88 Syon Lane, Isleworth, TW7 5NQ

This site has had 2 applications since 2025: 2 approved, 0 refused.

• PA/2025/3283 Granted

  88 Syon Lane, Isleworth, TW7 5NQ

  Ground floor rear extension 6.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

  Decided 8 Dec 2025 Prior approval

1. 3 Nov 2025

   Received by Hounslow

2. 12 Dec 2025

   Decision issued: GRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 12 December 2025, 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.

• 88 Syon Lane, Isleworth, TW7 5NQ

  PA/2025/3283 Submitted 30 Oct 2025 0m away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 4 docs

• 104 SYON LANE, ISLEWORTH, TW7 5NJ

  PA/2021/2710 Submitted 2 Jul 2021 58m away

  Ground floor rear extension 6 metres deep, maximum height of 2.80 metres, 2.80 metres high to the eaves

  Granted Prior approval Extension 9 docs

• 108 Syon Lane, Isleworth, TW7 5NJ

  PA/2026/2043 Submitted 10 Jul 2026 73m away

  Ground floor rear extension 6.00 metres deep, maximum height 3.40 metres, 2.90 metres high to the eaves.

  Granted Prior approval Extension 6 docs

• 112A Syon Lane, Isleworth, TW7 5NJ

  P/2024/3650 Submitted 4 Nov 2024 99m away

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

  Granted Lawful development Extension Loft or dormer +1 19 docs

• 850-852 GREAT WEST ROAD, ISLEWORTH, TW7 5NG

  P/2021/2546 Submitted 22 Jun 2021 113m away

  Erection of part single storey rear extensions to Flats B at both properties .

  Refused Full applications New dwelling Extension 5 docs
  Small domestic

• 42A SYON LANE, ISLEWORTH, TW7 5NQ

  P/2023/0674 Submitted 1 Mar 2023 163m away

  Certificate of lawfulness existing for the continued use as two flats

  Refused Lawful development New dwelling 10 docs
  Several homes

• 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