66 Waye Avenue, Hounslow, TW5 9SE

1. 28 Apr 2026

   Received by Hounslow

2. 2 Jun 2026

   Decision issued: GRANT

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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 66 Waye Avenue, Hounslow, TW5 9SE

  P/2026/1740 Submitted 12 Jun 2026 0m away

  Certificate of lawfulness for the proposed erection of a single storey rear extension and a single storey detached outbuilding.

  Granted Lawful development Extension 8 docs
  Small domestic

• 66 Waye Avenue, Hounslow, TW5 9SE

  PA/2026/1390 Submitted 7 May 2026 0m away

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

  Refused Prior approval Extension 6 docs

• 60 Waye Avenue, Hounslow, TW5 9SE

  P/2024/3360 Submitted 7 Oct 2024 17m away

  Extension of the existing vehicular access to the front of the house

  Refused Householder Extension 8 docs
  Domestic

• 127 WAYE AVENUE, HOUNSLOW, TW5 9SQ

  PA/2023/0350 Submitted 2 Feb 2023 46m away

  Ground floor rear extension 4.00 metres deep, maximum height 3.49 metres, 2.65 metres high to the eaves

  Granted Prior approval Extension 8 docs

• 92 Waye Avenue, Hounslow, TW5 9SF

  PA/2026/1781 Submitted 16 Jun 2026 50m away

  91% historically approved · decision due ~11 Aug

  Ground floor rear extension 5.50 metres deep, maximum height of 3.50 metres, 2.60 metres high to the eaves

  Awaiting decision Prior approval Extension 5 docs

• 143 Waye Avenue, Hounslow, TW5 9SQ

  P/2026/1481 Submitted 15 May 2026 62m away

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

  Granted Lawful development Extension Loft or dormer +1 6 docs

• 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