42 College Road, Isleworth, TW7 5DW

This site has had 3 applications since 2021: 2 approved, 0 refused.

• P/2026/0773 Granted

  42 College Road, Isleworth, TW7 5DW

  Erection of a single storey rear and side infill extension to the house

  Decided 17 Jun 2026 Householder
• P/2021/2330 Granted

  42 COLLEGE ROAD, ISLEWORTH, TW7 5DW

  Erection of a rear roof extension with juliet balcony and two front roof windows.

  Decided 3 Aug 2021 Householder

1. 27 Aug 2026

   Received by Hounslow

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 October 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.

• 42 College Road, Isleworth, TW7 5DW

  P/2026/0773 Submitted 6 Mar 2026 50 yards away

  Erection of a single storey rear and side infill extension to the house

  Granted Householder Extension 12 docs
  Small domestic

• 42 COLLEGE ROAD, ISLEWORTH, TW7 5DW

  P/2021/2330 Submitted 9 Jun 2021 50 yards away

  Erection of a rear roof extension with juliet balcony and two front roof windows.

  Granted Householder Extension Windows or glazing 10 docs
  Domestic

• 48 College Road, Isleworth, TW7 5DW

  P/2026/1417 Submitted 11 May 2026 50 yards away

  Works to hedge in a Conservation Area. Griselinia hedge located in garden. Fell to ground level.

  Granted Trees 4 docs

• 1 HIGHFIELD ROAD, ISLEWORTH, TW7 5LD

  P/2021/0785 Submitted 26 Feb 2021 50 yards away

  Erection of single storey rear and side extension.

  Granted Householder Extension 13 docs
  Small domestic

• 71 College Road, Isleworth, TW7 5DP

  P/2026/2496 Submitted 26 Aug 2026 50 yards away

  64% historically approved · decision due ~23 Nov

  Erection of a single storey rear extension, front porch extension and first floor extension to allow the conversion of the existing family house to three self contained flats with associated car parking, private amenity space, cycle and refuse storage.

  Awaiting decision Full applications New dwelling Extension 17 docs
  Small domestic

• 71 College Road, Isleworth, TW7 5DP

  P/2026/2449 Submitted 26 Aug 2026 50 yards away

  64% historically approved · decision due ~23 Nov

  Erection of a single storey rear extension, front porch extension and first floor extension to allow the conversion of the existing family house to two self contained flats with associated car parking, private amenity space, cycle and refuse storage.

  Awaiting decision Full applications New dwelling Extension 16 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