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Planning application

3 Colne Avenue Rickmansworth Hertfordshire WD3 8BS

Granted Three Rivers 23/1296/PDE PD - Extensions

Works: Extension Small domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Prior Approval: Single storey rear extension (depth 4.50 metres, maximum height 4 metres, maximum eaves height 3 metres)

As published by the council, reference 23/1296/PDE

Application record

Reference
23/1296/PDE
Type
PD - Extensions
Status
Decided
Decision
approved
Received
2 Aug 2023
Validated
2 Aug 2023
Decided
8 Sep 2023
Ward
Penn And Mill End
Parish
Non-Parished
Decision by
Delegated Decision
Postcode
WD3 8BS

Timeline

Dates from the published record

  1. 2 Aug 2023

    Received by Three Rivers

  2. 8 Sep 2023

    Decision issued: approved

  3. 19 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

5 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

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

  • 1A Grove Road Mill End Rickmansworth Hertfordshire WD3 8EB

    26/0033/FUL Submitted 12 Jan 2026 76m away

    Extensions to existing ground floor and extensions to create first and second floor accommodation, including rear dormer window, to provide 1no. self contained residential dwelling.

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  • 10 Grove Road Mill End Rickmansworth Hertfordshire WD3 8ED

    26/1256/CLPD Submitted 5 Aug 2026 80m away

    88% historically approved · decision due ~6 Oct

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  • 25 Colne Avenue Rickmansworth WD3 8BS

    21/0359/FUL Submitted 17 Feb 2021 81m away

    Single storey side and rear extension

    Granted Full applications Extension 9 docs
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  • 38 Maxwell Close Mill End Rickmansworth Hertfordshire WD3 8BP

    23/1147/FUL Submitted 10 Jul 2023 133m away

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  • 327 Uxbridge Road Rickmansworth Hertfordshire WD3 8DS

    23/1939/FUL Submitted 16 Nov 2023 137m away

    Demolition of existing conservatory and garage, construction of single storey side and rear extension; construction of front porch.

    Granted Full applications Extension Demolition 11 docs
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  • 51 Grove Road Mill End WD3 8EB

    21/0710/FUL Submitted 19 Mar 2021 150m away

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    Granted Full applications Extension 7 docs
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In Three Rivers

  • 26/0694/PDT Granted

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    28 Apr 2026 Outline
  • 26/0721/PDE Withdrawn

    45 Watford Road Croxley Green Rickmansworth Hertfordshire WD3 3DS

    Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 3.15 metres, maximum eaves height 3.00 metres)

    5 May 2026 Outline
  • 26/0746/PDE Granted

    15 Bramley Gardens South Oxhey Watford Hertfordshire WD19 6YD

    Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 2.90 metres, maximum eaves height 2.80 metres)

    11 May 2026 Outline
  • 26/0781/NAC Granted

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

    Neighbouring Authority Consultation: Watford Borough Council - Details submitted for Condition 23 (partial discharge phase 1 Surface Water Drainage) pursuant to planning permission 23/01023/VARM

    14 May 2026 Outline
  • 26/0927/OUT Awaiting decision

    167 Valley Road Rickmansworth Hertfordshire WD3 4BR

    Outline Application: Demolition of existing dwelling and outbuildings, subdivision of site and construction of 2no. two storey detached dwellings with accommodation in the loft space, with associated parking (Appearance and, Landscaping as reserved matters)

    8 Jun 2026 Outline