13 Denbigh Road, Hounslow, TW3 4DU

This site has had 3 applications since 2026: 2 approved, 0 refused.

• P/2026/1741 Granted

  13 Denbigh Road, Hounslow, TW3 4DU

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

  Decided 5 Aug 2026 Lawful development
• PA/2026/1280 Granted

  13 Denbigh Road, Hounslow, TW3 4DU

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.75 metres high to the eaves.

  Decided 5 Jun 2026 Prior approval

1. 1 Oct 2026

   Received by Hounslow

2. 9 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 26 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 56 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.

• 13 Denbigh Road, Hounslow, TW3 4DU

  P/2026/1741 Submitted 12 Jun 2026 50 yards away

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

  Granted Lawful development Extension 4 docs
  Small domestic

• 13 Denbigh Road, Hounslow, TW3 4DU

  PA/2026/1280 Submitted 28 Apr 2026 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.75 metres high to the eaves.

  Granted Prior approval Extension 4 docs

• 23 DENBIGH ROAD, HOUNSLOW, TW3 4DU

  P/2023/0782 Submitted 13 Mar 2023 50 yards away

  Erection of a part two storey, part single rear extension to the house

  Granted Householder Extension 10 docs
  Domestic

• 25 DENBIGH ROAD, HOUNSLOW, TW3 4DU

  P/2021/2522 Submitted 21 Jun 2021 50 yards away

  Erection of a first floor rear extension.

  Granted Householder Extension 7 docs
  Domestic

• 81 Tiverton Road, Hounslow, TW3 4JE

  P/2026/0960 Submitted 24 Mar 2026 50 yards away

  Erection of a single-storey rear infill extension to the ground floor flat and a rear roof extension with two front roof windows to the first floor flat.

  Granted Full applications Extension Windows or glazing 9 docs
  Small domestic

• 81 Tiverton Road, Hounslow, TW3 4JE

  P/2025/2889 Submitted 25 Sep 2025 50 yards away

  Certificate of lawfulness for the existing use of the house as two self-contained flats.

  Granted Lawful development New dwelling 6 docs

• 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/2026/2790 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
• P/2026/2305 Granted

  64 Springwell Road, Hounslow, TW5 9EJ

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

  Received 7 Aug, published by the council 12 Aug 2026 Lawful development