210 Whitton Dene, Isleworth, TW7 7LU

1. 22 Jul 2026

   Received by Hounslow

2. 3 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 29 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 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.

• 212 WHITTON DENE, ISLEWORTH, TW7 7LU

  P/2021/2457 Submitted 17 Jun 2021 11m away

  Erection of a first floor side extension and a single storey rear extension.

  Granted Householder Extension 4 docs
  Small domestic

• 393 Whitton Dene, Isleworth, TW7 7NF

  P/2026/0943 Submitted 22 Mar 2026 51m away

  Erection of a detached garage in the rear garden.

  Refused Householder 7 docs
  Domestic

• 25 Arnold Crescent, Isleworth, TW7 7NS

  P/2026/2503 Submitted 3 Sep 2026 52m away

  77% historically approved · decision due ~29 Oct

  Erection of a single storey rear, two storey side extension, and rear roof extension with two front roof windows to the house.

  Awaiting decision Householder Extension Windows or glazing 11 docs
  Small domestic

• 23 ARNOLD CRESCENT, ISLEWORTH, TW7 7NS

  P/2023/0064 Submitted 3 Jan 2023 52m away

  Erection of a part single, part two storey rear extension and two storey side extension following the demolition of the existing garage

  Granted Householder Extension Demolition 16 docs
  Domestic

• 27 Arnold Crescent, Isleworth, TW7 7NS

  P/2024/3295 Submitted 2 Oct 2024 53m away

  Proposal for the erection of a hip to gable conversion, rear dormer and three roof windows

  Refused Householder Loft or dormer Windows or glazing 9 docs
  Domestic

• 389 Whitton Dene,Isleworth,Hounslow,TW7 7NF

  P/2026/0389 Submitted 9 Feb 2026 59m away

  Formation of a vehicular access to the public pathway.

  Granted Full applications 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/2026/2619 Awaiting decision

  12 Letchworth Avenue, Feltham, TW14 9RY

  Erection of a single storey 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