41 Northfield Road, Hounslow, TW5 9JQ

1. 18 Jun 2026

   Received by Hounslow

2. 30 Jul 2026

   Added to PlanIndex

3. 17 Aug 2026

   Validated

   Checked as complete and ready for consideration.

4. 2 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously Withdrawn.

5. Decision

   Awaiting decision

   Decision expected by 12 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.

• 17 NORTHFIELD ROAD, HOUNSLOW, TW5 9JQ

  P/2023/0723 Submitted 7 Mar 2023 89m away

  Erection of single storey rear extension and rear roof extension with front & rear roof windows to the house.

  Refused Householder Extension Windows or glazing 9 docs
  Small domestic

• 148 NORTHFIELD ROAD, HOUNSLOW, TW5 9JG

  PA/2021/2448 Submitted 17 Jun 2021 91m away

  Ground floor rear extension 5.50 metres deep, maximum height of 2.93 metres, 2.83 metres high to the eaves

  Refused Prior approval Extension 6 docs

• 13 Northfield Road, Hounslow, TW5 9JQ

  PA/2025/2505 Submitted 13 Aug 2025 111m away

  Ground floor rear extension 5.00 metres deep, maximum height of 3.19 metres, 2.70 metres high to the eaves

  Granted Prior approval Extension 14 docs

• 149 CRANFORD LANE, HOUNSLOW, TW5 9JA

  P/2019/3914 Submitted 29 Oct 2019 166m away

  Erection of a single storey side extension

  Granted Householder Extension 9 docs
  Small domestic

• 196 Cranford Lane, Hounslow, TW5 9JD

  P/2025/3207 Submitted 23 Oct 2025 189m away

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

  Granted Lawful development Extension Loft or dormer +1 8 docs

• Unit 1 And 43 Phoenix Way, Hounslow, TW5 9NB

  P/2026/1347 Submitted 5 May 2026 200m away

  Installation of one internally illuminated logo and one non-illuminated flat panel on the front elevation of the building and one non illuminated totem sign at the entrance

  Granted Advertising 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