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Planning application

4 Dawes Avenue, Isleworth, TW7 7JT

Granted Hounslow PA/2025/3597 Prior Approval Larger Home Extension

Works: Extension

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

Proposal

Ground floor rear extension 6.00 metres deep, maximum height 3.28 metres, 2.77 metres high to the eaves.

As published by the council, reference PA/2025/3597

Application record

Reference
PA/2025/3597
Type
Prior Approval Larger Home Extension
Status
Decided: PRIOR APPROVAL DOES NOT COMPLY
Decision
PRIOR APPROVAL DOES NOT COMPLY
Received
2 Dec 2025
Validated
2 Dec 2025
Decided
6 Jan 2026
Ward
Isleworth
Postcode
TW7 7JT

Site history

Applications at this address on the Hounslow register

This site has had 3 applications since 2025: 2 approved, 0 refused.

  • P/2026/2374 Awaiting decision

    4 Dawes Avenue, Isleworth, TW7 7JT

    Non material amendment to change the flat roof to a pitched roof of planning permission P/2026/1102 approved 29/07/2026 for the erection of a single storey rear extension to the house.

    Submitted 17 Aug 2026 Amendments
  • P/2026/1102 Granted

    4 Dawes Avenue, Isleworth, TW7 7JT

    Erection of a single storey rear extension to the house.

    Decided 29 Jul 2026 Householder

Timeline

Dates from the published record

  1. 2 Dec 2025

    Received by Hounslow

  2. 6 Jan 2026

    Decision issued: PRIOR APPROVAL DOES NOT COMPLY

  3. 12 Aug 2026

    Added to PlanIndex

Documents

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

6 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 this grant of permission means

Hounslow granted permission on 6 January 2026, 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 prior approval applications

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 4 Dawes Avenue, Isleworth, TW7 7JT

    P/2026/2374 Submitted 17 Aug 2026 0m away

    83% historically approved · decision due ~12 Oct

    Non material amendment to change the flat roof to a pitched roof of planning permission P/2026/1102 approved 29/07/2026 for the erection of a single storey rear extension to the house.

    Awaiting decision Amendments Extension 5 docs
    Small domestic
  • 4 Dawes Avenue, Isleworth, TW7 7JT

    P/2026/1102 Submitted 7 Apr 2026 0m away

    Erection of a single storey rear extension to the house.

    Granted Householder Extension 46 docs
    Small domestic
  • 7 DAWES AVENUE, ISLEWORTH, TW7 7JU

    P/2021/2897 Submitted 15 Jul 2021 34m away

    Erection of a single storey outbuilding with storage area and communal space.

    Granted Householder 6 docs
    Small domestic
  • 7 DAWES AVENUE, ISLEWORTH, TW7 7JU

    P/2021/2747 Submitted 6 Jul 2021 34m away

    Certificate of Lawfulness for the erection of a rear roof extension incorporating hip to gable conversion, with four front roof windows to the house

    Granted Lawful development Extension Loft or dormer +1 5 docs
  • 294 Twickenham Road, Isleworth, TW7 7DU

    P/2025/0643 Submitted 28 Feb 2025 53m away

    dropped kerb outside of 294 twickenham road for a disabled driver

    Withdrawn Householder 5 docs
    Small domestic
  • 6 Woodstock Avenue, Isleworth, TW7 7JF

    P/2026/0848 Submitted 13 Mar 2026 96m away

    Retrospective planning permission for the conversion of the existing single family house to two residential houses with associated private amenity space, refuse storage and cycle storage.

    Refused Full applications 14 docs

In Hounslow

  • PA/2026/2167 Granted

    2 Church Walk, Brentford, TW8 8DB

    Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.

    24 Jul 2026 Prior approval
  • PA/2026/2475 Awaiting decision

    4 Upton Road, Hounslow, TW3 3HP

    GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves

    1 Sep 2026 Prior approval
  • PA/2026/2481 Awaiting decision

    6 Speart Lane, Hounslow, TW5 9EF

    Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

    1 Sep 2026 Prior approval
  • PA/2026/2458 Awaiting decision

    82 Ringway, Southall, UB2 5SU

    Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.

    28 Aug 2026 Prior approval
  • PA/2026/2461 Awaiting decision

    24 Kingston Avenue, Feltham, TW14 9SL

    Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.

    28 Aug 2026 Prior approval