11 Arnold Crescent, Isleworth, TW7 7NS

1. 7 Nov 2025

   Received by Hounslow

2. 3 Dec 2025

   Validated

   Checked as complete and ready for consideration.

3. 13 Jan 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 13 January 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.

• 13 Arnold Crescent, Isleworth, TW7 7NS

  P/2025/3523 Submitted 24 Nov 2025 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 6 docs
  Small domestic

• 7-9 ARNOLD CRESCENT, ISLEWORTH, TW7 7NS

  P/2021/1937 Submitted 17 May 2021 50 yards away

  Demolition of existing twin garage and erection of joined outbuilding at rear of both properties. Erection of single storey rear extension and repaving of front garden for No 7

  Granted Householder Extension Demolition 7 docs
  Small domestic

• 6 ARNOLD CRESCENT, ISLEWORTH, TW7 7NT

  PA/2021/2662 Submitted 29 Jun 2021 50 yards away

  Ground floor rear extension 6 metres deep, maximum height of 2.95 metres, 2.80 metres high to the eaves

  Granted Prior approval Extension 9 docs

• 22 Arnold Crescent, Isleworth, TW7 7NT

  P/2026/1966 Submitted 2 Jul 2026 50 yards away

  Erection of a two storey side extension and single storey rear extension.

  Granted Householder Extension 13 docs
  Small domestic

• 23 ARNOLD CRESCENT, ISLEWORTH, TW7 7NS

  P/2023/0066 Submitted 3 Jan 2023 50 yards away

  Certificate of Lawfulness for 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 10 docs

• 23 ARNOLD CRESCENT, ISLEWORTH, TW7 7NS

  P/2023/0064 Submitted 3 Jan 2023 50 yards away

  Erection of a part single, part two storey rear extension and two storey side extension following the demolition of the existing garage

  Granted Householder Extension Demolition 16 docs
  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