69 Cromwell Road, Hounslow, TW3 3QG

1. 1 Sep 2026

   Received by Hounslow

2. 5 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 27 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 55 days over the applications it decided in the last year.

This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 49 Nicholes Road, Hounslow, TW3 3QH

  P/2026/1353 Submitted 5 May 2026 69m away

  Change of use from the existing single family house (C3) to a House in Multiple Occupation (C4).

  Refused Full applications 10 docs

• 62 CROMWELL ROAD, HOUNSLOW, TW3 3QJ

  P/2023/0525 Submitted 16 Feb 2023 83m away

  Change of use from 5 to 8 people for House in Multiple Occupation (HMO)

  Withdrawn Full applications 4 docs

• 66 Cromwell Road, Hounslow, TW3 3QJ

  P/2024/2431 Submitted 19 Jul 2024 93m away

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

  Granted Lawful development Extension Windows or glazing 23 docs

• 90 Cromwell Road, Hounslow, TW3 3QJ

  P/2026/2306 Submitted 7 Aug 2026 176m away

  76% historically approved · decision due ~2 Oct

  Erection of a single storey rear extension to the house

  Awaiting decision Householder Extension 9 docs
  Small domestic

• 10 INVERNESS ROAD, HOUNSLOW, TW3 3LS

  P/2021/1956 Submitted 18 May 2021 186m away

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

  Granted Householder Extension 9 docs
  Small domestic

• 10 INVERNESS ROAD, HOUNSLOW, TW3 3LS

  P/2021/1940 Submitted 17 May 2021 186m away

  Certificate of Lawfulness for the erection of a rear roof and outrigger extension with two front roof windows to the house

  Granted Lawful development Extension Windows or glazing 7 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