30 Northcote Avenue, Isleworth, TW7 7JQ

This site has had 2 applications since 2026.

• P/2026/0771 Withdrawn

  30 Northcote Avenue, Isleworth, TW7 7JQ

  Certificate of lawfulness for the proposed erection of a single storey outbuilding to the rear of the house.

  Submitted 6 Mar 2026 Lawful development

1. 6 Aug 2026

   Received by Hounslow

2. 7 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 12 Aug 2026

   Added to PlanIndex

4. 23 Aug 2026

   Status changed to REGISTERED: Under Consultation

   Previously REGISTERED: Valid.

5. Decision

   Awaiting decision

   Decision expected by 2 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 55 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 62 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.

• 30 Northcote Avenue, Isleworth, TW7 7JQ

  P/2026/0771 Submitted 6 Mar 2026 0m away

  Certificate of lawfulness for the proposed erection of a single storey outbuilding to the rear of the house.

  Withdrawn Lawful development 3 docs
  Small domestic

• 42 Crane Avenue, Isleworth, TW7 7JW

  P/2026/1350 Submitted 5 May 2026 22m away

  Certificate of lawfulness for the proposed erection of a single storey rear extension to the house.

  Granted Lawful development Extension 6 docs
  Small domestic

• 59 Crane Avenue, Isleworth, TW7 7JR

  P/2026/2046 Submitted 10 Jul 2026 67m away

  Non material amendment to remove the unimplemented rear roof extension with front roof window and the window on the front elevation of planning permission P/2021/2921 (00313/59/P1) approved 10/11/2021 for the erection of a single storey rear extension and a rear roof extension with one front roof window and insertion of a window on the front elevation

  Granted Amendments Extension Windows or glazing 5 docs
  Small domestic

• 40 WOODSTOCK AVENUE, ISLEWORTH, TW7 7JE

  P/2023/0324 Submitted 1 Feb 2023 96m 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

• 31 Northcote Road Twickenham Richmond Upon Thames TW1 1PB

  06/1141/PS192 Submitted 11 Apr 2006 152m away

  Proposed Loft Conversion With Rear Dormer.

  Granted Prior approval Loft or dormer 6 docs

• 145, Haliburton Road, Twickenham, TW1 1PE

  PA26/0983 Submitted 20 Mar 2026 159m away

  Erection of rear extension to create a sun room.

  Granted Householder Extension 21 docs
  Domestic

• P/2026/2047 Granted

  9 Borough Road, Isleworth, TW7 5DY

  Erection of a single storey rear extension.

  10 Jul 2026 Householder
• P/2026/1858 Granted

  8 CONNAUGHT AVENUE, HOUNSLOW, TW4 5BW

  Erection of single storey front extension to the outbuilding for used as storage, office and a Gym. Following part demolition of the outbuilding.

  23 Jun 2026 Householder
• P/2026/2503 Awaiting decision

  25 Arnold Crescent, Isleworth, TW7 7NS

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

  3 Sep 2026 Householder
• P/2026/1522 Granted

  4 Camborne Way, Hounslow, TW5 0PW

  Erection of a single storey rear extension and reduction in width of the existing side and rear extension.

  20 May 2026 Householder
• P/2026/2024 Granted

  20 Hartland Road, Isleworth, TW7 6RH

  Erection of a rear roof extension with windows to the front of the house.

  8 Jul 2026 Householder