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Planning application

148 Cardington Square, Hounslow, TW4 6AL

Granted Hounslow P/2025/3510 Lawful Development Certificate (Proposed)

Works: Extension Loft or dormer Windows or glazing

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

Proposal

Certificate of lawfulness proposed for a hip to gable conversion and erection of a rear roof extension with three front roof windows to the house.

As published by the council, reference P/2025/3510

Application record

Reference
P/2025/3510
Type
Lawful Development Certificate (Proposed)
Status
Decided: GRANT
Decision
Granted As published: GRANT
Received
21 Nov 2025
Validated
25 Nov 2025
Decided
20 Jan 2026
Ward
Hounslow West
Postcode
TW4 6AL

Site history

Applications at this address on the Hounslow register

This site has had 2 applications since 2025: 1 approved, 1 refused.

  • P/2025/3681 Refused

    148 Cardington Square, Hounslow, TW4 6AL

    Erection of a part first floor rear extension to the house.

    Decided 14 May 2026 Householder

Timeline

Dates from the published record

  1. 21 Nov 2025

    Received by Hounslow

  2. 25 Nov 2025

    Validated

    Checked as complete and ready for consideration.

  3. 20 Jan 2026

    Decision issued: GRANT

  4. 12 Aug 2026

    Added to PlanIndex

Documents

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

8 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

Hounslow granted permission on 20 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 lawful development applications

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 148 Cardington Square, Hounslow, TW4 6AL

    P/2025/3681 Submitted 11 Dec 2025 50 yards away

    Erection of a part first floor rear extension to the house.

    Refused Householder Extension 10 docs
    Domestic
  • 146 Cardington Square, Hounslow, TW4 6AL

    P/2024/3832 Submitted 16 Nov 2024 50 yards away

    Erection of a porch extension.

    Refused Householder Extension 8 docs
    Small domestic
  • 146 Cardington Square, Hounslow, TW4 6AL

    P/2025/0227 Submitted 23 Jan 2025 50 yards away

    Erection of a front porch extension compromising of a cabin vehicle.

    Withdrawn Householder Extension 10 docs
    Small domestic
  • 154 CARDINGTON SQUARE, HOUNSLOW, TW4 6AL

    PA/2023/1097 Submitted 5 Apr 2023 50 yards away

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

    Granted Prior approval Extension 6 docs
  • FLAT GROUND FLOOR 18 HINTON AVENUE, HOUNSLOW, TW4 6AR

    P/2023/0685 Submitted 2 Mar 2023 50 yards away

    Formation of a vehicular access to the front of the house

    Withdrawn Householder 4 docs
    Domestic
  • 24 HINTON AVENUE, HOUNSLOW, TW4 6AR

    PA/2023/0038 Submitted 4 Jan 2023 50 yards away

    Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.95 metres high to the eaves

    Withdrawn Prior approval Extension 6 docs

In Hounslow

  • P/2026/2813 Awaiting decision

    150 Wood Lane, Isleworth, TW7 5EQ

    (GSGS877009741) Certificate of lawfulness proposed for the erection of a single storey outbuilding to be used as a home gym / playroom / shed in the rear garden of the house

    Received 5 Oct, published by the council 9 Oct 2026 Lawful development
  • P/2026/2334 Granted

    69 Central Avenue, Hounslow, TW3 2QW

    Certificate of lawfulness for the proposed hip to gable conversion and erection of rear roof extension with three front roof windows to the house.

    Received 12 Aug, published by the council 16 Aug 2026 Lawful development
  • P/2026/2459 Granted

    2 Letchworth Avenue, Feltham, TW14 9RY

    Certificate of Lawfulness for the proposed hip to gable roof conversion, installation of two front roof windows, and erection of a rear roof extension to the existing house.

    Received 28 Aug, published by the council 5 Sep 2026 Lawful development
  • P/2026/2787 Awaiting decision

    13 Denbigh Road, Hounslow, TW3 4DU

    Certificate of Lawfulness for the proposed erection of a detached outbuilding in the rear garden.

    Received 1 Oct, published by the council 9 Oct 2026 Lawful development
  • P/2026/2790 Awaiting decision

    14 Old Farm Close, Hounslow, TW4 7AB

    Certificate of lawfulness for the proposed erection of a rear roof extension and two front roof windows to the house.

    Received 1 Oct, published by the council 6 Oct 2026 Lawful development