17 Saxon Avenue, Feltham, TW13 5JJ

1. 21 Sep 2026

   Received by Hounslow

2. 23 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 16 November 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided lawful development applications in a median of 55 days. More in our guide to how long planning decisions take.

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.

• 27 SAXON AVENUE, FELTHAM, TW13 5JJ

  P/2021/2080 Submitted 25 May 2021 50 yards away

  Erection of part single part two storey side and part single and part two storey rear extension to the house

  Refused Householder Extension 12 docs
  Domestic

• 8 Saxon Avenue, Feltham, TW13 5JN

  P/2026/1991 Submitted 6 Jul 2026 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 8 Saxon Avenue, Feltham, TW13 5JN

  P/2026/1992 Submitted 6 Jul 2026 50 yards away

  76% historically approved · decision due ~31 Aug

  Erection of a single storey rear extension.

  Awaiting decision Householder Extension 9 docs
  Small domestic

• 5 SAXON AVENUE, FELTHAM, TW13 5JJ

  P/2023/0661 Submitted 28 Feb 2023 50 yards away

  Erection of a single storey rear and part first floor rear extension with steps to rear garden

  Granted Householder Extension 13 docs
  Small domestic

• 1 Saxon Avenue, Feltham, TW13 5JJ

  P/2024/2773 Submitted 15 Aug 2024 50 yards away

  Erection of a two storey side extension and rear roof extension to the house.

  Granted Householder Extension 18 docs
  Domestic

• 35 SAXON AVENUE, FELTHAM, TW13 5JJ

  P/2021/2295 Submitted 7 Jun 2021 50 yards away

  Erection of a single storey side and rear extension following demolition of existing conservatory.

  Granted Householder Extension Demolition 6 docs
  Small domestic

• P/2026/2668 Awaiting decision

  45 Shelley Crescent, Hounslow, TW5 9BQ

  Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  Received 21 Sep, published by the council 23 Sep 2026 Lawful development
• P/2026/2651 Awaiting decision

  3 Clayponds Avenue, Brentford, TW8 9QQ

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

  Received 17 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2627 Awaiting decision

  23 Elmgate Avenue, Feltham, TW13 7BU

  Certificate of lawfulness for the proposed change of use from residential house Class C3a to a residential home for up to 3 young people aged between 7 and 18 Class C2

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2631 Awaiting decision

  17 Northumberland Avenue, Isleworth, TW7 5HZ

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

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2606 Awaiting decision

  35 Jersey Road, Hounslow, TW3 4BQ

  Certificate of Lawfulness for the Existing Continued Use as a Five Bedroom House in Multiple Occupation (HMO).

  Received 14 Sep, published by the council 20 Sep 2026 Lawful development