19 Cedars Road, Chiswick, London, W4 3JP

1. 18 May 2026

   Received by Hounslow

2. 12 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 7 August 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.

• 19 Cedars Road, Chiswick, W4 3JP

  P/2024/2649 Submitted 1 Aug 2024 0m away

  Change of use from a single family house (Class C3) to a House in Multiple Occupation (Class C4) for occupation by up to six persons.

  Refused Full applications 8 docs

• 18 Elmwood Road, Chiswick, London, W4 3DZ

  P/2024/3601 Submitted 30 Oct 2024 38m away

  Erection of a single storey rear extension following the demolition of the existing single storey rear infill conservatory and single storey rear extension.

  Granted Full applications Extension Demolition 23 docs
  Small domestic

• Flat 1, 5 Cedars Road, Chiswick, London, W4 3JP

  P/2026/0988 Submitted 25 Mar 2026 55m away

  Erection of a part single storey rear extension to the flat

  Granted Full applications Extension 16 docs
  Small domestic

• 15 Elmwood Road, Chiswick, London, W4 3DY

  P/2026/0207 Submitted 22 Jan 2026 71m away

  Erection of a single storey rear extension with flat roof, rear decking, access steps and balustrade to the house.

  Granted Householder Extension 6 docs
  Small domestic

• LAND ADJACENT TO 946 GREAT WEST ROAD, BRENTFORD, TW8 9HF

  P/2021/3164 Submitted 3 Aug 2021 76m away

  Installation of an internally illuminated free standing digital advertisement hoarding, measuring approximately 6m x 3m following the removal of the existing advertisement hoarding.

  Refused Advertising 7 docs

• 42 Elmwood Road, Chiswick, London, W4 3DZ

  P/2026/2327 Submitted 12 Aug 2026 81m away

  100% historically approved · decision due ~7 Oct

  Certificate of lawfulness for the proposed erection of a rear roof extension with alterations to form a gable end and four windows to the front roof of the house.

  Awaiting decision Lawful development Extension Windows or glazing 5 docs

• 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.

  Received 20 Jul, published by the council 26 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.

  Received 10 Sep, published by the council 17 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.

  Received 12 Aug, published by the council 16 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.

  Received 17 Jul, published by the council 26 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.

  Received 9 Sep, published by the council 17 Sep 2026 Lawful development