18 Sutton Way, Hounslow, TW5 0JA

1. 3 Feb 2026

   Received by Hounslow

2. 2 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 1 Jun 2026

   Decision issued: GRANT

4. 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

• 18 Sutton Way, Hounslow, TW5 0JA

  P/2026/1723 Submitted 10 Jun 2026 0m away

  76% historically approved · decision due ~22 Oct

  Erection of a front porch extension, rear roof extension with hip to gable conversion, single storey rear and part first floor rear extension.

  Awaiting decision Householder Extension Loft or dormer 7 docs
  Small domestic

• 18 Sutton Way, Hounslow, TW5 0JA

  PA/2025/3684 Submitted 11 Dec 2025 0m away

  Ground floor rear extension 6.00 metres deep, maximum height 2.95 metres, 2.95 metres high to the eaves.

  Granted Prior approval Extension 8 docs

• 76A Upper Sutton Lane, Hounslow, TW5 0PT

  P/2025/1537 Submitted 14 May 2025 93m away

  65% historically approved · decision due ~29 Jul

  Change of use from a single family dwelling Use Class C3 to a Large House in Multiple Occupation HMO Use Class Sui Generis for up to 10 people

  Awaiting decision Full applications 14 docs
  Domestic

• 24 SUTTON SQUARE, HOUNSLOW, TW5 0JQ

  P/2021/2095 Submitted 26 May 2021 93m away

  Erection of a first floor rear extension to the house

  Granted Householder Extension 10 docs
  Domestic

• 120 THE CROSSWAYS, HOUNSLOW, TW5 0JR

  P/2021/2286 Submitted 8 Jun 2021 119m away

  Erection of a part first floor rear extension.

  Granted Householder Extension 5 docs
  Domestic

• 120 THE CROSSWAYS, HOUNSLOW, TW5 0JR

  P/2021/2245 Submitted 4 Jun 2021 119m away

  Certificate of Lawfulness for the proposed erection of a detached outbuilding to rear of garden to the house for use as garden store, games room and gym

  Granted Lawful development 5 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