11 Inverness Road, Hounslow, TW3 3LS

1. 26 Aug 2026

   Received by Hounslow

2. 7 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 17 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 2 November 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 56 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.

• 10 INVERNESS ROAD, HOUNSLOW, TW3 3LS

  P/2021/1956 Submitted 18 May 2021 23m away

  Erection of a single storey rear and infill extension to the house

  Granted Householder Extension 9 docs
  Small domestic

• 10 INVERNESS ROAD, HOUNSLOW, TW3 3LS

  P/2021/1940 Submitted 17 May 2021 23m away

  Certificate of Lawfulness 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

• 249 Staines Road, Hounslow, TW3 3JJ

  P/2026/1036 Submitted 30 Mar 2026 133m away

  Certificate of lawfulness for the existing use of detached outbuilding as accommodation ancillary to the main dwelling.

  Granted Lawful development 14 docs
  Small domestic

• 209 Hounslow Trade Park, Unit 3,Staines Road,Hounslow,TW3 3FW

  P/2024/3452 Submitted 15 Oct 2024 146m away

  Installation of externally illuminated fascia sign to the front and rear of the building.

  Granted Advertising 9 docs

• 69 Cromwell Road, Hounslow, TW3 3QG

  P/2026/2488 Submitted 1 Sep 2026 177m away

  100% historically approved · decision due ~27 Oct

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion.

  Awaiting decision Lawful development Extension Loft or dormer 7 docs

• 142A Wellington Road South, Hounslow, TW4 5JH

  P/2026/2218 Submitted 29 Jul 2026 205m away

  90% historically approved · decision due ~23 Sep

  Details of boundary screening and West London Cycle Parking Guidance submitted pursuant to conditions 5 and 13 of permission P/2023/0738 dated 29/07/26 for erection of part two storey, part single storey rear extension to 146 and single storey rear extensions to 142 and 144 together with six car parking spaces, cycle store and landscaping of whole site142-146 WELLINGTON ROAD SOUTH, HOUNSLOW , TW4 5JH.

  Awaiting decision Conditions Extension 1 doc
  Small domestic

• P/2026/2118 Granted

  54 Amhurst Gardens, Isleworth, TW7 6AJ

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows.

  20 Jul 2026 Lawful development
• P/2026/2580 Awaiting decision

  50B Paxton Road, Chiswick, London, W4 2QX

  Certificate of lawfulness for the existing use of a first floor self contained flat.

  10 Sep 2026 Lawful development
• P/2026/2332 Granted

  43 Dawes Avenue, Isleworth, TW7 7JS

  Certificate of Lawfulness for the proposed hip to gable conversion, front roof lights and erection of a rear roof extension to the house.

  12 Aug 2026 Lawful development
• P/2026/2089 Granted

  18 Central Avenue, Hounslow, TW3 2QH

  Certificate of lawfulness for the existing use of the rear extension as a self contained flat.

  17 Jul 2026 Lawful development
• P/2026/2566 Awaiting decision

  109 Wood Lane, Isleworth, TW7 5EG

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

  9 Sep 2026 Lawful development