GW1 Great West House, 983 Great West Road, Brentford, TW8 9DF

1. 8 Oct 2025

   Received by Hounslow

2. 11 Jun 2026

   Decision issued: APPROVED

3. 12 Aug 2026

   Added to PlanIndex

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.

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

• GW2, Great West House,Great West Road,Brentford,TW8 9DF

  P/2026/1342 Submitted 5 May 2026 1m away

  Non Material Amendment to amend the wording of the description of development following permission PAC/2024/1398 dated 15/08/2024 for Prior Approval notification for the change of use of the office floorspace (Class E) to provide 7,008sqm of residential floorspace (Class C3) to create 110 new units.

  Granted Amendments 3 docs
  Major scheme

• 983 Great West House, Gw1,Great West Road,Brentford,TW8 9DF

  P/2026/1340 Submitted 5 May 2026 1m away

  Non Material Amendment to amend the wording of the description of development of permission PAC/2024/1397 dated 15/08/2024 for Prior Approval notification for the change of use of the office floorspace (Class E) to provide 11,516sqm of residential floorspace (Class C3) to create 153 new units

  Granted Amendments 3 docs
  Major scheme

• 993, Great West House, Hounslow, Brentford, TW8 9DF

  P/2026/1971 Submitted 3 Jul 2026 1m away

  65% historically approved · decision due ~1 Oct

  Extension of the existing rooftop plant areas at the 12th and 18th floors of Great West House, including new terrace areas enclosed by glazed balustrades.

  Awaiting decision Full applications Extension Windows or glazing 6 docs

• GREAT WEST HOUSE,993 GREAT WEST ROAD,BRENTFORD,TW8 9DF

  P/2025/0777 Submitted 12 Mar 2025 1m away

  Installation of three external advertisements, one free-standing advertisement hoarding comprising two illuminated adverts and one illuminated advertisement hoarding on the existing office building

  Granted Advertising 7 docs

• GW2 GREAT WEST HOUSE, 983 GREAT WEST ROAD, BRENTFORD, TW8 9DF

  P/2026/1215 Submitted 20 Apr 2026 1m away

  91% historically approved · decision due ~15 Jun

  Details of condition 7 (Delivery and Servicing Plan ) and condition 8 (Travel Plan) submitted pursuant to planning permission PAC/2024/1398 dated 15/08/2024 for Prior Approval notification for the change of use of the building from office floorspace (Class E) to provide 7,008sqm of residential floorspace (Class C3) to create 110 new units

  Awaiting decision Conditions 8 docs
  Major scheme

• GW1 GREAT WEST HOUSE, 983 GREAT WEST ROAD, BRENTFORD, TW8 9DF

  P/2026/1217 Submitted 20 Apr 2026 1m away

  91% historically approved · decision due ~16 Jun

  Details of condition 7 (Delivery and Servicing Plan) and condition 8 (Travel Plan) submitted pursuant to planning permission PAC/2024/1397 dated 15/08/2024 for Prior Approval notification for the change of use of the office floorspace (Class E) to provide 11,516sqm of residential floorspace (Class C3) to create 153 new units

  Awaiting decision Conditions 10 docs
  Major scheme

• P/2026/2288 Refused

  Euro House, 54-66 High Street, Hounslow, TW3 1NW

  Non material amendment install an internal wall in 12 of the consented flats of permission P/2024/1935 approved 27/09/2024 for prior approval application for the change of use from Class E to Class C3 on the first – third floor to create 31 residential self-contained flats with associated refuse and cycle storage

  5 Aug 2026 Amendments
• P/2026/2442 Awaiting decision

  27 Cranford Lane, Hounslow, TW5 9EP

  Non material amendment to change the materials of condition 6a of application P/2026/0686 approved 19/03/2026 for the details of condition 4 Materials and condition 6a Sustainable Materials submitted pursuant to planning permission P/2024/4105 dated 24/03/2025 for erection of four, two/three storey residential dwellings with associated private amenity space, parking, landscaping, cycle and refuse storage following demolition of the existing building

  26 Aug 2026 Amendments
• P/2026/2158 Granted

  Building 3 Chiswick Park, 566 Chiswick High Road, Chiswick, London, W4 5YA

  Non material amendment to allow relocation of four external condenser units approximately 2 to 3 metres northwards within the existing roof plant zone, updates to the internal routing of the VRF refrigerant tray and the sub-mains LV ladder of planning permission P/2025/2431 dated 11/11/2025 for installation of plant equipment with associated power cabling and replacement of existing plant equipment at roof level

  23 Jul 2026 Amendments
• P/2026/1750 Granted

  Thames Works, Church Street, Chiswick, London, W4 2PD

  Non material amendment to allow the re-wording of condition 2 (approved plans) to update the approved plan list and to amendment the description of development to External alterations to the existing building including amendments to existing openings and associated works to elevations of planning permission P/2025/3155

  12 Jun 2026 Amendments
• P/2026/2297 Refused

  Euro House, 54-66 High Street, Hounslow, TW3 1NW

  Non material amendments to allow the removal of Condition 5 (Eastern Vehicular Access) of permission P/2024/1935 approved 27/09/2024 for the Prior approval for the change of use from Class E to Class C3 on the first to third floor to create 31 residential self contained flats with associated refuse and cycle storage

  6 Aug 2026 Amendments