28 Dawes Avenue, Isleworth, TW7 7JT

1. 4 Aug 2026

   Received by Hounslow

2. 12 Aug 2026

   Added to PlanIndex

3. 10 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

4. 9 Oct 2026

   Status changed to REGISTERED: Pending recommendation

   Previously REGISTERED: Under Assessment.

5. Decision

   Awaiting decision

   Decision expected by 29 September 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.

• 126 Worple Road, Isleworth, TW7 7HX

  P/2026/0202 Submitted 21 Jan 2026 100 yards away

  Erection of a single storey side extension to the house

  Refused Householder Extension 7 docs
  Small domestic

• 126 Worple Road, Isleworth, TW7 7HX

  P/2026/0563 Submitted 17 Feb 2026 100 yards away

  Erection of two storey side extension to the house.

  Refused Householder Extension 7 docs
  Domestic

• 41 DAWES AVENUE, ISLEWORTH, TW7 7JS

  P/2021/2533 Submitted 21 Jun 2021 100 yards away

  Erection of a single storey rear extension and a front porch.

  Granted Householder Extension 10 docs
  Small domestic

• 43 Dawes Avenue, Isleworth, TW7 7JS

  P/2026/1983 Submitted 3 Jul 2026 100 yards away

  GS853573342 - Erection of a hip to gable and rear roof extension with minor ridge increase to the house

  Withdrawn Householder Extension Loft or dormer 7 docs
  Domestic

• 43 Dawes Avenue, Isleworth, TW7 7JS

  PA/2026/0348 Submitted 4 Feb 2026 100 yards away

  Ground floor rear extension 4.80 metres deep, maximum height of 2.80 metres, 2.67 metres high to the eaves

  Refused Prior approval Extension 8 docs

• 43 Dawes Avenue, Isleworth, TW7 7JS

  P/2026/2332 Submitted 12 Aug 2026 100 yards away

  Certificate of Lawfulness for the proposed hip to gable conversion, front roof lights and erection of a rear roof extension to the house.

  Granted Lawful development Extension Loft or dormer 6 docs

• P/2026/2304 Granted

  18 Clifden Road, Brentford, TW8 0PF

  Erection of a side and rear extensions.

  Received 7 Aug, published by the council 12 Aug 2026 Householder
• P/2026/2804 Awaiting decision

  128 Durham Road, Feltham, TW14 0AE

  Erection of a detached outbuilding in the rear garden following demolition of existing shed.

  Received 2 Oct, published by the council 9 Oct 2026 Householder
• P/2026/2301 Granted

  4 Glebe Street, Chiswick, W4 2BG

  Erection of a front side and rear side infill extensions with alterations to the rear elevation, a rear side first floor infill extension with replacement of windows to the rear elevation and installation of new rooflights to the existing ground floor infill extension of the house

  Received 7 Aug, published by the council 16 Aug 2026 Householder
• P/2026/1167 Granted

  20 Firs Drive, Hounslow, TW5 9TD

  Erection of part one, part two-storey side extension following demolition of existing garage and part one, part two-storey rear extension. Raising of roof ridge, erection of rear roof extensions, and installation of one front roof window.

  Received 15 Apr, published by the council 26 Jul 2026 Householder
• P/2026/2025 Granted

  1 Kneller Gardens, Isleworth, TW7 7NP

  Erection of a single storey rear and first floor side extension incorporating the conversion of the existing garage to a habitable room

  Received 8 Jul, published by the council 26 Jul 2026 Householder