155 Chiswick High Road, Chiswick, London, W4 2DT

1. 27 Aug 2026

   Received by Hounslow

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 22 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 55 days over the applications it decided in the last year.

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.

This type of application deals with conditions attached to an existing permission, either by supplying the details a condition requires, called discharging it, or by asking to vary or remove one. It does not reopen the principle of the permission itself. Building often cannot lawfully start, or continue past a set stage, until the named conditions are discharged.

More on conditions applications in our guide

• 155 Chiswick High Road, Chiswick, London, W4 2DT

  P/2026/1944 Submitted 1 Jul 2026 0m away

  Non material amendment to allow the revision of the internal dimensions of the plant room and bike store at ground floor level of planning permission P/2024/2338 approved 17/01/2025 for the Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows

  Granted Amendments New dwelling Extension +1 4 docs

• 155 Chiswick High Road,London,W4 2DT

  P/2026/0637 Submitted 24 Feb 2026 2m away

  Non material amendment to incorporate relocation of plant room and creation of a new access door, detailing to the East Elevation, rooflights size adjustments and reconstruction of chimneys following permission P/2024/2338 dated 17/01/2025 for Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows.

  Granted Amendments New dwelling Extension +2 8 docs

• 155 Chiswick High Road,Chiswick,W4 2DT

  P/2026/1146 Submitted 14 Apr 2026 2m away

  Details of Construction Logistics Plan submitted pursuant to condition 7 of planning permission P/2024/2338 dated 17/01/2025 for Conversion of the existing unit on the ground floor into two commercial units incorporating the conversion of the rear garage to commercial space. Erection of a two storey rear extension to facilitate the change of use of the existing commercial unit on the first and second floor into three self contained flats. Installation of one front and one side roof window, solar panels on the roof and side elevation windows.

  Granted Conditions New dwelling Extension +1 9 docs

• 157 Chiswick High Road, Chiswick, London, W4 2DT

  P/2026/2256 Submitted 4 Aug 2026 5m away

  77% historically approved · decision due ~15 Oct

  Replacing the existing external fascia sign and projecting sign.

  Awaiting decision Advertising 13 docs

• 157 Chiswick High Road, Chiswick, London, W4 2DT

  P/2026/2263 Submitted 4 Aug 2026 5m away

  65% historically approved · decision due ~15 Oct

  Alterations to the existing shopfront to allow the change of use from a retail unit (Class E) to a nail and beauty salon.

  Awaiting decision Full applications Windows or glazing 8 docs

• 2 Devonshire Road, Chiswick, W4 2HD

  PAC/2024/3366 Submitted 27 Sep 2024 28m away

  Prior approval for the change use use of the upper floors into one self contained residential unit with ancillary works while retaining existing ground floor use

  Granted Outline 9 docs

• P/2026/2010 Granted

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

  Variation of Condition 2 (Approved Plans) to remove the PVC cladding panels on the existing elevations and replace with 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 Conditions
• P/2026/0078 Granted

  Buildings 29-37,MOD Feltham Site,Elmwood Avenue,Feltham,Middlesex,TW13 7AH

  Details submitted pursuant to Condition 5 (Construction Logistics Management Plan), Condition 16 (Watching Brief), Condition 17 (Invasive Species), Condition 19 (Biodiversity Net Gain), Condition 28 (Remediation Strategy), and Condition 32 (Bird Hazard Management Plan) of permission P/2024/0622 dated 31/10/2025 for Formation of a new school, erection of three new school buildings with main access from Browell's Lane, installation of a multi use games area, playing pitch, parking, landscaping and associated infrastructure following the demolition of the former MOD buildings.

  12 Jan 2026 Conditions
• P/2026/1558 Granted

  74 Dukes Avenue, Chiswick, London, W4 2AF

  Variation of condition 2 (approved plans) to allow the reduction in size of the outbuilding and the garden storage moved of planning permission P/2024/3412 approved 20/12/2024 for the erection of a single storey detached out building for use as paint studio in the rear garden

  22 May 2026 Conditions
• P/2026/2464 Awaiting decision

  Rivers Academy Tachbrook Road, Feltham, TW14 9PE

  Details of Condition 12 (School Access Strategy) submitted pursuant to permission P/2025/1059 dated 15/08/2025 for Erection of a three storey temporary school building and provision of temporary playing pitches on the school sports field.

  28 Aug 2026 Conditions
• P/2026/2447 Awaiting decision

  68 Parkwood Road, Isleworth, TW7 5HD

  Removal of Condition 4 (construction method Statement) to planning permission P/2026/0918 approved 03/07/2026 for the erection of a two storey side and two storey rear extension to create a lower ground floor incorporating the creation of rear decking at ground floor and lower ground floor and a new front porch

  26 Aug 2026 Conditions