36 Arnold Crescent, Isleworth, TW7 7NT

1. 18 Sep 2025

   Received by Hounslow

2. 22 Sep 2025

   Validated

   Checked as complete and ready for consideration.

3. 17 Nov 2025

   Decision issued: APPROVED

4. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 23 ARNOLD CRESCENT, ISLEWORTH, TW7 7NS

  P/2023/0064 Submitted 3 Jan 2023 45m 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

• 26 Arnold Crescent, Isleworth, TW7 7NT

  P/2026/1787 Submitted 16 Jun 2026 48m away

  Erection of a single storey rear infill extension and replacement of garage door to window at the front of the house.

  Granted Householder Extension Windows or glazing 6 docs
  Small domestic

• 25 Arnold Crescent, Isleworth, TW7 7NS

  P/2026/2503 Submitted 3 Sep 2026 50m away

  76% historically approved · decision due ~29 Oct

  Erection of a single storey rear, two storey side extension, and rear roof extension with two front roof windows to the house.

  Awaiting decision Householder Extension Windows or glazing 11 docs
  Small domestic

• 27 Arnold Crescent, Isleworth, TW7 7NS

  P/2024/3295 Submitted 2 Oct 2024 54m away

  Proposal for the erection of a hip to gable conversion, rear dormer and three roof windows

  Refused Householder Loft or dormer Windows or glazing 9 docs
  Domestic

• 15 Crofters Close, Isleworth, TW7 7PH

  P/2025/3515 Submitted 21 Nov 2025 59m away

  Erection of a rear roof extension with two front roof windows and front porch extension

  Granted Householder Extension Windows or glazing 10 docs
  Small domestic

• 13 Arnold Crescent, Isleworth, TW7 7NS

  P/2025/3523 Submitted 24 Nov 2025 64m 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

• P/2026/2047 Granted

  9 Borough Road, Isleworth, TW7 5DY

  Erection of a single storey rear extension.

  10 Jul 2026 Householder
• P/2026/1858 Granted

  8 CONNAUGHT AVENUE, HOUNSLOW, TW4 5BW

  Erection of single storey front extension to the outbuilding for used as storage, office and a Gym. Following part demolition of the outbuilding.

  23 Jun 2026 Householder
• P/2026/2503 Awaiting decision

  25 Arnold Crescent, Isleworth, TW7 7NS

  Erection of a single storey rear, two storey side extension, and rear roof extension with two front roof windows to the house.

  3 Sep 2026 Householder
• P/2026/1522 Granted

  4 Camborne Way, Hounslow, TW5 0PW

  Erection of a single storey rear extension and reduction in width of the existing side and rear extension.

  20 May 2026 Householder
• P/2026/2024 Granted

  20 Hartland Road, Isleworth, TW7 6RH

  Erection of a rear roof extension with windows to the front of the house.

  8 Jul 2026 Householder