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Planning application

Tarn Dunny Lane Belsize Kings Langley Hertfordshire WD4 9DQ

Granted Three Rivers 25/1146/PDT PD - Additional Storeys to dwellinghouse

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

Proposal

Prior approval: Enlargement of the dwellinghouse by the construction of one additional storey (2.65m height) and raising of roof ridge to result in an overall height of 8.33m (Class AA)

As published by the council, reference 25/1146/PDT

Application record

Reference
25/1146/PDT
Type
PD - Additional Storeys to dwellinghouse
Status
Decided
Decision
Granted As published: approved
Received
4 Jul 2025
Validated
4 Jul 2025
Decided
19 Aug 2025
Ward
Chorleywood North And Sarratt
Parish
Sarratt Parish Council
Decision by
Delegated Decision
Postcode
WD4 9DQ

Site history

Applications at this address on the Three Rivers register

This site has had 4 applications since 2025: 4 approved, 0 refused.

  • 25/1888/FUL Granted

    Tarn Dunny Lane Belsize Kings Langley Hertfordshire WD4 9DQ

    Construction of single storey rear extension; loft extension including increase in ridge height with front/rear dormers and front rooflights; relocation of entrance door, alterations to fenestration and internal alterations.

    Decided 18 Dec 2025 Full applications
  • 25/1504/CLPD Granted

    Tarn Dunny Lane Belsize Kings Langley Hertfordshire WD4 9DQ

    Certificate of Lawfulness Proposed Development: Enlargement of the dwellinghouse by the construction of one additional storey and single storey rear extension

    Decided 16 Oct 2025 Lawful development
  • 25/1123/PDE Granted

    Tarn Dunny Lane Belsize Kings Langley Hertfordshire WD4 9DQ

    Prior Approval: Single storey rear extension (depth 8.00 metres, maximum height 4.00 metres, maximum eaves height 2.75 metres)

    Decided 7 Aug 2025 Outline

Timeline

Dates from the published record

  1. 4 Jul 2025

    Received by Three Rivers

  2. 19 Aug 2025

    Decision issued: approved

  3. 19 Aug 2026

    Added to PlanIndex

Documents

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

17 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.

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Open the documents

What this grant of permission means

Three Rivers granted permission on 19 August 2025, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

About outline applications

An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

In Three Rivers

  • 26/1422/OUT Awaiting decision

    156 The Drive Rickmansworth Hertfordshire WD3 4DH

    Outline application: Construction of 2no. detached two-storey, self build dwellings, to the rear of No.156 The Drive with associated access, parking and landscaping works (Appearance and Scale reserved matters)

    Received 7 Sep, published by the council 18 Sep 2026 Outline
  • 26/1077/PDE Withdrawn

    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)

    Received 3 Jul, published by the council 24 Jul 2026 Outline
  • 26/0930/PDE Granted

    116 Penrose Avenue Carpenders Park Watford Hertfordshire WD19 5AA

    Prior Approval: Single storey rear extension (depth 6.00 metres, maximum height 2.81 metres, maximum eaves height 2.81 metres)

    Received 8 Jun, published by the council 24 Jul 2026 Outline
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    Prior Approval: Change of use of existing agricultural barn to one self contained residential dwelling with associated parking

    Received 3 Aug, published by the council 26 Aug 2026 Outline
  • 26/0694/PDT Granted

    The Bungalow Batchworth Heath Farm Batchworth Heath Rickmansworth Hertfordshire WD3 1QB

    Prior approval: Enlargement of the dwellinghouse by the construction of one additional storey (2.75m height) and raising of ridge to result in an overall height of 6.58m (Class AA)

    Received 28 Apr, published by the council 24 Jul 2026 Outline