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610 approved · 103 refused · 54 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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

Unknown26/1317/TPO
Beech (T5) - Crown lift to achieve clearance of 5.5 metres over the private highway Copthorne Road in order to remove obstruction to vehicles and especially HGVs which regularly use the road for refuse collection.Beech (T8) - Crown lift to achieve clearance of 5.5 metres over the private highway Copthorne Road in order to remove obstruction to vehicles and especially HGVs which regularly use the road for refuse collection.Beech (T11) - Crown lift to achieve clearance of 5.5 metres over the private highway Copthorne Road in order to remove obstruction to vehicles and especially HGVs which regularly use the road for refuse collection.
1 Uplands Croxley Green Rickmansworth Hertfordshire WD3 4RD
Received 17 Aug 2026
Unknown26/1318/TPO
Beech (T8) - Whole crown reduction by 4 metres in order to reduce the risk of limb failure and improve the overall structural balance and form of the tree. This is in line with the approval of a reduction in height for the same amount for beech (T5) which is a very similar tree and next to T8 (LCS/26/0564/TPO).Beech (T11) - Reduce overhanging branches growing towards the house in order to provide 2 metres of clearance. This will reduce the risk of limb failure especially as these overhang a residential garden that is used by a young family. This was previously granted in LCS/18/1899/TPO, but the application has lapsed.
1 Uplands Croxley Green Rickmansworth Hertfordshire WD3 4RD
Received 17 Aug 2026
Pending Consideration26/1319/DIS
Discharge of Condition 4 (Deliver Soft Landscaping) pursuant to planning permission 24/0788/AOD
Former Little Furze Junior Mixed Infants School Gosforth Lane South Oxhey Hertfordshire
Received 18 Aug 2026
Pending Consideration26/1320/DIS
Discharge of Conditions 6 (Maintain Hard Landscaping and Roads) and 7 (Car Parking Management Plan) pursuant to planning permission 24/0788/AOD
Former Little Furze Junior Mixed Infants School Gosforth Lane South Oxhey Hertfordshire
Received 18 Aug 2026
Pending Consideration26/1321/RSP
Part retrospective: Construction of a part single, part two storey side extension; loft conversion including with a rear dormer and front roof light; internal alterations; alterations to the fenestration; alterations to external materials; conversion of garage to habitable accommodation.
10 Hyde Lane Nash Mills Hemel Hempstead Hertfordshire HP3 8RY
Received 18 Aug 2026
Unknown26/1322/TPO
1 x Weeping Beech (T2) to remove in sections to ground level Twin stem tree with upper canopy on both stems which is dead. Recent limb failure has unbalanced the tree. Black staining on trunk. Tree is located next to driveway & garden path
Auburn Mere Residential Home Oxhey Lane Carpenders Park Watford Hertfordshire WD19 5RE
Received 18 Aug 2026
Unknown26/1323/TCA
Tree Number - T1Tree Type - Lombardy poplar (Populus nigra) Approx. Diameter at 1.5m - 0.5m Approx. Height - 30mApprox. Spread Diameter - 8mLocation - See map Service - Reduce heightWork Required - Reduce height by approximately 15m, back to previous pruning points at approximately 15m.Reason - Sounding test of base of tree indicates cavities. Reduction to reduce stresses on stems Priority Code - BTree Number - T2Tree Type - Lombardy poplar (Populus nigra) Approx. Diameter at 1.5m - 0.5m Approx. Height - 30mApprox. Spread Diameter - 8mLocation - See map Service - Reduce heightWork Required - Reduce height by approximately 15m, back to previous pruning points at approximately 15m.Reason - Sounding test of base of tree indicates cavities. Reduction to reduce stresses on stems Priority Code - BTree Number - T3Tree Type - Lombardy poplar (Populus nigra) Approx. Diameter at 1.5m - 0.5m Approx. Height - 30mApprox. Spread Diameter - 8mLocation - See map Service - Reduce heightWork Required - Reduce height by approximately 15m, back to previous pruning points at approximately 15m.Reason - Sounding test of base of tree indicates cavities. Reduction to reduce stresses on stems Priority Code - B
