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Planning application

P/2024/3253

26 Cardington Square, Hounslow, TW4 6AH

Granted Hounslow Lawful Development Certificate (Proposed)

Proposal

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

As published by the council, reference P/2024/3253

Timeline

Dates from the published record

  1. 28 Sep 2024

    Received by Hounslow

  2. 20 Nov 2024

    Decision issued: GRANT

  3. 3 Aug 2026

    Added to PlanIndex

What a grant of permission means

The process from here

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.

About lawful development applications

How this application type works

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

Nearby applications

Within 500 metres

  • P/2026/1410 Awaiting decision

    18 Cardington Square, Hounslow, TW4 6AH

    Erection of rear roof extension with two front roof windows, and a two storey side and single storey rear extension to the house. Following the demolition of the garage.

    11 May 2026 33m away Householder
  • P/2021/2604 Granted

    17 LAUREL GARDENS, HOUNSLOW, TW4 6AQ

    Certificate of Lawfulness for proposed erection of a rear roof extension incorporating two front roof windows and one roof window to the roof of the proposed extension to the house

    25 Jun 2021 116m away Lawful development
  • PA/2026/2162 Awaiting decision

    50 Corporation Avenue, Hounslow, TW4 6AZ

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

    24 Jul 2026 129m away Prior approval
  • P/2021/2035 Refused

    46 CORPORATION AVENUE, HOUNSLOW, TW4 6AZ

    Erection of detached single storey outbuilding to the rear of the house

    24 May 2021 140m away Householder
  • P/2025/0227 Withdrawn

    146 Cardington Square, Hounslow, TW4 6AL

    Erection of a front porch extension compromising of a cabin vehicle.

    23 Jan 2025 146m away Householder
  • P/2024/2857 Refused

    53 Barrack Road, Hounslow, TW4 6AN

    Erection of a single storey rear extension to the house.

    27 Aug 2024 168m away Householder

In Hounslow

  • P/2026/2219 Awaiting decision

    Great West House,993 Great West Road,Brentford,TW8 9DF

    Certificate of lawfulness for the installation of two electricity substations.

    29 Jul 2026 Lawful development
  • P/2026/1626 Granted

    2 Oak Avenue, Hounslow, TW5 9EB

    Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and the addition of one front roof light.

    2 Jun 2026 Lawful development
  • P/2026/2168 Awaiting decision

    49 Durham Road, Feltham, TW14 0AG

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

    24 Jul 2026 Lawful development
  • P/2026/1448 Granted

    13 Orchard Avenue, Hounslow, TW5 0DU

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

    13 May 2026 Lawful development
  • P/2026/1682 Granted

    133 Swan Road, Feltham, TW13 6LT

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

    5 Jun 2026 Lawful development