117 Northumberland Crescent, Feltham, TW14 9SP

1. 18 Nov 2025

   Received by Hounslow

2. 9 Jan 2026

   Decision issued: LAWFNOTGRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 9 January 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.

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.

• 115 Northumberland Crescent, Feltham, TW14 9SP

  P/2026/2027 Submitted 8 Jul 2026 50 yards away

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

  Granted Lawful development Extension Windows or glazing 8 docs

• 115 Northumberland Crescent, Feltham, TW14 9SP

  PA/2026/2028 Submitted 8 Jul 2026 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.70 metres high to the eaves.

  Refused Prior approval Extension 7 docs

• 108 Northumberland Crescent, Feltham, TW14 9SW

  PA/2026/0817 Submitted 11 Mar 2026 100 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.40 metres, 2.90 metres high to the eaves

  Granted Prior approval Extension 5 docs

• 52 Northumberland Crescent, Feltham, TW14 9SZ

  P/2024/2789 Submitted 16 Aug 2024 150 yards away

  Certificate of Lawfulness for the proposed erection of a detached outbuilding in the rear garden and front porch extension to the house.

  Granted Lawful development Extension 44 docs
  Small domestic

• 42 NORTHUMBERLAND CRESCENT, FELTHAM, TW14 9SZ

  PA/2021/2708 Submitted 2 Jul 2021 150 yards away

  Ground floor rear extension 6 metres deep, maximum height of 3 metres, 2.40 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 62 New Road, Bedfont, TW14 8HT

  P/2025/2493 Submitted 12 Aug 2025 150 yards away

  Erection of single-storey rear extension to the house and conversion of the existing garage to habitable accommodation.

  Granted Householder Extension 5 docs
  Small domestic

• P/2026/2813 Awaiting decision

  150 Wood Lane, Isleworth, TW7 5EQ

  (GSGS877009741) Certificate of lawfulness proposed for the erection of a single storey outbuilding to be used as a home gym / playroom / shed in the rear garden of the house

  Received 5 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2334 Granted

  69 Central Avenue, Hounslow, TW3 2QW

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

  Received 12 Aug, published by the council 16 Aug 2026 Lawful development
• P/2026/2459 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Certificate of Lawfulness for the proposed hip to gable roof conversion, installation of two front roof windows, and erection of a rear roof extension to the existing house.

  Received 28 Aug, published by the council 5 Sep 2026 Lawful development
• P/2026/2787 Awaiting decision

  13 Denbigh Road, Hounslow, TW3 4DU

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

  Received 1 Oct, published by the council 9 Oct 2026 Lawful development
• P/2026/2790 Awaiting decision

  14 Old Farm Close, Hounslow, TW4 7AB

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

  Received 1 Oct, published by the council 6 Oct 2026 Lawful development