17 Cavalry Crescent, Hounslow, TW4 6EY

1. 18 May 2026

   Received by Hounslow

2. 25 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 20 Jul 2026

   Decision issued: GRANT

4. 26 Jul 2026

   Added to PlanIndex

Hounslow granted permission on 20 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.

• 46 Beavers Crescent, Hounslow, TW4 6EX

  P/2026/0012 Submitted 5 Jan 2026 50 yards away

  Certificate of lawfulness for the proposed erection of a single storey detached outbuilding in the rear garden.

  Granted Lawful development 7 docs
  Small domestic

• 46 Beavers Crescent, Hounslow, TW4 6EX

  P/2025/3012 Submitted 7 Oct 2025 50 yards away

  Erection of a single storey side and rear wrap around extension and a front porch to the house.

  Granted Householder Extension 7 docs
  Small domestic

• 54 Beavers Crescent, Hounslow, TW4 6EX

  PA/2025/3511 Submitted 21 Nov 2025 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 2.95 metres, 2.80 metres high to the eaves

  Granted Prior approval Extension 6 docs

• 65 Beavers Crescent, Hounslow, TW4 6EU

  P/2024/3492 Submitted 20 Oct 2024 100 yards away

  Erection of a First Floor Side Extension and Single Storey Rear Extension

  Granted Householder Extension 7 docs
  Small domestic

• 63 Beavers Crescent, Hounslow, TW4 6EU

  P/2026/2549 Submitted 8 Sep 2026 100 yards away

  100% historically approved · decision due ~3 Nov

  Certificate of lawfulness for the proposed erection of a single storey side extension.

  Awaiting decision Lawful development Extension 5 docs
  Small domestic

• 63 Beavers Crescent, Hounslow, TW4 6EU

  PA/2026/2550 Submitted 8 Sep 2026 100 yards away

  91% historically approved · decision due ~3 Nov

  Ground floor rear extension 5.00 metres deep, maximum height 3.51 metres, 3.00 metres high to the eaves.

  Awaiting decision Prior approval Extension 2 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