43 Dawes Avenue, Isleworth, TW7 7JS

This site has had 5 applications since 2026: 3 approved, 1 refused.

• P/2026/2332 Granted

  43 Dawes Avenue, Isleworth, TW7 7JS

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

  Decided 10 Sep 2026 Lawful development
• P/2026/1983 Withdrawn

  43 Dawes Avenue, Isleworth, TW7 7JS

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

  Submitted 3 Jul 2026 Householder
• P/2026/1545 Granted

  43 Dawes Avenue, Isleworth, TW7 7JS

  Erection of a single storey rear extension.

  Decided 30 Jun 2026 Householder
• PA/2026/0348 Refused

  43 Dawes Avenue, Isleworth, TW7 7JS

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

  Decided 27 Feb 2026 Prior approval

1. 24 Feb 2026

   Received by Hounslow

2. 9 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 29 Apr 2026

   Decision issued: APPROVED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 29 April 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 43 Dawes Avenue, Isleworth, TW7 7JS

  P/2026/1983 Submitted 3 Jul 2026 50 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  Withdrawn Householder Extension Loft or dormer 7 docs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 50 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 50 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

• 43 Dawes Avenue, Isleworth, TW7 7JS

  P/2026/1545 Submitted 22 May 2026 50 yards away

  Erection of a single storey rear extension.

  Granted Householder Extension 10 docs
  Small domestic

• 41 DAWES AVENUE, ISLEWORTH, TW7 7JS

  P/2021/2533 Submitted 21 Jun 2021 50 yards away

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

  Granted Householder Extension 10 docs
  Small domestic

• 40 WOODSTOCK AVENUE, ISLEWORTH, TW7 7JE

  P/2023/0324 Submitted 1 Feb 2023 100 yards away

  Erection of a single storey rear extension with part first floor rear extension and rear roof extension to the house.

  Refused Householder Extension 22 docs
  Small domestic

• 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