33 Chestnut Grove, Isleworth, TW7 7HA

1. 30 Mar 2026

   Received by Hounslow

2. 30 Apr 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 30 April 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.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 18 CHESTNUT GROVE, ISLEWORTH, TW7 7EZ

  PA/2023/0325 Submitted 1 Feb 2023 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves

  Refused Prior approval Extension 5 docs

• 20 Chestnut Grove, Isleworth, TW7 7EZ

  P/2026/0319 Submitted 3 Feb 2026 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 11 Chestnut Grove, Isleworth, TW7 7HA

  P/2026/0236 Submitted 26 Jan 2026 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 7 docs

• 84 Worple Road, Isleworth, TW7 7HU

  P/2026/0081 Submitted 12 Jan 2026 100 yards away

  Erection of a single storey detached outbuilding in the rear garden for use as a hobby room

  Granted Householder 6 docs
  Small domestic

• 70 Worple Road, Isleworth, TW7 7HU

  P/2026/0671 Submitted 26 Feb 2026 100 yards away

  Erection of a rear roof extension, including extension over the existing rear outrigger, and two front roof windows.

  Granted Householder Extension Windows or glazing 8 docs
  Domestic

• 101 WORPLE ROAD, ISLEWORTH, TW7 7HT

  P/2023/0120 Submitted 12 Jan 2023 100 yards away

  Erection of a single storey side extension

  Granted Householder Extension 10 docs
  Small domestic

• PA/2026/2437 Refused

  17 Orchard Road, Brentford, TW8 0QX

  Ground floor rear extension 5.51 metres deep, maximum height of 2.80 metres, 2.06 metres high to the eaves

  Received 26 Aug, published by the council 2 Sep 2026 Prior approval
• PA/2026/2481 Refused

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  Received 1 Sep, published by the council 5 Sep 2026 Prior approval
• PA/2026/2768 Awaiting decision

  86 Kneller Gardens, Isleworth, TW7 7NW

  Ground floor rear extension 4.50 metres, maximum height 3.20 metres, 2.70 metres high to the eaves.

  Received 30 Sep, published by the council 6 Oct 2026 Prior approval
• PA/2026/2393 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.85 metres high to the eaves

  Received 18 Aug, published by the council 23 Aug 2026 Prior approval
• PA/2026/2364 Granted

  9 Westbourne Road, Feltham, TW13 4LX

  Ground floor rear extension 4.5 metres deep, maximum height of 2.8 metres, 2.8 metres high to the eaves

  Received 13 Aug, published by the council 23 Aug 2026 Prior approval