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• P/2026/1983 Withdrawn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
• P/2026/0649 Granted

  43 Dawes Avenue, Isleworth, TW7 7JS

  Erection of single storey rear extension to the house

  Decided 29 Apr 2026 Householder

1. 4 Feb 2026

   Received by Hounslow

2. 27 Feb 2026

   Decision issued: PRIOR APPROVAL DOES NOT COMPLY

3. 12 Aug 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. 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  Withdrawn Householder Extension Loft or dormer 7 docs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

  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

• 43 Dawes Avenue, Isleworth, TW7 7JS

  P/2026/0649 Submitted 24 Feb 2026 50 yards away

  Erection of single storey rear extension to the house

  Granted Householder Extension 15 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

• PA/2026/2437 Refused

  17 Orchard Road, Brentford, TW8 0QX

  Ground floor rear extension 5.51 metres deep, maximum height of 2.80 metres, 2.06 metres high to the eaves

  Received 26 Aug, published by the council 2 Sep 2026 Prior approval
• PA/2026/2481 Refused

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  Received 1 Sep, published by the council 5 Sep 2026 Prior approval
• PA/2026/2768 Awaiting decision

  86 Kneller Gardens, Isleworth, TW7 7NW

  Ground floor rear extension 4.50 metres, maximum height 3.20 metres, 2.70 metres high to the eaves.

  Received 30 Sep, published by the council 6 Oct 2026 Prior approval
• PA/2026/2393 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

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

  Received 18 Aug, published by the council 23 Aug 2026 Prior approval
• PA/2026/2364 Granted

  9 Westbourne Road, Feltham, TW13 4LX

  Ground floor rear extension 4.5 metres deep, maximum height of 2.8 metres, 2.8 metres high to the eaves

  Received 13 Aug, published by the council 23 Aug 2026 Prior approval