4 Dawes Avenue, Isleworth, TW7 7JT

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

• 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
• PA/2025/3597 Granted

  4 Dawes Avenue, Isleworth, TW7 7JT

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

  Decided 6 Jan 2026 Prior approval

1. 17 Aug 2026

   Received by Hounslow

2. 23 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 12 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 55 days over the applications it decided in the last year.

• 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

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided amendment applications in a median of 28 days. More in our guide to how long planning decisions take.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• 4 Dawes Avenue, Isleworth, TW7 7JT

  PA/2025/3597 Submitted 2 Dec 2025 0m away

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

  Granted Prior approval Extension 6 docs

• 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

• P/2026/2288 Refused

  Euro House, 54-66 High Street, Hounslow, TW3 1NW

  Non material amendment install an internal wall in 12 of the consented flats of permission P/2024/1935 approved 27/09/2024 for prior approval application for the change of use from Class E to Class C3 on the first – third floor to create 31 residential self-contained flats with associated refuse and cycle storage

  5 Aug 2026 Amendments
• P/2026/2442 Awaiting decision

  27 Cranford Lane, Hounslow, TW5 9EP

  Non material amendment to change the materials of condition 6a of application P/2026/0686 approved 19/03/2026 for the details of condition 4 Materials and condition 6a Sustainable Materials submitted pursuant to planning permission P/2024/4105 dated 24/03/2025 for erection of four, two/three storey residential dwellings with associated private amenity space, parking, landscaping, cycle and refuse storage following demolition of the existing building

  26 Aug 2026 Amendments
• P/2026/2158 Granted

  Building 3 Chiswick Park, 566 Chiswick High Road, Chiswick, London, W4 5YA

  Non material amendment to allow relocation of four external condenser units approximately 2 to 3 metres northwards within the existing roof plant zone, updates to the internal routing of the VRF refrigerant tray and the sub-mains LV ladder of planning permission P/2025/2431 dated 11/11/2025 for installation of plant equipment with associated power cabling and replacement of existing plant equipment at roof level

  23 Jul 2026 Amendments
• P/2026/1750 Granted

  Thames Works, Church Street, Chiswick, London, W4 2PD

  Non material amendment to allow the re-wording of condition 2 (approved plans) to update the approved plan list and to amendment the description of development to External alterations to the existing building including amendments to existing openings and associated works to elevations of planning permission P/2025/3155

  12 Jun 2026 Amendments
• P/2026/2297 Refused

  Euro House, 54-66 High Street, Hounslow, TW3 1NW

  Non material amendments to allow the removal of Condition 5 (Eastern Vehicular Access) of permission P/2024/1935 approved 27/09/2024 for the Prior approval for the change of use from Class E to Class C3 on the first to third floor to create 31 residential self contained flats with associated refuse and cycle storage

  6 Aug 2026 Amendments