17 Grosvenor Road, Hounslow, TW3 3ER

1. 2 Feb 2026

   Received by Hounslow

2. 16 Mar 2026

   Decision issued: PRIOR APPROVAL DOES NOT COMPLY

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.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 17 Grosvenor Road, Hounslow, TW3 3ER

  PA/2026/1212 Submitted 20 Apr 2026 0m away

  Ground floor rear extension 6.00 metres deep, maximum height 3.60 metres, 3.60 metres high to the eaves.

  Refused Prior approval Extension 5 docs

• 17 Grosvenor Road, Hounslow, TW3 3ER

  P/2025/2683 Submitted 3 Sep 2025 0m away

  Erection of a rear roof extension with two front roof windows to the house.

  Withdrawn Householder Extension Windows or glazing 7 docs
  Domestic

• 17 Grosvenor Road, Hounslow, TW3 3ER

  P/2026/1385 Submitted 7 May 2026 0m away

  Certificate of lawfulness for the proposed erection of a detached single storey outbuilding to the rear of the house.

  Granted Lawful development 7 docs
  Small domestic

• 17 Grosvenor Road, Hounslow, TW3 3ER

  P/2026/0536 Submitted 13 Feb 2026 0m away

  Certificate of lawfulness proposed for the erection of rear roof and outrigger extension with two front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 10 docs

• 17 Grosvenor Road, Hounslow, TW3 3ER

  P/2026/0307 Submitted 2 Feb 2026 0m away

  Erection of a single storey side infill extension to the house

  Granted Householder Extension 7 docs
  Small domestic

• 17 Grosvenor Road, Hounslow, TW3 3ER

  P/2026/0654 Submitted 25 Feb 2026 0m away

  Certificate of lawfulness for the proposed erection of a detached single storey outbuilding to the rear of the house.

  Granted Lawful development 7 docs
  Small domestic

• PA/2026/2167 Granted

  2 Church Walk, Brentford, TW8 8DB

  Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.

  24 Jul 2026 Prior approval
• PA/2026/2475 Awaiting decision

  4 Upton Road, Hounslow, TW3 3HP

  GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2481 Awaiting decision

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2458 Awaiting decision

  82 Ringway, Southall, UB2 5SU

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.

  28 Aug 2026 Prior approval
• PA/2026/2461 Awaiting decision

  24 Kingston Avenue, Feltham, TW14 9SL

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 3.00 metres high to the eaves.

  28 Aug 2026 Prior approval