P/2026/2014

1. 7 Jul 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

• P/2023/0166 Withdrawn

  5 ESSEX AVENUE, ISLEWORTH, TW7 6LF

  Erection of first floor extension with rear loft dormer to roof space, front porch and replacement of existing rear extension, following the demolition of the existing single storey side extension and rear extension, conservatory and attached single storey garage - amended description

  17 Jan 2023 109m away Householder
• 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 121m 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 121m away Lawful development
• PA/2025/2949 Withdrawn

  32 Sussex Avenue, Isleworth, TW7 6LA

  Ground floor rear extension 5.00 metres deep, maximum height of 3.50 metres, 3.20 metres high to the eaves

  1 Oct 2025 156m away Prior approval
• P/2026/1714 Awaiting decision

  33 Worton Road, Isleworth, TW7 6HL

  Alterations to the existing roofs of the single storey side and rear extension.

  10 Jun 2026 181m away Householder
• 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 194m away Prior approval

• 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