P/2026/1774

1. 15 Jun 2026

   Received by Hounslow

2. 16 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2026

   Added to PlanIndex

4. 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• P/2026/1775 Withdrawn

  7 Hazledene Road, Chiswick, London, W4 3JB

  Erection of a single-storey rear and side wrap-around extension.

  15 Jun 2026 0m away Householder
• P/2025/1663 Withdrawn

  69 Sutton Lane South, Chiswick, London, W4 3JT

  T2 - Cherry Reduce by 3m in height and 1.25m laterally

  27 May 2025 77m away Trees
• P/2026/1755 Awaiting decision

  3 Fauconberg Road,Chiswick,W4 3JZ

  Certificate of lawfulness for the proposed erection of a single storey rear extension.

  15 Jun 2026 79m away Lawful development
• P/2026/2175 Awaiting decision

  3 Fauconberg Road, Chiswick, London, W4 3JZ

  (GS859834548) Erection of a single storey rear extension following the demolition of the existing and replacement of first floor rear Juliet balcony with a matching window.

  27 Jul 2026 79m away Householder
• P/2024/2690 Granted

  10 Burnaby Crescent, Chiswick, London, W4 3LH

  Certificate of lawfulness for the erection of a rear and side roof extension.

  7 Aug 2024 89m away Lawful development
• P/2024/3133 Refused

  68 Burnaby Gardens, Chiswick, London, W4 3DP

  Erection of a single storey rear and a first floor side extension, conversion of garage into a habitable room, installation of solar panels on the garage roof, alterations to fenestration including replacement of front and rear windows and doors, installation of roof lights, replacement of roof tiles, Erection of front canopy and boundary treatment.

  18 Sep 2024 125m away Householder

• 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