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Planning application

P/2021/2811

40 ST CHRISTOPHERS CLOSE, ISLEWORTH, TW7 4NP

Granted Hounslow Lawful Use Certificate

Proposal

Certificate of Lawfulness for the proposed erection of a single storey rear extension to the house

As published by the council, reference P/2021/2811

Timeline

Dates from the published record

  1. 12 Jul 2021

    Received by Hounslow

  2. 9 Aug 2021

    Decision issued: GRANTED (FULL PLANNING PERMISSION NOT REQUIRED)

  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/2026/2010 Awaiting decision

    Granwood Court, 20 The Grove, Isleworth, TW7 4JX

    Variation of Condition 2 (Approved Plans) to remove the PVC cladding panels on the existing elevations to render and changes to the windows within the third floor following planning permission P/2022/3520 approved 14/04/2023 erection of a third floor roof extension incorporating five self-contained flats with associated refuse and cycle parking provision.

    7 Jul 2026 90m away Conditions
  • P/2026/2078 Awaiting decision

    Granwood Court, 20 The Grove, Isleworth, TW7 4JX

    Variation of condition 7 (landscape) to improve the safety of the site and access of planning permission 00523/20/P1 (P/2022/3520) approved 14/04/2023 for the erection of a third floor roof extension incorporating five self contained flats with associated refuse and cycle parking provision

    16 Jul 2026 90m away Conditions
  • P/2021/1519 Granted

    82 THORNBURY ROAD, ISLEWORTH, TW7 4LN

    Erection of a single storey rear infill extension to the house and one chimney to be reinstated (amended plans and description)

    19 Apr 2021 141m away Householder
  • P/2023/0375 Granted

    35 THE GROVE, ISLEWORTH, TW7 4JT

    Works to a tree within a conservation area - Eucalyptus tree to fell and planting of replacement trees

    6 Feb 2023 146m away Trees
  • P/2021/2975 Granted

    80 THORNBURY ROAD, ISLEWORTH, TW7 4LN

    Works to Sycamore tree in the rear garden: Crown reduction by one-third to previous reduction points

    21 Jul 2021 149m away Trees
  • P/2025/2392 Withdrawn

    89 Thornbury Road, Isleworth, TW7 4NL

    Formation of vehicular access, front boundary wall and new rear boundary fence to the house.

    4 Aug 2025 157m 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