19 Gainsborough Gardens, Isleworth, TW7 7PE

1. 2 Mar 2026

   Received by Hounslow

2. 18 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 13 May 2026

   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

• 19 Gainsborough Gardens, Isleworth, TW7 7PE

  P/2024/3274 Submitted 30 Sep 2024 0m away

  Erection of a two storey side, part single storey rear and first floor rear extension

  Refused Householder Extension 9 docs
  Small domestic

• 34 Southland Way, Hounslow, TW3 2RH

  P/2025/2482 Submitted 12 Aug 2025 52m away

  Erection of a single storey rear extension to the house.

  Refused Householder Extension 10 docs
  Small domestic

• 10 & 12 Southland Way, Hounslow,TW3 2RH

  P/2024/3478 Submitted 18 Oct 2024 96m away

  Joint application for the erection of a single storey rear extension to 10 and 12 Southland Way

  Granted Householder Extension 12 docs
  Small domestic

• 50 Rosebery Road, Hounslow, TW3 2RE

  P/2025/2528 Submitted 15 Aug 2025 116m away

  Erection of a single storey rear extension

  Granted Householder Extension 8 docs
  Small domestic

• 15 SOUTHLAND WAY, HOUNSLOW, TW3 2RH

  PA/2023/0845 Submitted 16 Mar 2023 119m away

  Ground floor rear extension 6.00 meters deep, maximum height of 3.00 metres, 2.95 metres high to the eaves

  Granted Prior approval Extension 20 docs

• 8 Southland Way, Hounslow, TW3 2RH

  PA/2026/0302 Submitted 2 Feb 2026 131m away

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.97 metres high to the eaves.

  Granted Prior approval Extension 9 docs

• 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