3 Clements Place, Brentford, TW8 9PS

1. 21 Jul 2026

   Received by Hounslow

2. 1 Sep 2026

   Validated

   Checked as complete and ready for consideration.

3. 10 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 27 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 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.

• 1 Clements Place, Brentford, TW8 9PS

  P/2026/0677 Submitted 26 Feb 2026 10m away

  Erection of single storey rear extension and a detached outbuilding for use as a gym and storage in the rear garden.

  Granted Householder Extension 17 docs
  Small domestic

• 20 Challis Road, Brentford, TW8 9PR

  PA/2025/2694 Submitted 5 Sep 2025 52m away

  Ground floor rear extension 5.00 metres deep, maximum height 3.47 metres, 3.47 metres high to the eaves.

  Granted Prior approval Extension 4 docs

• 20 Challis Road, Brentford, TW8 9PR

  P/2025/2693 Submitted 5 Sep 2025 52m away

  Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house, rear juliet balcony and removal of a rear chimney.

  Granted Lawful development Extension Windows or glazing 4 docs

• 16 CHALLIS ROAD, BRENTFORD, TW8 9PR

  PA/2021/2706 Submitted 2 Jul 2021 67m away

  Ground floor rear extension 5 metres deep, maximum height of 3 metres, 2.70 metres high to the eaves

  Granted Prior approval Extension 4 docs

• York House, York Parade Great West Road, Brentford, TW8 9AA

  P/2025/2282 Submitted 25 Jul 2025 69m away

  EXTERNAL ALTERATIONS AND EXTENSIONS TO FLAT BLOCK COMPRISING NEW WINDOWS TO THE FRONT AND REAR ELEVATIONS AT 4TH AND 5TH FLOOR LEVELS AND REAR EXTENSIONS FOR KITCHEN AND BEDROOM ACCOMMODATION TO FLAT 9 AT 4TH AND 5TH FLOOR LEVELS.

  Withdrawn Full applications Extension Windows or glazing 13 docs

• Flat 9 York House, York Parade, Great West Road, Brentford, TW8 9AA

  P/2025/2170 Submitted 11 Jul 2025 69m away

  Erection of a part two, part single storey fourth and fifth floor rear extension, provision of an internal fourth floor mezzanine and installation of replacement third, fourth and fifth floor front windows and ground and third floor rear doors.

  Withdrawn Full applications Extension Windows or glazing 11 docs
  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