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

1. 10 Sep 2026

   Received by Hounslow

2. 17 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 5 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.

• 50A Paxton Road, Chiswick, London, W4 2QX

  P/2026/1076 Submitted 2 Apr 2026 0m away

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

  Granted Lawful development 5 docs

• 52 PAXTON ROAD, CHISWICK, LONDON, W4 2QX

  P/2019/3813 Submitted 22 Oct 2019 4m away

  Erection of a single storey rear infill extension and creation of new mansard roof with front and rear roof extensions

  Granted Householder Extension Loft or dormer 8 docs
  Small domestic

• 18 Palladian Gardens, Chiswick, London, W4 2ER

  P/2026/1661 Submitted 4 Jun 2026 63m away

  Works to tree within a conservation area. T1 Holm Oak. Reduce height by approximately 4 metres. Reduce sides to a tight and tidy shape. Prune tree so that branches remain within the flower bed perimeter.

  Granted Trees 4 docs

• 2 Short Road, Chiswick, London, W4 2QU

  P/2024/1457 Submitted 6 May 2024 81m away

  Erection of a rear roof extension with Juliet balcony and two front roof windows with raising of ridge height

  Granted Householder Extension Roofing +1 12 docs
  Domestic

• 14 PAXTON ROAD, CHISWICK, LONDON, W4 2QX

  P/2021/2697 Submitted 1 Jul 2021 88m away

  Certificate of Lawfulness for the proposed erection of a single storey rear infill extension to the house

  Refused Lawful development Extension 6 docs
  Small domestic

• 8 -10 Short Road, Chiswick, London, W4 2QU

  P/2024/3376 Submitted 8 Oct 2024 93m away

  Erection of a mansard roof extension with two front roof windows and a rear roof extension with juliet balony to both properties

  Granted Full applications Extension Loft or dormer +1 12 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.

  20 Jul 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
• P/2026/2564 Awaiting decision

  2 Church Walk, Brentford, TW8 8DB

  Certificate of lawfulness for the proposed erection of a single storey rear extension and rear roof extension with three roof windows to the front.

  9 Sep 2026 Lawful development