mar 2026
Decided26/0447/FUL
Demolition of existing bunker, garage, shed, and lean-to extension and construction of a single storey side and rear extension, window to side elevation and internal alterations
48 Woodland Road Maple Cross Rickmansworth Hertfordshire WD3 9SU
Received 18 Mar 2026
Decided26/0448/CLPD
Certificate of Lawfulness Proposed Development: Conversion of garage into habitable accommodation
17 Edson Close Leavesden Watford Hertfordshire WD25 7BX
Received 18 Mar 2026
Unknown26/0450/TCA
T1 Silver Birch - Reduce size of crown height by reducing all live, over-extended branches by 1-2m - entire canopy.T2 Purple Leaf Plum - Reduce all live, interfering, over-extended branches, 1m length reduction, growing toward garden (back tofence line)T3 Cherry - Reduce live, interfering, over-extended branches as needed, 2m length reduction, growing toward neighbouring property.T4 Acacia - Reduce and/or remove live, interfering branches as needed, growing toward and over garden area.T5 Hawthorn - Reduce all live, interfering branches, 1-2m length reduction, entire canopy and remove dead, declining branches as needed, entire canopy.Reason for all above listed works: part of a cyclical maintenance plan to ensure the overall health and safety of the trees.
101 Oaklands Avenue Oxhey Hall Watford Hertfordshire WD19 4TN
Received 18 Mar 2026
Unknown26/0451/TPO
T1 Remove Beech (10-12m) down to ground level/safe height due to ganoderma at base.The base of the tree has crumbling bark and shows signs of butt rot. Concerns of structural instabilityIt is situated on the roadside boundary and needs to be removed for safety reasons. Replanting will take place
Spinneys Harefield Road Rickmansworth Hertfordshire WD3 1PS
Received 19 Mar 2026
Decided26/0452/RSP
Part Retrospective: Demolition of existing garage, and single storey rear extension and construction of single storey front, side and rear extension
31 Lauderdale Road Hunton Bridge Kings Langley Hertfordshire WD4 8QA
Received 19 Mar 2026
Decided26/0453/CLPD
Certificate of Lawfulness Proposed Development: Construction of front porch and conversion of garage into habitable accommodation
149A Harrow Way Carpenders Park Watford Hertfordshire WD19 5EP
Received 19 Mar 2026
Decided26/0454/NMA
Non-material amendment to planning permission 25/1545/FUL to replace the approved window in the consented scheme with the retention of the existing double doors, maintaining the existing access route to the front of the post room.
Warner Bros. Studios Leavesden Warner Drive Watford Hertfordshire WD25 7LP
Received 19 Mar 2026
Decided26/0455/FUL
Demolition of existing outbuildings and construction of an outbuilding and bike store
42A Denham Way Maple Cross Rickmansworth Hertfordshire WD3 9SP
Received 19 Mar 2026
Decided26/0456/FUL
Demolition of existing front porch, side extension and rear conservatory; construction of single storey front,side and rear extension
59 The Fairway Abbots Langley Hertfordshire WD5 0JY
Received 19 Mar 2026
Decided26/0457/PDNA
Prior Notification: Erection of tractor and equipment store, 2no. polytunnels, potting shed, agricultural building
Land To The North And West Of Cottage Farm Redhall Lane Chandlers Cross WD3 4LT
Received 19 Mar 2026
Decided26/0458/CLPD
Certificate of Lawfulness Proposed Development: Construction of single storey rear infill extension
219 Uxbridge Road Rickmansworth Hertfordshire WD3 8DP
Received 19 Mar 2026

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

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Researching a proposal in Three Rivers District Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides

Understanding planning · 13 min read
Planning application documents: what to read first
Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.
UK research
Published 16 Jul 2026Updated 13 Sept 2026
Understanding planning · 13 min read
Planning permission drawings: how to read plans
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.
UK research
Published 6 Aug 2026Updated 13 Sept 2026
Property research · 13 min read
Planning approval rates: how to read council statistics
Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.
UK research
Published 13 Aug 2026Updated 13 Sept 2026

What these statistics cover

These figures describe applications collected by PlanningTrack for Three Rivers District Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage