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Planning application

26/0891/PDE

20 Copthorne Road Croxley Green Rickmansworth Hertfordshire WD3 4AQ

Granted Three Rivers PD - Extensions

Proposal

Prior Approval: Single storey rear extension (depth 7.50 metres, maximum height 3.80 metres, maximum eaves height 2.80 metres)

As published by the council, reference 26/0891/PDE

Timeline

Dates from the published record

  1. 1 Jun 2026

    Received by Three Rivers

  2. 2 Jun 2026

    Validated

    Checked as complete and ready for consideration.

  3. 7 Jul 2026

    Decision issued: no objection

  4. 24 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About outline applications

How this application type works

An outline application tests the principle of developing a site before the detail is worked up. Some or all of the particulars, such as appearance, layout, scale, access and landscaping, are held back as reserved matters for later approval. Permission at outline stage does not by itself allow building to start; the reserved matters must be approved first.

More on outline applications in our guide

Nearby applications

Within 500 metres

  • 26/0965/DIS Decided

    Downfield 49 Copthorne Road Croxley Green Rickmansworth Hertfordshire WD3 4AH

    Discharge of conditions 5 (Tree Method Statement) and 6 (Hard and Soft Landscaping) pursuant to planning permission 26/0547/FUL

    12 Jun 2026 88m away Conditions
  • 26/0678/FUL Granted

    16A Copthorne Road Croxley Green Rickmansworth Hertfordshire WD3 4AE

    Demolition of existing garage and outbuilding, construction of two storey front and side extensions; single storey side and rear extensions; omission of rear balconies and replacement with rear juliet balconies, internal alterations and alterations to fenestration; alterations to driveway; extension of rear patio area; alteration of external materials including render and cladding; alteration of front entrance

    27 Apr 2026 103m away Full applications
  • 23/2104/DIS Decided

    28 Copthorne Road Croxley Green Rickmansworth Hertfordshire WD3 4AQ

    Discharge of Condition 5 (Materials) pursuant to planning permission 23/1165/FUL

    8 Dec 2023 119m away Conditions
  • 24/0093/DDD Granted

    Elmcote House The Green Croxley Green Rickmansworth Hertfordshire WD3 3HN

    Elm - T52 - removal

    10 Jan 2024 152m away Trees
  • 26/0297/FUL Granted

    1 Green Lane Croxley Green Rickmansworth Hertfordshire WD3 3HR

    Variation of Condition 2 (Plans) pursuant to planning permission 24/0795/FUL to include alterations to fenestration detail; and the provision of solar panels.

    24 Feb 2026 166m away Full applications
  • 22/1124/DDD Granted

    Wildfell Green Lane Croxley Green Rickmansworth Hertfordshire WD3 3HR

    Ash - bottom of back garden, showing signs of Ash Dieback disease - remove

    6 Jun 2022 178m away Trees

In Three Rivers

  • 26/1040/PDE Withdrawn

    90 Sherborne Way Croxley Green Rickmansworth Hertfordshire WD3 3PG

    Prior Approval: Single storey rear extension (depth 5.00 metres, maximum height 2.90 metres, maximum eaves height 2.90 metres)

    26 Jun 2026 Outline
  • 26/0982/PDE Granted

    2 On The Hill Carpenders Park Watford Hertfordshire WD19 5DR

    Prior Approval: Demolition of existing extension and construction of single storey rear extensions. (Maximum depth: 6.00m, Maximum height: 3.45m, Maximum eaves height: 3.00m).

    17 Jun 2026 Outline
  • 26/1115/EIAS Awaiting decision

    Land Off Long Lane Heronsgate Hertfordshire

    Environmental Impact Assessment Scoping Opinion Request - Development of up to 650 residential dwellings, primary school, local centre uses, community uses, public open space, drainage and infrastructure and, associated vehicular access.

    9 Jul 2026 Outline
  • 26/0920/PDE Granted

    87 Durrants Drive Croxley Green Rickmansworth Hertfordshire WD3 3NY

    Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 3.00 metres, maximum eaves height 3.00 metres)

    4 Jun 2026 Outline
  • 26/1077/PDE Awaiting decision

    36 Girton Way Croxley Green Rickmansworth Hertfordshire WD3 3QN

    Prior Approval: Single storey rear extension (depth 5.75 metres, maximum height 3.45 metres, maximum eaves height 3.45 metres)

    3 Jul 2026 Outline