40 Dene Avenue, Hounslow, TW3 3AH

1. 9 Sep 2024

   Received by Hounslow

2. 21 Oct 2024

   Validated

   Checked as complete and ready for consideration.

3. 16 Dec 2024

   Decision issued: LAWFNOTGRANT

4. 26 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 16 December 2024, 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.

• 42 DENE AVENUE, HOUNSLOW, TW3 3AH

  P/2021/3305 Submitted 13 Aug 2021 50 yards away

  Erection of a hip to gable and rear roof extension with juilette balcony and two front roof windows, a single storey rear extension to the house

  Withdrawn Householder Extension Loft or dormer +1 6 docs
  Small domestic

• 98 Bulstrode Avenue, Hounslow, TW3 3AG

  PA/2026/2551 Submitted 8 Sep 2026 100 yards away

  78% historically approved · decision due ~3 Nov

  Ground floor rear extension 5.00 metres deep, maximum height 2.95 metres, 2.95 metres high to the eaves.

  Awaiting decision Prior approval Extension 5 docs

• 64 DENE AVENUE, HOUNSLOW, TW3 3AH

  P/2021/2444 Submitted 17 Jun 2021 100 yards away

  Certificate of Lawfulness for the erection of a single storey side extension to the house, erection of a single storey detached outbuilding at the rear of the garden and the erection of a single storey detached outbuilding midway along the rear garden.

  Refused Lawful development Extension 10 docs
  Small domestic

• 27 DENE AVENUE, HOUNSLOW, TW3 3AQ

  P/2023/0002 Submitted 3 Jan 2023 100 yards away

  Certificate of lawfulness for erection of 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

• 27 DENE AVENUE, HOUNSLOW, TW3 3AQ

  P/2023/0003 Submitted 3 Jan 2023 100 yards away

  Erection of first floor rear extension with associated roof alteration to the house

  Granted Householder Extension 9 docs
  Domestic

• 27 DENE AVENUE, HOUNSLOW, TW3 3AQ

  PA/2023/0355 Submitted 3 Feb 2023 100 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.63 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 7 docs

• P/2026/2813 Awaiting decision

  150 Wood Lane, Isleworth, TW7 5EQ

  (GSGS877009741) Certificate of lawfulness proposed for the erection of a single storey outbuilding to be used as a home gym / playroom / shed in the rear garden of the house

  Received 5 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2334 Granted

  69 Central Avenue, Hounslow, TW3 2QW

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

  Received 12 Aug, published by the council 16 Aug 2026 Lawful development
• P/2026/2459 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Certificate of Lawfulness for the proposed hip to gable roof conversion, installation of two front roof windows, and erection of a rear roof extension to the existing house.

  Received 28 Aug, published by the council 5 Sep 2026 Lawful development
• P/2026/2787 Awaiting decision

  13 Denbigh Road, Hounslow, TW3 4DU

  Certificate of Lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  Received 1 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2790 Awaiting decision

  14 Old Farm Close, Hounslow, TW4 7AB

  Certificate of lawfulness for the proposed erection of a rear roof extension and two front roof windows to the house.

  Received 1 Oct, published by the council 6 Oct 2026 Lawful development