86 Chatsworth Crescent, Hounslow, TW3 2PD

1. 12 Aug 2026

   Received by Hounslow

2. 23 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 7 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.

• 98 ELMER GARDENS, ISLEWORTH, TW7 6HA

  P/2023/0761 Submitted 9 Mar 2023 128m away

  Certificate of lawfulness for the erection of rear roof extension with hip to gable conversion and front roof windows to the house

  Granted Lawful development Extension Loft or dormer +1 7 docs

• 47 James Street, Hounslow, TW3 1SP

  PA/2026/1121 Submitted 10 Apr 2026 140m away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.60 metres, 2.94 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 35 CHATSWORTH CRESCENT, HOUNSLOW, TW3 2PE

  P/2023/0358 Submitted 3 Feb 2023 142m away

  Certificate of lawfulness for the erection of a rear roof extension with a hip to gable conversion with front and rear roof windows

  Granted Lawful development Extension Loft or dormer +1 8 docs

• 83 CHATSWORTH CRESCENT, HOUNSLOW, TW3 2PF

  PA/2023/0959 Submitted 27 Mar 2023 152m away

  Ground floor rear extension 6.00 metres deep, maximum height 3.28 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 6 docs

• 108 Elmer Gardens, Isleworth, TW7 6HA

  P/2026/2321 Submitted 11 Aug 2026 156m away

  100% historically approved · decision due ~6 Oct

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

  Awaiting decision Lawful development Extension 4 docs
  Small domestic

• 17 Dalmeny Crescent, Hounslow, TW3 2NT

  P/2026/0634 Submitted 24 Feb 2026 159m away

  Certificate of lawfulness for the proposed erection of a rear roof extension incorporating a Juliet balcony with hip to gable conversion and front roof windows to the house.

  Granted Lawful development Extension Loft or dormer +1 5 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