55 Clifford Road, Hounslow, TW4 7LS

1. 23 Sep 2026

   Received by Hounslow

2. 6 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 18 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.

• 45 CLIFFORD ROAD, HOUNSLOW, TW4 7LS

  P/2023/0043 Submitted 4 Jan 2023 50 yards away

  Erection of a hip to gable and rear roof extension with two front roof windows to the house

  Granted Householder Extension Loft or dormer +1 11 docs
  Domestic

• 44 CLIFFORD ROAD, HOUNSLOW, TW4 7LT

  P/2022/2421 Submitted 25 Jul 2022 50 yards away

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

  Refused Lawful development New dwelling 13 docs

• 33 Clifford Road, Hounslow, TW4 7LS

  P/2026/0397 Submitted 9 Feb 2026 100 yards away

  Conversion of the house into two self contained flats

  Refused Full applications New dwelling 12 docs

• 92 Basildene Road, Hounslow, TW4 7LU

  P/2026/1109 Submitted 7 Apr 2026 100 yards away

  64% historically approved · decision due ~7 Jul

  Erection of a two storey house fronting Marnell Way following the demolition of the garage

  Awaiting decision Full applications Demolition 11 docs

• 99 Basildene Road, Hounslow, TW4 7LX

  PA/2026/1584 Submitted 27 May 2026 100 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.30 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 5 docs

• 99 Basildene Road, Hounslow, TW4 7LX

  P/2026/1635 Submitted 27 May 2026 100 yards away

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

  Granted Lawful development Extension Loft or dormer +1 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/2026/2787 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