657 Great West Road, Isleworth, TW7 4PT

1. 30 Apr 2026

   Received by Hounslow

2. 14 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 9 July 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 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided householder applications in a median of 63 days. More in our guide to how long planning decisions take.

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.

• 131 Thornbury Road, Isleworth, TW7 4ND

  P/2026/1561 Submitted 26 May 2026 53m away

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

  Granted Lawful development 7 docs

• 2 CAROLINE CLOSE, ISLEWORTH, TW7 4QA

  P/2021/2986 Submitted 22 Jul 2021 81m away

  Works to two trees in TPO no. 141: T1 Ash Tree (Inonotus hispidus):- Fell to ground level; T2 Poplar:- Fell to ground level

  Granted Trees 4 docs

• 2 Caroline Close, Isleworth, TW7 4QA

  P/2026/2395 Submitted 18 Aug 2026 81m away

  98% historically approved · decision due ~16 Oct

  Works to trees in a TPO area; T1 TPO 141 Lime Tree to re pollard and T2 TPO 141 Lime, to re pollard.

  Awaiting decision Trees 4 docs

• 119 THORNBURY ROAD, ISLEWORTH, TW7 4ND

  P/2021/2277 Submitted 7 Jun 2021 99m away

  Erection of single storey rear extension following the demolition of the existing, enlargement of the existing rear roof extension and replacement of the front roof light

  Granted Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 115 THORNBURY ROAD, ISLEWORTH, TW7 4ND

  P/2021/3049 Submitted 21 Jul 2021 109m away

  T1: Cedar, Create 3 metres separation distance from both properties. And thin canopy by removing deadwood and crossing branches. max 10-15 %.

  Granted Trees 4 docs

• 113 Thornbury Road, Isleworth, TW7 4ND

  P/2025/3448 Submitted 17 Nov 2025 120m away

  Works to tree within a conservation area. Rear Garden. Bay (Laurus nobilis). Reduce height by approximately 0.5 metres to tidy and shape. Clean up any poor pruning stubs. Final height 3.5 metres and final spread unchanged at 2 metres.

  Granted Trees 4 docs

• 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