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Planning application

11 Cranmore Avenue, Isleworth, TW7 4QW

Granted Hounslow P/2026/0786 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 for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows and the erection of a front porch to the house.

As published by the council, reference P/2026/0786

Application record

Reference
P/2026/0786
Type
Lawful Development Certificate (Proposed)
Status
Decided: GRANT
Decision
Granted As published: GRANT
Received
9 Mar 2026
Validated
9 Mar 2026
Decided
14 Apr 2026
Ward
Osterley & Spring Grove
Postcode
TW7 4QW

Site history

Applications at this address on the Hounslow register

This site has had 4 applications since 2019: 3 approved, 1 refused.

  • P/2026/1513 Granted

    11 Cranmore Avenue, Isleworth, TW7 4QW

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

    Decided 28 Jul 2026 Householder
  • PA/2026/0672 Granted

    11 Cranmore Avenue, Isleworth, TW7 4QW

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

    Decided 27 Mar 2026 Prior approval
  • PA/2019/3920 Refused

    11 CRANMORE AVENUE, ISLEWORTH, TW7 4QW

    Ground floor rear extension 6 metres deep, maximum height 3.6 metres, 2.9 metres high to the eaves

    Decided 27 Nov 2019 Prior approval

Timeline

Dates from the published record

  1. 9 Mar 2026

    Received by Hounslow

  2. 14 Apr 2026

    Decision issued: GRANT

  3. 12 Aug 2026

    Added to PlanIndex

Documents

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

10 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 14 April 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

  • 11 CRANMORE AVENUE, ISLEWORTH, TW7 4QW

    PA/2019/3920 Submitted 28 Oct 2019 50 yards away

    Ground floor rear extension 6 metres deep, maximum height 3.6 metres, 2.9 metres high to the eaves

    Refused Prior approval Extension 6 docs

  • 11 Cranmore Avenue, Isleworth, TW7 4QW

    PA/2026/0672 Submitted 26 Feb 2026 50 yards away

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

    Granted Prior approval Extension 9 docs

  • 11 Cranmore Avenue, Isleworth, TW7 4QW

    P/2026/1513 Submitted 20 May 2026 50 yards away

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

    Granted Householder Extension Loft or dormer +1 12 docs
    Small domestic

  • 12 CRANMORE AVENUE, ISLEWORTH, TW7 4QW

    P/2021/2494 Submitted 18 Jun 2021 50 yards away

    t1-Silver Birch Crown Reduction - Reducing the height and spread of the tree by up to 2m. Remove deadwood. General maintenance.

    Withdrawn Trees 2 docs

  • 2A CRANMORE AVENUE, ISLEWORTH, TW7 4QW

    P/2021/3333 Submitted 17 Aug 2021 50 yards away

    T1 - Sycamore: Fell tree to ground level

    Granted Trees 3 docs

  • 18 Cranmore Avenue, Isleworth, TW7 4QW

    PA/2024/3490 Submitted 19 Oct 2024 50 yards away

    Ground floor rear extension 6.00 metres deep, maximum height 2.90 metres, 2.90 metres high to the eaves

    Granted 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