17 Dalmeny Crescent, Hounslow, TW3 2NT

1. 24 Feb 2026

   Received by Hounslow

2. 25 Mar 2026

   Decision issued: GRANT

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 25 March 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.

• 83 CHATSWORTH CRESCENT, HOUNSLOW, TW3 2PF

  PA/2023/0959 Submitted 27 Mar 2023 52m away

  Ground floor rear extension 6.00 metres deep, maximum height 3.28 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 6 docs

• 152 Heath Road,Hounslow,TW3 2NS

  P/2026/1746 Submitted 12 Jun 2026 74m away

  76% historically approved · decision due ~29 Sep

  Retrospective application for the erection of a single-storey detached outbuilding to the rear of the house.

  Awaiting decision Householder 2 docs
  Small domestic

• 166 HEATH ROAD, HOUNSLOW, TW3 2NS

  P/2021/2213 Submitted 3 Jun 2021 74m away

  Erection of a single storey self contained unit in the rear garden of the house

  Withdrawn Householder 5 docs
  Small domestic

• 166 HEATH ROAD, HOUNSLOW, TW3 2NS

  P/2021/2288 Submitted 8 Jun 2021 74m away

  Erection of a part single part two storey side extension to the house

  Refused Householder Extension 7 docs
  Domestic

• 177 HEATH ROAD, HOUNSLOW, TW3 2NR

  PA/2019/4153 Submitted 18 Nov 2019 94m away

  Ground floor rear extension 5.270 metres deep, maximum height of 3.870 metres, 2.640 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 2 DALMENY CRESCENT, HOUNSLOW, TW3 2NT

  P/2023/0640 Submitted 27 Feb 2023 100m away

  Erection of part first floor rear extension to the house

  Withdrawn Householder Extension 6 docs
  Domestic

• P/2026/2033 Granted

  3 Benedict Drive, Feltham, TW14 8JH

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

  8 Jul 2026 Lawful development
• P/2026/2027 Granted

  115 Northumberland Crescent, Feltham, TW14 9SP

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

  8 Jul 2026 Lawful development
• P/2026/2009 Granted

  3 Brainton Avenue, Feltham, TW14 0AZ

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

  7 Jul 2026 Lawful development
• P/2026/2014 Granted

  82 Sussex Avenue, Isleworth, TW7 6LB

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

  7 Jul 2026 Lawful development
• P/2026/2473 Awaiting decision

  16 Somerset Waye, Hounslow, TW5 9HG

  Certificate of lawfulness for the proposed erection of a rear roof extension with two roof windows to the front and alterations to the existing side roof from flat roof to pitched roof.

  1 Sep 2026 Lawful development