2 Thornbury Avenue, Isleworth, TW7 4NQ

1. 22 Jun 2026

   Received by Hounslow

2. 26 Jul 2026

   Added to PlanIndex

3. 3 Aug 2026

   Decision issued: APPROVED

4. 3 Aug 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

Hounslow granted permission on 3 August 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.

• 131 Thornbury Road, Isleworth, TW7 4ND

  P/2026/1561 Submitted 26 May 2026 79m away

  Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  Granted Lawful development 7 docs

• 119 THORNBURY ROAD, ISLEWORTH, TW7 4ND

  P/2021/2277 Submitted 7 Jun 2021 83m away

  Erection of single storey rear extension following the demolition of the existing, enlargement of the existing rear roof extension and replacement of the front roof light

  Granted Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 21 Thornbury Avenue, Isleworth, TW7 4NF

  P/2025/2580 Submitted 21 Aug 2025 85m away

  Installation of render the front and side elevation and installation of external wall insulation and render to the rear elevation of the house.

  Granted Householder 7 docs
  Domestic

• 24 THORNBURY AVENUE, ISLEWORTH, TW7 4NQ

  P/2021/2046 Submitted 24 May 2021 90m away

  Variation of Condition 2 (approved plans) and Condition 3 (no additional windows and doors) to improve the appearance and utility of the extension of planning application 01118/24/P1 approved under appeal dated 30/11/2020 for erection of single storey rear extension and side and rear roof dormer extensions with one front roof window to the house and alteration to fenestration.

  Granted Householder Extension Loft or dormer +1 5 docs
  Small domestic

• 24 Thornbury Avenue, Isleworth, TW7 4NQ

  P/2025/3152 Submitted 20 Oct 2025 90m away

  Change of use from a residential house (C3) to a Large House in Multiple Occupation (Sui Generis).

  Refused Full applications 12 docs

• 23 Thornbury Avenue, Isleworth, TW7 4NF

  P/2025/3117 Submitted 15 Oct 2025 91m away

  Retrospective permission for the existing rear canopy.

  Granted Householder 7 docs
  Domestic

• P/2026/2623 Awaiting decision

  8 Lonsdale Road,Chiswick,W4 1ND

  Installation of external condenser at first floor level.

  Received 15 Sep, published by the council 17 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.

  Received 21 Jul, published by the council 30 Jul 2026 Householder
• P/2026/2615 Awaiting decision

  48 Meadow Waye, Hounslow, TW5 9EZ

  Erection of a part first floor rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2619 Awaiting decision

  12 Letchworth Avenue, Feltham, TW14 9RY

  Erection of a single storey rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2600 Awaiting decision

  310 Lionel Road North, Brentford, TW8 9QX

  Erection of a rear roof extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder