28 Rosemary Avenue, Hounslow, TW4 7JF

1. 7 May 2026

   Received by Hounslow

2. 12 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 6 Jul 2026

   Decision issued: GRANT

4. 26 Jul 2026

   Added to PlanIndex

Hounslow granted permission on 6 July 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.

• 36 Rosemary Avenue, Hounslow, TW4 7JF

  P/2024/3694 Submitted 6 Nov 2024 50 yards away

  Certificate of lawfulness for the erection of a single storey outbuilding in the rear garden following the demolition of the exiting rear covered area and garage

  Granted Lawful development Demolition 4 docs
  Small domestic

• 21A Rosemary Avenue, Hounslow, TW4 7JQ

  P/2025/2802 Submitted 18 Sep 2025 100 yards away

  Erection of a first floor side extension with hipped roof to the flat with alterations including relocation of the front door

  Granted Full applications Extension 7 docs

• 290B Bath Road, Hounslow, TW4 7DN

  P/2025/3458 Submitted 17 Nov 2025 150 yards away

  Certificate of lawfulness existing for the erection of a first floor rear extension to create one self-contained flat

  Granted Lawful development Extension 7 docs

• 290A Bath Road, Hounslow, TW4 7DN

  P/2025/3457 Submitted 17 Nov 2025 150 yards away

  Certificate of lawfulness existing for the conversion of the first floor into a self-contained flat

  Granted Lawful development 9 docs

• 294 Bath Road, Hounslow, TW4 7DN

  P/2026/1910 Submitted 26 Jun 2026 150 yards away

  Installation of a non-illuminated advertisement signboard on a hoarding to the front of the premises.

  Granted Advertising 6 docs

• 290 bath road,hounslow,TW4 7DN

  P/2026/1594 Submitted 28 May 2026 150 yards away

  Erection of a freestanding internally illuminated digital advertising sign and removal of existing freestanding advertising sign.

  Granted Advertising 8 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