3 Welwyn Avenue, Feltham, TW14 9SJ

This site has had 2 applications since 2026: 2 approved, 0 refused.

• PA/2026/0899 Granted

  3 Welwyn Avenue, Feltham, TW14 9SJ

  Ground floor rear extension 5.28 metres deep, maximum height 2.90 metres, 2.60 metres high to the eaves.

  Decided 27 Apr 2026 Prior approval

1. 18 Jun 2026

   Received by Hounslow

2. 14 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. 12 Aug 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

5. 8 Sep 2026

   Decision issued: APPROVED

Hounslow granted permission on 8 September 2026, 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.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 3 Welwyn Avenue, Feltham, TW14 9SJ

  PA/2026/0899 Submitted 18 Mar 2026 0m away

  Ground floor rear extension 5.28 metres deep, maximum height 2.90 metres, 2.60 metres high to the eaves.

  Granted Prior approval Extension 6 docs

• 1 Welwyn Avenue, Feltham, TW14 9SJ

  PA/2024/3584 Submitted 29 Oct 2024 3m away

  Ground floor rear extension 5.285 metres deep, maximum height of 2.90 metres, 2.90 metres high to the eaves

  Granted Prior approval Extension 10 docs

• 49 Longford Avenue, Feltham, TW14 9TH

  P/2025/3108 Submitted 15 Oct 2025 38m away

  Variation of condition 2 (approved plans) to increase the roof height, introduce a flush rooflight above the bathroom, add one obscured side window and change all external windows and doors to Anthracite Grey of planning permission P/2025/0061 approved 10/06/2025 for the Erection of a single storey detached outbuilding for ancillary use to the main house.

  Granted Conditions Loft or dormer Windows or glazing 5 docs
  Small domestic

• 48 Longford Avenue, Feltham, TW14 9TG

  P/2026/0508 Submitted 11 Feb 2026 55m away

  Demolition of existing conservatory and erection of a single storey rear extension to the house.

  Granted Householder Extension Demolition 8 docs
  Small domestic

• 17 Welwyn Avenue, Feltham, TW14 9SJ

  P/2026/1226 Submitted 20 Apr 2026 62m away

  Conversion of the existing garage into a habitable room and erection of a front porch extension to the house.

  Granted Householder Extension 6 docs
  Small domestic

• 26 LONGFORD AVENUE, FELTHAM, TW14 9TG

  PA/2021/3145 Submitted 2 Aug 2021 88m away

  Ground floor rear extension 6 metres deep, maximum height of 3.6 metres, 2.6 metres high to the eaves

  Granted Prior approval Extension 7 docs

• P/2026/2623 Awaiting decision

  8 Lonsdale Road,Chiswick,W4 1ND

  Installation of external condenser at first floor level.

  Received 15 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2125 Granted

  36 Midsummer Avenue, Hounslow, TW4 5BB

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

  Received 21 Jul, published by the council 30 Jul 2026 Householder
• P/2026/2615 Awaiting decision

  48 Meadow Waye, Hounslow, TW5 9EZ

  Erection of a part first floor rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2619 Awaiting decision

  12 Letchworth Avenue, Feltham, TW14 9RY

  Erection of a single storey rear extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder
• P/2026/2600 Awaiting decision

  310 Lionel Road North, Brentford, TW8 9QX

  Erection of a rear roof extension.

  Received 14 Sep, published by the council 17 Sep 2026 Householder