P/2026/1657

1. 4 Jun 2026

   Received by Hounslow

2. 26 Jul 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.

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

• PA/2023/0697 Granted

  17 WOODLAND GARDENS, ISLEWORTH, TW7 6LN

  Ground floor rear extension 3.65 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves

  3 Mar 2023 50m away Prior approval
• P/2026/1768 Withdrawn

  94 Woodlands Road, Isleworth, TW7 6JY

  Certificate

  15 Jun 2026 91m away Lawful development
• P/2026/1796 Awaiting decision

  94 Woodlands Road, Isleworth, TW7 6JY

  Certificate of lawfulness for the existing erection of a rear roof extension

  16 Jun 2026 91m away Lawful development
• P/2021/2635 Granted

  69 WOODLAND GARDENS, ISLEWORTH, TW7 6LW

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

  28 Jun 2021 117m away Lawful development
• PA/2023/0305 Granted

  156 WOODLAND GARDENS, ISLEWORTH, TW7 6LR

  Ground floor rear extension 4 metres deep, maximum height of 3 metres, 3 metres high to the eaves

  31 Jan 2023 181m away Prior approval
• P/2023/0301 Granted

  156 WOODLAND GARDENS, ISLEWORTH, TW7 6LR

  Certificate of lawfulness for erection of single storey rear & side extension with rear door alterations. Erection of a rear roof extension with hip to gable conversion and front roof windows including a vehicular access to the front of the house.

  31 Jan 2023 181m away Lawful development

• 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