39 Bankside Close, Isleworth, TW7 7EW

1. 29 Jan 2026

   Received by Hounslow

2. 25 Mar 2026

   Decision issued: APPROVED

3. 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

• 39 Bankside Close, Isleworth, TW7 7EW

  P/2026/2194 Submitted 28 Jul 2026 0m away

  Non material amendment to change the colour of the frames of the windows and doors in the approved extension to anthracite grey from white of planning permission P/2026/0274 approved 25/03/2026 for the erection of a single storey rear extension to the house

  Granted Amendments Extension Windows or glazing 4 docs
  Small domestic

• 33 BANKSIDE CLOSE, ISLEWORTH, TW7 7EW

  P/2021/2540 Submitted 22 Jun 2021 36m away

  Erection of a part single storey infill side extension.

  Refused Householder Extension 5 docs
  Small domestic

• 16 Lynton Close, Isleworth, TW7 7ET

  P/2026/2426 Submitted 25 Aug 2026 43m away

  65% historically approved · decision due ~20 Oct

  Erection of a two storey residential house with associated car parking, landscaping, solar panels, cycle and refuse storage.

  Awaiting decision Full applications 16 docs

• 2 LYNTON CLOSE, ISLEWORTH, TW7 7ET

  P/2021/2722 Submitted 5 Jul 2021 81m away

  Certificate of Lawfulness for the proposed erection of a rear roof extension incorporating three front roof windows to the house

  Granted Lawful development Extension Windows or glazing 7 docs

• 425 Twickenham Road, Isleworth, TW7 7ES

  P/2025/3369 Submitted 10 Nov 2025 91m away

  Erection of a single storey rear extension and part ground floor part first floor side extension to the house.

  Granted Householder Extension 9 docs
  Small domestic

• 425 Twickenham Road, Isleworth, TW7 7ES

  P/2025/2736 Submitted 10 Sep 2025 91m away

  Certificate of lawfulness for the proposed erection of a single storey rear extension to the house and a detached single storey outbuilding

  Granted Lawful development Extension 9 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