55 Dawes Avenue, Isleworth, TW7 7JS

1. 16 Sep 2024

   Received by Hounslow

2. 23 Sep 2024

   Validated

   Checked as complete and ready for consideration.

3. 18 Nov 2024

   Decision issued: LAWFNOTGRANT

4. 3 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 18 November 2024, 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.

• 65 DAWES AVENUE, ISLEWORTH, TW7 7JS

  P/2019/3957 Submitted 30 Oct 2019 50 yards away

  Certificate of Lawfulness for the erection of front porch and rear roof extension with juilete balcony and front roof windows to the house

  Refused Lawful development Extension Windows or glazing 11 docs
  Small domestic

• 133 Haliburton Road Twickenham TW1 1PE

  24/2778/HOT Submitted 6 Nov 2024 50 yards away

  Proposed construction of a single-storey rear infill extension

  Granted Householder Extension 12 docs
  Small domestic

• 60 DAWES AVENUE, ISLEWORTH, TW7 7JS

  P/2021/2038 Submitted 24 May 2021 50 yards away

  Removal of conditions 3 and 4 (restricting 'permitted development' rights) of planning permission 00337/60/P4 dated 07/06/2000 for the sub-division of existing dwelling house into one two-bedroom dwelling house and one one-bedroom dwellinghouse

  Refused Full applications 9 docs
  Domestic

• 145, Haliburton Road, Twickenham, TW1 1PE

  PA26/0983 Submitted 20 Mar 2026 100 yards away

  Erection of rear extension to create a sun room.

  Granted Householder Extension 21 docs
  Domestic

• 147, Haliburton Road, Twickenham, TW1 1PE

  PA25/3392 Submitted 29 Sep 2025 100 yards away

  Variation of condition 2 (approved drawings), of planning permission 22/0487/FUL - to allow for change of change of rear patio door to full width bifold doors, replacement of single window with door to rear elevation and change location of one side elevation window to rear outrigger, flat roof to ground floor, replace 2 velux windows to roof lantern, extend the width of the rear dormer, and associated internal rearrangements.

  Granted Amendments Extension Loft or dormer +1 9 docs

• 94 Haliburton Road Twickenham Richmond Upon Thames TW1 1PH

  04/3870/PS192 Submitted 3 Dec 2004 100 yards away

  Proposed Loft Extension.

  Granted Prior approval Extension Loft or dormer 7 docs

• P/2026/2651 Awaiting decision

  3 Clayponds Avenue, Brentford, TW8 9QQ

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

  Received 17 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2627 Awaiting decision

  23 Elmgate Avenue, Feltham, TW13 7BU

  Certificate of lawfulness for the proposed change of use from residential house Class C3a to a residential home for up to 3 young people aged between 7 and 18 Class C2

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2631 Awaiting decision

  17 Northumberland Avenue, Isleworth, TW7 5HZ

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

  Received 15 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2606 Awaiting decision

  35 Jersey Road, Hounslow, TW3 4BQ

  Certificate of Lawfulness for the Existing Continued Use as a Five Bedroom House in Multiple Occupation (HMO).

  Received 14 Sep, published by the council 20 Sep 2026 Lawful development
• P/2026/2609 Awaiting decision

  47 Sutton Road, Hounslow, TW5 0PN

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

  Received 14 Sep, published by the council 20 Sep 2026 Lawful development