88 Syon Lane, Isleworth, TW7 5NQ

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

• P/2025/3300 Granted

  88 Syon Lane, Isleworth, TW7 5NQ

  Certificate of lawfulness for proposed rear roof extension with hip to gable conversion and two front roof windows, and erection of a detached single storey outbuilding

  Decided 12 Dec 2025 Lawful development

1. 30 Oct 2025

   Received by Hounslow

2. 8 Dec 2025

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 8 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.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• 88 Syon Lane, Isleworth, TW7 5NQ

  P/2025/3300 Submitted 3 Nov 2025 0m away

  Certificate of lawfulness for proposed rear roof extension with hip to gable conversion and two front roof windows, and erection of a detached single storey outbuilding

  Granted Lawful development Extension Loft or dormer +1 4 docs
  Small domestic

• 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

• PA/2026/2167 Granted

  2 Church Walk, Brentford, TW8 8DB

  Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.

  24 Jul 2026 Prior approval
• PA/2026/2475 Awaiting decision

  4 Upton Road, Hounslow, TW3 3HP

  GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2481 Awaiting decision

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2458 Awaiting decision

  82 Ringway, Southall, UB2 5SU

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

  28 Aug 2026 Prior approval
• PA/2026/2461 Awaiting decision

  24 Kingston Avenue, Feltham, TW14 9SL

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

  28 Aug 2026 Prior approval