126 Chinchilla Drive, Hounslow, TW4 7NT

1. 3 Feb 2026

   Received by Hounslow

2. 16 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Mar 2026

   Decision issued: GRANT

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 25 March 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.

• 8 Raccoon Way, Hounslow, TW4 7PJ

  P/2025/2833 Submitted 22 Sep 2025 100 yards away

  Erection of single storey rear extension following demolition of existing conservatory.

  Granted Householder Extension Demolition 18 docs
  Small domestic

• 72 GREAT SOUTH-WEST ROAD, HOUNSLOW, TW4 7NF

  P/2023/0248 Submitted 25 Jan 2023 150 yards away

  Erection of a single storey side extension to the house

  Withdrawn Householder Extension 4 docs
  Small domestic

• 74 GREAT SOUTH-WEST ROAD, HOUNSLOW, TW4 7NF

  P/2021/2721 Submitted 5 Jul 2021 150 yards away

  Erection of a two storey side extension, roof extension and a single storey rear extension to the house

  Refused Householder Extension 7 docs
  Small domestic

• 31 LELA AVENUE, HOUNSLOW, TW4 7RU

  P/2021/1899 Submitted 13 May 2021 150 yards away

  Demolition of existing single storey side extension and erection of double storey side extension. Enlargement of existing front porch and erection of an outbuilding at rear of property.

  Refused Householder Extension Demolition 10 docs
  Small domestic

• 31 LELA AVENUE, HOUNSLOW, TW4 7RU

  PA/2021/1898 Submitted 13 May 2021 150 yards away

  Ground floor rear extension 4.00 metres deep, maximum height 2.80 metres, 2.50 metres high to the eaves

  Granted Prior approval Extension 9 docs

• 52 GREAT SOUTH-WEST ROAD, HOUNSLOW, TW4 7NF

  P/2021/2774 Submitted 7 Jul 2021 150 yards away

  Conversion of existing dwellinghouse into four flats with associated internal and external alterations. Replacement of single storey rear extension and roof, replacement of existing rear storage building and roof. Erection of two rear roof windows and one additional front roof window. Construction of rear amenity space, bicycle storage and refuse area. Demolition of existing rear outbuilding and formation of car parking.

  Refused Full applications New dwelling Extension +3 9 docs
  Several homes

• 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