Great West House, 993 Great West Road, Brentford, TW8 9DF

1. 27 Nov 2025

   Received by Hounslow

2. 12 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

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

  P/2026/2219 Submitted 29 Jul 2026 0m away

  100% historically approved · decision due ~24 Sep

  Certificate of lawfulness for the installation of two electricity substations.

  Awaiting decision Lawful development 7 docs

• GW1 Great West House, 993 Great West Road, Brentford, W8 9DF

  P/2026/1763 Submitted 15 Jun 2026 0m away

  91% historically approved · decision due ~10 Aug

  Details submitted pursuant to Condition 15 (Foul water capacity) and Condition 16 (Surface water capacity for prior approval notification PAC/2024/1397 dated 15/08/2024 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 5 docs
  Major scheme

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

  P/2025/2551 Submitted 19 Aug 2025 0m away

  Non Material Amendment to amend the internal layout and unit mix for GW2, Great West House of planning permission PAC/2024/1398 approved 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

  Withdrawn Amendments 16 docs
  Major scheme

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

  P/2026/1654 Submitted 3 Jun 2026 0m away

  Details of Noise Assessment submitted pursuant to condition 14 of permission PAC/2024/1398 dated 15/08/26 for prior Approval notification for the change of use of the office floorspace (Class E) to residential floorspace (Class C3).

  Granted Conditions 6 docs

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

  P/2026/1653 Submitted 3 Jun 2026 0m away

  Details of noise survey submitted pursuant to condition 14 of permission PAC/2024/1397 dated 15/08/24 for prior Approval notification for the change of use of the office floorspace (Class E) to residential floorspace (Class C3).

  Granted Conditions 6 docs

• GW2 Great West House, 983 Great West Road, Brentford, TW8 9DF

  P/2025/2811 Submitted 18 Sep 2025 0m away

  Variation of condition 2 (approved plans) to allow internal layout changes of the prior approval notification PAC/2024/1398 approved 15/08/2024 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.

  Granted Amendments 21 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