7 Hazledene Road, Chiswick, London, W4 3JB

This site has had 3 applications since 2026: 1 approved, 0 refused.

• P/2026/1775 Withdrawn

  7 Hazledene Road, Chiswick, London, W4 3JB

  Erection of a single-storey rear and side wrap-around extension.

  Submitted 15 Jun 2026 Householder
• P/2026/1774 Granted

  7 Hazledene Road, Chiswick, London, W4 3JB

  Certificate of Lawfulness for the proposed erection of a rear outrigger extension and the installation of a front roof window to the house.

  Decided 23 Jul 2026 Lawful development

1. 4 Aug 2026

   Received by Hounslow

2. 12 Aug 2026

   Added to PlanIndex

3. 2 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

4. 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 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.

• 7 Hazledene Road, Chiswick, London, W4 3JB

  P/2026/1775 Submitted 15 Jun 2026 0m away

  Erection of a single-storey rear and side wrap-around extension.

  Withdrawn Householder Extension 4 docs
  Small domestic

• 7 Hazledene Road, Chiswick, London, W4 3JB

  P/2026/1774 Submitted 15 Jun 2026 0m away

  Certificate of Lawfulness for the proposed erection of a rear outrigger extension and the installation of a front roof window to the house.

  Granted Lawful development Extension Windows or glazing 5 docs

• 24 Compton Crescent, Chiswick, London, W4 3JA

  P/2025/3439 Submitted 17 Nov 2025 58m away

  Erection of a side infill extension with a glass roof.

  Granted Householder Extension 10 docs
  Domestic

• 20 Compton Crescent, Chiswick, London, W4 3JA

  P/2025/3738 Submitted 17 Dec 2025 58m away

  Erection of a single storey rear infill extension to the house

  Granted Householder Extension 14 docs
  Small domestic

• 20 Compton Crescent, Chiswick, London, W4 3JA

  P/2025/3736 Submitted 17 Dec 2025 58m away

  Certificate of lawfulness for the proposed erection of a rear outrigger roof extension to the house

  Granted Lawful development Extension 9 docs

• 12 Compton Crescent, Chiswick, London, W4 3JA

  P/2026/0703 Submitted 2 Mar 2026 64m away

  Certificate of lawfulness proposed for the erection of a rear roof and outrigger extension with two front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 7 docs

• 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