38 Castle Road, Isleworth, TW7 6QS

1. 3 Feb 2026

   Received by Hounslow

2. 10 Mar 2026

   Decision issued: GRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 10 March 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 36 CASTLE ROAD, ISLEWORTH, TW7 6QS

  PA/2019/3928 Submitted 29 Oct 2019 6m away

  Ground floor rear extension 4.925 metres deep, maximum height of 3 metres, 3 metres high to the eaves

  Withdrawn Prior approval Extension 2 docs

• 18 Castle Road, Isleworth, TW7 6QS

  P/2025/2613 Submitted 27 Aug 2025 50m away

  Certificate of Lawfulness for erection of a rear roof extension and two front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 16 docs

• 12 Nottingham Road, Isleworth, TW7 6PB

  P/2026/0615 Submitted 23 Feb 2026 51m away

  Erection of a single-storey rear and side infill extension to the house.

  Granted Householder Extension 10 docs
  Small domestic

• 107 LINKFIELD ROAD, ISLEWORTH, TW7 6QW

  P/2023/0524 Submitted 16 Feb 2023 70m away

  Erection of a single storey side and rear extension.

  Granted Householder Extension 6 docs
  Small domestic

• 90 Linkfield Road, Isleworth, TW7 6QH

  P/2026/0763 Submitted 6 Mar 2026 90m away

  Details of materials submitted pursuant to Condition 9 and details of hard and soft landscape works pursuant to Condition 11 of permission P/2022/3644 dated 08/02/2023 for erection of a two-storey house with basement and cycle store, refuse enclosure, landscaping and associated works following demolition to the garage

  Granted Conditions Demolition 14 docs

• 23 GRAINGER ROAD, ISLEWORTH, TW7 6PQ

  P/2021/3246 Submitted 10 Aug 2021 108m away

  Certificate of Lawfulness for the proposed erection of a single storey side / rear infill extension and a rear roof extension incorporating a Juliet balcony and two front roof windows to the house

  Refused Lawful development Extension Windows or glazing 11 docs
  Small domestic

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

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

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

  Certificate of lawfulness for the proposed erection of a rear roof extension and windows to the front of the house.

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

  Certificate of lawfulness for the proposed erection of a rear roof extension and Juliette balcony with front roof windows to the house.

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

  Certificate of lawfulness for the proposed erection of a rear roof extension, a porch to the front of the house, and a front roof window.

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development