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Planning application

12 Legrace Avenue, Hounslow, TW4 7RS

Granted Hounslow P/2025/3790 Lawful Development Certificate (Proposed)

Works: Extension Loft or dormer Windows or glazing 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

Certificate of lawfulness proposed for the erection of a hip to gable and rear roof extension with three front roof windows and Juliette balcony, a front porch and a single storey detached outbuilding in the rear garden of the house

As published by the council, reference P/2025/3790

Application record

Reference
P/2025/3790
Type
Lawful Development Certificate (Proposed)
Status
Decided: GRANT
Decision
Granted As published: GRANT
Received
22 Dec 2025
Validated
4 Mar 2026
Decided
7 May 2026
Ward
Cranford
Postcode
TW4 7RS

Site history

Applications at this address on the Hounslow register

This site has had 4 applications since 2025: 2 approved, 1 refused.

  • P/2026/2470 Awaiting decision

    12 Legrace Avenue, Hounslow, TW4 7RS

    Erection of a two storey side extension, single storey rear extension and part first floor rear extension, together with a hip to gable roof extension, rear roof extension incorporating a Juliet balcony, and installation of four front roof windows to the house

    Submitted 28 Aug 2026 Householder
  • P/2026/0887 Refused

    12 Legrace Avenue, Hounslow, TW4 7RS

    Erection of a two-storey side and part first, part single storey rear extension. Erection of a rear roof extension with hip to gable conversion and a Juliet balcony, four front roof windows, and a front porch to the house.

    Decided 23 Jun 2026 Householder
  • PA/2025/3789 Granted

    12 Legrace Avenue, Hounslow, TW4 7RS

    Ground floor rear extension 6.00 metres deep, maximum height of 3.50 metres, 2.70 metres high to the eaves

    Decided 29 Jan 2026 Prior approval

Timeline

Dates from the published record

  1. 22 Dec 2025

    Received by Hounslow

  2. 4 Mar 2026

    Validated

    Checked as complete and ready for consideration.

  3. 7 May 2026

    Decision issued: GRANT

  4. 12 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.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Hounslow granted permission on 7 May 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

  • 12 Legrace Avenue, Hounslow, TW4 7RS

    P/2026/0887 Submitted 17 Mar 2026 50 yards away

    Erection of a two-storey side and part first, part single storey rear extension. Erection of a rear roof extension with hip to gable conversion and a Juliet balcony, four front roof windows, and a front porch to the house.

    Refused Householder Extension Loft or dormer +1 6 docs
    Small domestic
  • 12 Legrace Avenue, Hounslow, TW4 7RS

    P/2026/2470 Submitted 28 Aug 2026 50 yards away

    75% historically approved · decision due ~23 Oct

    Erection of a two storey side extension, single storey rear extension and part first floor rear extension, together with a hip to gable roof extension, rear roof extension incorporating a Juliet balcony, and installation of four front roof windows to the house

    Awaiting decision Householder Extension Loft or dormer +1 4 docs
    Small domestic
  • 12 Legrace Avenue, Hounslow, TW4 7RS

    PA/2025/3789 Submitted 22 Dec 2025 50 yards away

    Ground floor rear extension 6.00 metres deep, maximum height of 3.50 metres, 2.70 metres high to the eaves

    Granted Prior approval Extension 5 docs
  • 18 BASILDENE ROAD, HOUNSLOW, TW4 7LE

    PA/2021/2770 Submitted 7 Jul 2021 50 yards away

    Ground floor rear extension 6.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

    Granted Prior approval Extension 4 docs
  • 100 LELA AVENUE, HOUNSLOW, TW4 7RY

    PA/2021/3167 Submitted 3 Aug 2021 100 yards away

    Ground floor rear extension 6 metres deep, maximum height of 3 metres, 2.8 metres high to the eaves

    Granted Prior approval Extension 6 docs
  • 18 Kevin Close, Hounslow, TW4 7RX

    P/2024/3070 Submitted 13 Sep 2024 100 yards away

    Proposal for the erection of a two-storey side and part two-storey rear extension.

    Granted Householder Extension 11 docs
    Domestic

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