144 Ash Grove, Hounslow, TW5 9DS

1. 7 May 2026

   Received by Hounslow

2. 5 Jun 2026

   Decision issued: GRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 5 June 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.

• 75 ASH GROVE, HOUNSLOW, TW5 9DU

  P/2023/0197 Submitted 20 Jan 2023 50 yards away

  Certificate of lawfulness for the erection of a detached rear outbuilding to the house

  Granted Lawful development 6 docs

• 158 Ash Grove, Hounslow, TW5 9DS

  P/2026/1145 Submitted 14 Apr 2026 50 yards away

  Non-Material Amendment to solar panel positioning and energy statement pursuant to permission P/2023/0440 dated 14/07/2023 for Erection of two pairs of semi-detached houses and a pair of semi-detached bungalows following demolition of the two storey side extension and outbuilding to 158 Ash Grove and demolition of garage to 156 Ash Grove, with associated amenity, car parking and cycle and bin stores.

  Granted Amendments Extension Demolition 4 docs

• 158 Ash Grove, Hounslow, TW5 9DS

  P/2024/3693 Submitted 6 Nov 2024 50 yards away

  Details of Condition 3 (Materials) submitted pursuant to planning permission 00048/154-158/P1 (P/2023/0440) dated 14/07/2023 for Erection of two pairs of semi-detached houses and a pair of semi-detached bungalows following demolition of the two storey side extension and outbuilding to 158 Ash Grove and demolition of garage to 156 Ash Grove, with associated amenity, car parking and cycle and bin stores.

  Granted Conditions Extension Demolition 5 docs

• 67 Ash Grove, Hounslow, TW5 9DU

  PA/2025/2906 Submitted 26 Sep 2025 50 yards away

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

  Granted Prior approval Extension 6 docs

• 154-158 Ash Grove Hounslow TW5 9DS

  P/2024/3202 Submitted 24 Sep 2024 50 yards away

  Details of condition 22 (Construction Logistics Plan) submitted pursuant planning permission 00048/154-158/P1 (P/2023/0440) dated 14/07/2023 for erection of two pairs of semi-detached houses and a pair of semi-detached bungalows following demolition of the two storey side extension and outbuilding to 158 Ash Grove and demolition of garage to 156 Ash Grove, with associated amenity, car parking and cycle and bin stores.

  Granted Conditions Extension Demolition 5 docs

• 158A Ash Grove, Hounslow, TW5 9DS

  P/2025/2521 Submitted 15 Aug 2025 50 yards away

  Erection of a rear roof extension and two front rooflights to the house.

  Granted Householder Extension Loft or dormer 9 docs
  Domestic

• 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