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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610 approved · 103 refused · 54 withdrawn.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 Counts reflect the last collected status; some records may be out of date.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 PlanningLocal plan Stephen Giles-Medhurst OBEPre-application advice Pre-application adviceConservation areas Protected trees

Council contacts

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

  1. Unknown26/0103/TPO

    T46 Ash:Specification- Pollard tree to natural pollard areas at 5m leaving tree at a height of 5m from ground level.Reasons for work: A large basal cavity is present. The cavity was probed revealing minimal residual wood and therefore compromising structural integrity. The tree was viewed in summer 2025 and vitality was in poor condition with sparse foliage density and crown dieback. Given its poor health and structural condition its the view its structural integrity is compromised. The tree is located in a risk location and is within falling distance of adjacent road, church and neighbouring property. The proposed works will reduce reduce the risks posed whislt retaing the tree to form a new crown at a safer height.

    Heron Cottage Stockport Road Heronsgate Rickmansworth Hertfordshire WD3 5DD

    Received 23 Jan 2026
  2. Decided26/0104/RSP

    Retrospective: Retention of pavement crossover

    Whitegates Harefield Road Rickmansworth Hertfordshire WD3 1PR

    Received 23 Jan 2026
  3. Unknown26/0106/TPO

    Works to tree in Carpenters Wood.

    Land Behind 10 Carpenters Wood Drive Chorleywood Rickmansworth Hertfordshire WD3 5RJ

    Received 26 Jan 2026
  4. Decided26/0107/ADV

    Advertisement Consent: Erection of 2no. free standing non-illuminated signs (10 year period)

    The Old School House Bridge Road Hunton Bridge Hertfordshire WD4 8RQ

    Received 26 Jan 2026
  5. Decided26/0108/FUL

    Demolition of existing outbuilding; erection of a single storey side and rear extension

    63 Orchard Avenue Abbots Langley Watford Hertfordshire WD25 7JG

    Received 26 Jan 2026
  6. Unknown26/0109/TPO

    seek permission to trim yew,and 2 oaks and remove diseased sycamore as advised in document

    165 Valley Road Rickmansworth Hertfordshire WD3 4BR

    Received 26 Jan 2026
  7. Decided26/0111/FUL

    Demolition of existing front porch and construction of a new single storey front porch

    Ennismore Station Approach Chorleywood Rickmansworth Hertfordshire WD3 5NE

    Received 26 Jan 2026
  8. Unknown26/0112/TCA

    T1 - Beech tree 30% crown reductionG1 - x3 Conifers to trim back to previous cutsT2 - Apple tree re-pollardT3 - Neighbours Elder back to boundaryT4 - Lilac reduce 40-50%T5 - Neighbours silver birch overhaning branches prunedT6 - Japanese maple light prune (10-20%)T7 - Oak tree to trim top back to previous and shape

    133 Oaklands Avenue Oxhey Hall Watford Hertfordshire WD19 4TN

    Received 26 Jan 2026
  9. Decided26/0113/DIS

    Discharge of Condition 11(Site investigation scheme) pursuant to planning permission 24/1137/FUL

    No.3 To No.6 Wolsey Business Park Watford Tolpits Lane WD18 9BL

    Received 26 Jan 2026
  10. Decided26/0114/NMA

    Non-Material Amendment to Condition 2 (Plans) of planning permission 25/1308/FUL to allow correction to plan numbers.

    Warner Bros. Studios Leavesden Warner Drive Watford Hertfordshire WD25 7LP

    Received 26 Jan 2026
  11. Unknown26/0115/TCA

    Scots pine tree. Requesting permission to lower height by up to a third and shape sympathetically.

    Advaita 4 Seven Acres Northwood HA6 3JZ

    Received 26 Jan 2026
  12. Decided26/0116/FUL

    Construction of two storey front extension including storm porch; first floor rear extension including alterations to roof of existing single-storey rear extension; rooflights, alterations to fenestration; erection of annexe outbuilding, alterations to rear landscaping including pergola pathway.

