108 Elmer Gardens, Isleworth, TW7 6HA

1. 11 Aug 2026

   Received by Hounslow

2. 16 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 6 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 lawful development applications in a median of 55 days. More in our guide to how long planning decisions take.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 110 Elmer Gardens, Isleworth, TW7 6HA

  P/2025/1402 Submitted 2 May 2025 9m away

  Erection of first floor rear extension to the house.

  Withdrawn Householder Extension 43 docs
  Domestic

• 98 ELMER GARDENS, ISLEWORTH, TW7 6HA

  P/2023/0761 Submitted 9 Mar 2023 31m 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

• 85 Elmer Gardens, Isleworth, TW7 6EZ

  P/2024/2792 Submitted 16 Aug 2024 82m away

  Erection of a single storey rear extension and rear roof extension with three front roof windows to allow the change of use from single family house into a large House in Multiple Occupation.

  Refused Full applications Extension Windows or glazing 11 docs
  Small domestic

• 126 Chatsworth Crescent, Hounslow, TW3 2PD

  P/2026/1230 Submitted 22 Apr 2026 83m away

  Certificate of lawfulness for a proposed hip to gable conversion and erection of a rear roof extension with a Juliette balcony and two front roof windows and a single storey rear extension to the house

  Granted Lawful development Extension Loft or dormer +1 7 docs
  Small domestic

• 83 CHATSWORTH CRESCENT, HOUNSLOW, TW3 2PF

  PA/2023/0959 Submitted 27 Mar 2023 114m 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

• 15 Elmer Gardens, Isleworth, TW7 6EY

  PA/2026/0365 Submitted 5 Feb 2026 127m away

  Ground floor rear extension 3.50 metres, maximum height 4.00 metres, 3.00 metres high to the eaves.

  Granted Prior approval Extension 7 docs

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

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

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

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

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

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

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

  Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development