12 Letchworth Avenue, Feltham, TW14 9RY

1. 14 Sep 2026

   Received by Hounslow

2. 17 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 9 November 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.

• 14 Letchworth Avenue, Feltham, TW14 9RY

  PA/2026/2329 Submitted 12 Aug 2026 24m away

  91% historically approved · decision due ~7 Oct

  Ground floor rear extension 6.00 metres deep, maximum height of 2.98 metres, 2.90 metres high to the eaves

  Awaiting decision Prior approval Extension 4 docs

• 4 Letchworth Avenue, Feltham, TW14 9RY

  P/2024/3425 Submitted 12 Oct 2024 29m away

  Certificate of Lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows and a front porch extension.

  Granted Lawful development Extension Loft or dormer +1 6 docs
  Small domestic

• 4 Letchworth Avenue, Feltham, TW14 9RY

  PA/2024/3424 Submitted 14 Oct 2024 29m away

  Ground floor rear extension 6.00 metres deep, maximum height of 2.91 metres, 2.91 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 2 Letchworth Avenue, Feltham, TW14 9RY

  P/2026/0911 Submitted 19 Mar 2026 34m away

  Certificate of lawfulness for the proposed use of a room in the house for a private hire operator business

  Granted Lawful development 6 docs

• 2 Letchworth Avenue, Feltham, TW14 9RY

  P/2026/2459 Submitted 28 Aug 2026 34m away

  100% historically approved · decision due ~23 Oct

  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.

  Awaiting decision Lawful development Extension Loft or dormer +1 10 docs

• 2 Letchworth Avenue, Feltham, TW14 9RY

  PA/2026/2393 Submitted 18 Aug 2026 34m away

  91% historically approved · decision due ~13 Oct

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.85 metres high to the eaves

  Awaiting decision Prior approval Extension 9 docs

• P/2026/2623 Awaiting decision

  8 Lonsdale Road,Chiswick,W4 1ND

  Installation of external condenser at first floor level.

  15 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.

  21 Jul 2026 Householder
• P/2026/2615 Awaiting decision

  48 Meadow Waye, Hounslow, TW5 9EZ

  Erection of a part first floor rear extension.

  14 Sep 2026 Householder
• P/2026/2600 Awaiting decision

  310 Lionel Road North, Brentford, TW8 9QX

  Erection of a rear roof extension.

  14 Sep 2026 Householder
• P/2026/2575 Awaiting decision

  88 Chatsworth Crescent, Hounslow, TW3 2PD

  Erection of a first floor rear and side extension.

  10 Sep 2026 Householder