    53 Barton Way Croxley Green Rickmansworth Hertfordshire WD3 3PB

    Received 27 Jan 2026
  13. Decided26/0117/FUL

    Variation of Condition 2 (Plans) pursuant to planning permission 25/0046/FUL to allow removal of basement level and alterations to single storey rear extension

    44 Russell Road Moor Park Northwood Hertfordshire HA6 2LR

    Received 27 Jan 2026
  14. Decided26/0118/FUL

    Demolition of existing shed, storages and garage; construction of two-storey side extension and single-storey rear extension; loft conversion including rear dormer; construction of replacement garage; solar panels and heat pump

    62 Station Road Kings Langley Hertfordshire WD4 8LB

    Received 27 Jan 2026
  15. Decided26/0119/PDE

    Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 3.50 metres, maximum eaves height 2.50 metres)

    42 Greenfield Avenue Carpenders Park Watford Hertfordshire WD19 5DN

    Received 27 Jan 2026
  16. Decided26/0120/FUL

    Erection of a temporary building with external accesses for use as a conference centre within the Walled Garden (build period of 39 days to start on 20/04/26 and to be removed by 29/05/26)

    The Grove Grove Mill Lane Grove Mill Rickmansworth Hertfordshire WD3 4TG

    Received 27 Jan 2026
  17. Decided26/0121/CLPD

    Certificate of Lawfulness Proposed Development: Erection of front brick piers and metal gate

    39 Wolsey Road Moor Park Northwood Hertfordshire HA6 2ER

    Received 27 Jan 2026
  18. Decided26/0122/FUL

    Alterations to elevations of existing car park building to enclose upper floor for commercial use (Class E), including brickwork and windows; associated works including new ramp and staircase; and landscaping alterations.

    Trinity Court Church Street Rickmansworth Hertfordshire WD3 1RT

    Received 27 Jan 2026
  19. Unknown26/0123/TPO

    Tree number - G1Tree type - Lombardy Poplar (populus nigra italica) x2Approx Height - 20mLocation - Rear garden, Right hand boundary Service - Crown ReductionWork required- Crown reduce by removing 10m from height, back to previous points.Reason - To reduce risk of failure in strong winds.Priority code - A

    19B Heronsgate Road Chorleywood Rickmansworth Hertfordshire WD3 5BN

    Received 27 Jan 2026
  20. Unknown26/0124/TPO

    T11 and T12 require minor facilitative pruning. Simultaneously we request a tree crown reduction (25-30%)to maintainthe trees' natural shapes, reduce chances of future damage to the garage and improve light

    White Roses London Road Rickmansworth Hertfordshire WD3 1JR

    Received 26 Jan 2026
  21. Decided26/0125/RSP

    Retrospective: Replacement timber fencing to boundary, erection of new internal picket fencing and astro turf play area.

    The Old School House Bridge Road Hunton Bridge Hertfordshire

    Received 27 Jan 2026
  22. Decided26/0126/FUL

    Construction of part-single, part-two storey side extension, single storey front and rear extensions, erection of front bay windows, rooflight, render and rear landscaping works

    10 The Crescent Croxley Green Rickmansworth Hertfordshire WD3 3DU

    Received 27 Jan 2026
  23. Decided26/0129/CLPD

    Certificate of Lawfulness Proposed Development: Use of living room of existing dwelling for consultations/treatment purposes for up to three days per week, with appointments pre-booked in advance and only one client attending at any given time

    3 Hedges Way Croxley Green Rickmansworth Hertfordshire WD3 3FA

    Received 28 Jan 2026
  24. Unknown26/0130/TPO

    T1 Sweet Chestnut - remove lower epicormic growth extending over path (2.5m) and driveways and road (5m) to statutory height. Remove dead and broken branches hanging over public footpath and throughout crown. This work needs doing as it is a danger to the public.

    9 South Cottage Gardens Chorleywood Rickmansworth Hertfordshire WD3 5EH

    Received 28 Jan 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

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    Planning application documents: what to read first

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  • 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.

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  • 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.

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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.

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