35 Martindale Road, Hounslow, TW4 7EW

1. 26 Jan 2026

   Received by Hounslow

2. 17 Mar 2026

   Decision issued: GRANT

3. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 33 Martindale Road, Hounslow, TW4 7EW

  P/2025/3267 Submitted 29 Oct 2025 5m away

  Erection of single storey rear extension to the house

  Granted Householder Extension 8 docs
  Small domestic

• 29 Martindale Road,Hounslow,TW4 7EW

  P/2024/3400 Submitted 11 Oct 2024 17m away

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

  Granted Lawful development New dwelling 5 docs

• 21-23 Martindale Road, Hounslow, TW4 7EW

  P/2025/3053 Submitted 10 Oct 2025 37m away

  Installation of new windows and doors to allow the conversion of the existing two residential houses to four self contained flats.

  Refused Full applications New dwelling Windows or glazing 6 docs

• 18 Martindale Road, Hounslow, TW4 7EP

  P/2025/3745 Submitted 18 Dec 2025 43m away

  Erection of a detached single storey outbuilding in the rear garden.

  Refused Householder 7 docs
  Small domestic

• 2 Martindale Road, Hounslow, TW4 7EP

  P/2024/4053 Submitted 29 Nov 2024 72m away

  65% historically approved · decision due ~5 Feb

  Change of use from the existing residential house (C3) into a care home (C2)

  Awaiting decision Full applications 2 docs

• 28 MARTINDALE ROAD, HOUNSLOW, TW4 7EP

  PA/2019/3883 Submitted 25 Oct 2019 78m away

  Ground floor rear extension 5 metres deep, maximum height of 3 metres, 2.57 metres high to the eaves

  Granted Prior approval Extension 10 docs

• 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