158 Ash Grove, Hounslow, TW5 9DS

1. 14 Apr 2026

   Received by Hounslow

2. 16 Apr 2026

   Decision issued: NMA 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

• 158 Ash Grove, Hounslow, TW5 9DS

  P/2024/3693 Submitted 6 Nov 2024 0m away

  Details of Condition 3 (Materials) submitted pursuant to planning permission 00048/154-158/P1 (P/2023/0440) dated 14/07/2023 for Erection of two pairs of semi-detached houses and a pair of semi-detached bungalows following demolition of the two storey side extension and outbuilding to 158 Ash Grove and demolition of garage to 156 Ash Grove, with associated amenity, car parking and cycle and bin stores.

  Granted Conditions Extension Demolition 5 docs

• 158F Ash Grove, Hounslow, TW5 9DS

  P/2025/2526 Submitted 15 Aug 2025 36m away

  Erection of a rear roof extension and one front rooflight to the house.

  Granted Householder Extension Loft or dormer 11 docs
  Domestic

• 158E Ash Grove, Hounslow, TW5 9DS

  P/2025/2525 Submitted 15 Aug 2025 39m away

  Erection of a rear roof extension and one front rooflight to the house.

  Granted Householder Extension Loft or dormer 11 docs
  Domestic

• 158D Ash Grove, Hounslow, TW5 9DS

  P/2025/2524 Submitted 15 Aug 2025 40m away

  Erection of a rear roof extension and two front rooflights to the house.

  Granted Householder Extension Loft or dormer 11 docs
  Domestic

• 158C Ash Grove, Hounslow, TW5 9DS

  P/2025/2523 Submitted 15 Aug 2025 43m away

  Erection of a rear roof extension and two front rooflights to the house.

  Granted Householder Extension Loft or dormer 9 docs
  Domestic

• 158B Ash Grove, Hounslow, TW5 9DS

  P/2025/2522 Submitted 15 Aug 2025 45m away

  Erection of a rear roof extension and two front rooflights to the house.

  Granted Householder Extension Loft or dormer 10 docs
  Domestic

• 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