12 South Approach Moor Park Northwood Hertfordshire HA6 2ET
Received 18 Aug 2026
Pending Consideration26/1324/CLPD
Certificate of Lawfulness Proposed Development: Change of use from Class E(c)(iii) to Class E(b)
Former Sportsman Hotel Station Approach Chorleywood Hertfordshire
Received 18 Aug 2026
Pending Consideration26/1325/FUL
Alterations to fenestration
The Annexe 70 The Mead Carpenders Park Watford Hertfordshire WD19 5BU
Received 18 Aug 2026
Pending Consideration26/1326/FUL
Construction of part single part two storey side and rear extension; partial conversion of garage into habitable accommodation; construction of front porch and alterations to the fenestration
6 Mutchetts Close Garston Watford Hertfordshire WD25 9TS
Received 18 Aug 2026
Pending Consideration26/1328/FUL
Construction of single storey rear extension including an extension to the existing roof and the insertion of dormers to the front, sides and rear, single storey front infill extension, increase in land levels to the front and construction of a raised patio to rear
109 Greenfield Avenue Carpenders Park Watford Hertfordshire WD19 5DG
Received 19 Aug 2026
Awaiting decision26/1330/PDE
Prior Approval: Construction of single storey rear extension (depth 4.5m, maximum height 3.3m, maximum eaves height 2.8m)
2 Ashburnham Close South Oxhey Watford Hertfordshire WD19 7PY
Received 18 Aug 2026
Pending Consideration26/1334/DIS
Discharge of Condition 3 (In Accordance With Approved Details) pursuant to planning permission 24/1479/FUL (25/0011/REF)
Cartref Ormonde Road Moor Park Northwood Hertfordshire HA6 2EJ
Received 19 Aug 2026
Pending Consideration26/1336/FUL
Installation of lightning conductor tape
Chapel Royal Masonic School Rickmansworth Park Rickmansworth Hertfordshire
Received 19 Aug 2026
Pending Consideration26/1337/LBC
Listed Building Consent: Installation of lightning conductor tape.
Chapel Royal Masonic School Rickmansworth Park Rickmansworth Hertfordshire
Received 19 Aug 2026
Pending Consideration26/1338/FUL
Erection of new vehicular access onto Chorleywood Road including alterations to the front boundary wall
Talland Chorleywood Road Rickmansworth Hertfordshire WD3 4ER
Received 19 Aug 2026
Pending Consideration26/1339/FUL
Construction of part-single, part two storey side front and rear extensions; conversion of garage into habitable accommodation; alterations to the front porch; alterations to the fenestration; alterations to external materials including render to front elevation; internal alterations; alterations to the patio
1 Plaitford Close Rickmansworth Hertfordshire WD3 1NJ
Received 19 Aug 2026
Pending Consideration26/1340/PDNA
Prior Notification Agriculture: Construction of agricultural building for horticultural purposes
Land To The North And West Of Cottage Farm Redhall Lane Chandlers Cross WD3 4LT
Received 20 Aug 2026
Pending Consideration26/1341/FUL
Construction of a two storey rear extension; alterations to the fenestration
75 Gallows Hill Lane Abbots Langley Hertfordshire WD5 0DD
Received 20 Aug 2026
Decided26/1343/CLPD
Certificate of Lawfulness Proposed Development: Conversion of garage into habitable accommodation
10 Hyde Lane Nash Mills Hemel Hempstead Hertfordshire HP3 8RY
Received 20 Aug 2026
Unknown26/1345/TCA
Various Tree Works
Dormers The Green Croxley Green Rickmansworth Hertfordshire WD3 3HX
Received 20 Aug 2026
Pending Consideration26/1347/DIS
Discharge of Condition 17 (Verification Report) pursuant to planning permission 20/2782/FUL
25 Wolsey Road And 26 North Approach Moor Park Hertfordshire HA6 2HN
Received 20 Aug 2026
Decided26/1348/DIS
Discharge of Condition 4 (Rooflight details) pursuant to planning permission 25/2136/FUL
Pixie House Nottingham Road Heronsgate Rickmansworth Hertfordshire WD3 5DN
Received 20 Aug 2026
Decided26/1349/DIS
Discharge of Condition 24 (Habitat Monitoring and Management) pursuant to planning permission 25/0896/FUL
Land At Woodside Road Abbots Langley Hertfordshire
Received 21 Aug 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