339 Wellington Road South, Hounslow, TW4 5HS

1. 18 Jun 2026

   Received by Hounslow

2. 13 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. 7 Sep 2026

   Decision issued: GRANT

Hounslow granted permission on 7 September 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

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.

• 345 Wellington Road South, Hounslow, TW4 5HS

  P/2024/3738 Submitted 11 Nov 2024 27m away

  Erection of a single storey rear extension to the house

  Granted Householder Extension 8 docs
  Small domestic

• FLAT C 262 WELLINGTON ROAD SOUTH, HOUNSLOW, TW4 5JP

  P/2021/2041 Submitted 24 May 2021 42m away

  Erection of a single storey rear extension to ground floor rear flat.

  Granted Full applications Extension 5 docs
  Small domestic

• FLAT G 262 WELLINGTON ROAD SOUTH, HOUNSLOW, TW4 5JP

  P/2021/1571 Submitted 22 Apr 2021 42m away

  Erection of a rear roof extension with three front roof windows.

  Granted Full applications Extension Windows or glazing 5 docs

• 311 Wellington Road South, Hounslow, TW4 5HL

  P/2025/2597 Submitted 26 Aug 2025 89m away

  Formation of a dropped kerb at front of property

  Refused Householder 5 docs
  Small domestic

• 6 Roseville Avenue, Hounslow, TW3 3TD

  P/2026/2221 Submitted 30 Jul 2026 107m away

  77% historically approved · decision due ~13 Oct

  Erection of a single storey rear extension.

  Awaiting decision Householder Extension 16 docs
  Small domestic

• 365 WELLINGTON ROAD SOUTH, HOUNSLOW, TW4 5HU

  P/2019/3867 Submitted 24 Oct 2019 125m away

  Erection of new front boundary gates and alterations to front boundary wall

  Refused Householder 9 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.

  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