6 Alton Close, Isleworth, TW7 6AL

1. 8 Oct 2025

   Received by Hounslow

2. 2 Dec 2025

   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

• 6 Alton Close, Isleworth, TW7 6AL

  P/2025/2854 Submitted 23 Sep 2025 0m away

  Certificate of Lawfulness for erection of a rear roof extension with a hip to gable conversion, and three front roof windows to the house.

  Granted Lawful development Extension Loft or dormer +1 20 docs

• 6 Alton Close, Isleworth, TW7 6AL

  P/2025/0931 Submitted 24 Mar 2025 0m 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.

  Withdrawn Lawful development Extension Loft or dormer +1 20 docs

• 6 Alton Close, Isleworth, TW7 6AL

  P/2026/1209 Submitted 20 Apr 2026 0m away

  Certificate of lawfulness for the proposed erection of a single storey detached outbuilding for use as an office and a front porch extension to the house.

  Granted Lawful development Extension 18 docs
  Small domestic

• 8 Alton Close, Isleworth, TW7 6AL

  P/2024/3818 Submitted 15 Nov 2024 9m away

  Certificate of Lawfulness for the proposed erection of a single storey detached outbuilding as an office in rear garden.

  Granted Lawful development 5 docs
  Small domestic

• 20 AMHURST GARDENS, ISLEWORTH, TW7 6AJ

  PA/2019/4025 Submitted 6 Nov 2019 40m away

  Ground floor rear extension 6 metres deep, maximum height of 2.9 metres, 2.4 metres high to the eaves

  Granted Prior approval Extension 9 docs

• Land Rear of 26-48 & 34 Amhurst Gardens, Isleworth TW7 6AJ

  P/2026/1136 Submitted 13 Apr 2026 48m away

  Details of Conditions 6 (Construction Logistics Plan) submitted pursuant to planning permission P/2025/0430 dated 28/11/2025 for Erection of eight houses with an associated access road, private parking, amenity space, landscaping, cycle and bin stores following the demolition of 34 Amhurst Gardens

  Granted Conditions Demolition 15 docs
  Several homes

• 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