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Planning application

24 THORNBURY AVENUE, ISLEWORTH, TW7 4NQ

Granted Hounslow P/2021/2046 Householder Applications

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

Variation of Condition 2 (approved plans) and Condition 3 (no additional windows and doors) to improve the appearance and utility of the extension of planning application 01118/24/P1 approved under appeal dated 30/11/2020 for erection of single storey rear extension and side and rear roof dormer extensions with one front roof window to the house and alteration to fenestration.

As published by the council, reference P/2021/2046

Application record

Reference
P/2021/2046
Type
Householder Applications
Status
Granted As published: Decided: APPROVED
Decision
Granted As published: APPROVED
Received
24 May 2021
Validated
24 May 2021
Decided
19 Jul 2021
Ward
Osterley and Spring Grove (Pre May 2022)
Decision by
Delegated
Postcode
TW7 4NQ

Site history

Applications at this address on the Hounslow register

This site has had 2 applications since 2021: 1 approved, 1 refused.

  • P/2025/3152 Refused

    24 Thornbury Avenue, Isleworth, TW7 4NQ

    Change of use from a residential house (C3) to a Large House in Multiple Occupation (Sui Generis).

    Decided 17 Apr 2026 Full applications

Timeline

Dates from the published record

  1. 24 May 2021

    Received by Hounslow

  2. 19 Jul 2021

    Decision issued: APPROVED

  3. 26 Jul 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.

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Open the documents

What this grant of permission means

Hounslow granted permission on 19 July 2021, 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 householder applications

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • 24 Thornbury Avenue, Isleworth, TW7 4NQ

    P/2025/3152 Submitted 20 Oct 2025 0m away

    Change of use from a residential house (C3) to a Large House in Multiple Occupation (Sui Generis).

    Refused Full applications 12 docs

  • 28 Thornbury Avenue, Isleworth, TW7 4NQ

    P/2024/1877 Submitted 6 Jun 2024 16m away

    Erection of a single storey rear infill replacing the existing conservatory, part single storey rear extension, side and rear roof extension and detached outbuilding at the rear of the garden

    Granted Full applications Extension 26 docs
    Small domestic

  • 30 Thornbury Avenue, Isleworth, TW7 4NQ

    P/2026/1623 Submitted 1 Jun 2026 26m away

    Works to tree in a Conservation Area. T1. Apple. Fell to ground level and grind out stump. Rear garden (east boundary)

    Granted Trees 4 docs

  • 23 Thornbury Avenue, Isleworth, TW7 4NF

    P/2025/3117 Submitted 15 Oct 2025 38m away

    Retrospective permission for the existing rear canopy.

    Granted Householder 7 docs
    Domestic

  • 21 Thornbury Avenue, Isleworth, TW7 4NF

    P/2025/2580 Submitted 21 Aug 2025 41m away

    Installation of render the front and side elevation and installation of external wall insulation and render to the rear elevation of the house.

    Granted Householder 7 docs
    Domestic

  • 31 THORNBURY AVENUE, ISLEWORTH, TW7 4NF

    P/2023/0164 Submitted 17 Jan 2023 44m away

    Retrospective application for the erection of a single storey side and part rear extension, roof extension with rear and side dormers and roof windows; changes to front boundary wall, rendering of external walls and replacement windows and doors.

    Refused Householder Extension Loft or dormer +1 9 docs
    Small domestic

In Hounslow

  • P/2026/2623 Awaiting decision

    8 Lonsdale Road,Chiswick,W4 1ND

    Installation of external condenser at first floor level.

    Received 15 Sep, published by the council 17 Sep 2026 Householder
  • P/2026/2125 Granted

    36 Midsummer Avenue, Hounslow, TW4 5BB

    Erection of a single storey rear extension and a single storey side extension following the demolition of the existing side garage.

    Received 21 Jul, published by the council 30 Jul 2026 Householder
  • P/2026/2615 Awaiting decision

    48 Meadow Waye, Hounslow, TW5 9EZ

    Erection of a part first floor rear extension.

    Received 14 Sep, published by the council 17 Sep 2026 Householder
  • P/2026/2619 Awaiting decision

    12 Letchworth Avenue, Feltham, TW14 9RY

    Erection of a single storey rear extension.

    Received 14 Sep, published by the council 17 Sep 2026 Householder
  • P/2026/2600 Awaiting decision

    310 Lionel Road North, Brentford, TW8 9QX

    Erection of a rear roof extension.

    Received 14 Sep, published by the council 17 Sep 2026 Householder