271 Jersey Road, Isleworth, TW7 4RF

1. 5 Aug 2026

   Received by Hounslow

2. 12 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 30 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 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.

• 269 Jersey Road, Isleworth, TW7 4RF

  P/2026/2284 Submitted 5 Aug 2026 10m away

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

  Granted Lawful development 4 docs
  Small domestic

• 269 -271 Jersey Road, Isleworth, TW7 4RF

  P/2025/2647 Submitted 1 Sep 2025 10m away

  Erection of two, two storey houses following the demolition of existing pair of semi-detached bungalows.

  Granted Full applications Demolition 16 docs

• 277 JERSEY ROAD, ISLEWORTH, TW7 4RF

  P/2023/0622 Submitted 27 Feb 2023 28m away

  Erection of a rear roof extension with hip to gable conversion and two front roof windows to the house

  Refused Householder Extension Loft or dormer +1 11 docs
  Domestic

• 277 JERSEY ROAD, ISLEWORTH, TW7 4RF

  P/2023/0397 Submitted 7 Feb 2023 28m away

  Installation of two roof lights to the existing extension, creation of new door opening on side elevation and change of rear glazing to bi-fold doors

  Granted Householder Extension Loft or dormer +1 10 docs
  Domestic

• 251A Jersey Road, Isleworth, TW7 4RF

  P/2025/3666 Submitted 9 Dec 2025 39m away

  Works to three Gleditsia trees under Tree Preservation Order number 570 - 2 metre crown reduction and crown lifting by up to 1 metre.

  Granted Trees 4 docs

• 263 Jersey Road, Isleworth, TW7 4RF

  P/2026/0010 Submitted 5 Jan 2026 39m away

  Erection of a part first floor rear extension to the house.

  Granted Householder Extension 12 docs
  Domestic

• 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