25 BALFERN GROVE, CHISWICK, W4 2JX

1. 3 Apr 2023

   Received by Hounslow

2. 12 May 2023

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 17 Sep 2026

   Added to PlanIndex

Hounslow granted permission on 12 May 2023, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• FLAT FIRST FLOOR 33 BALFERN GROVE, CHISWICK, W4 2JX

  P/2019/3915 Submitted 29 Oct 2019 50 yards away

  Certificate of Lawfulness for erection of a rear roof extension to outrigger of first floor flat

  Refused Lawful development Extension 8 docs

• 24 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0330 Submitted 3 Feb 2026 50 yards away

  Certificate of lawfulness for the proposed outrigger roof extension to the house

  Granted Lawful development Extension 11 docs

• 17 Cornwall Grove, Chiswick, London, W4 2LB

  P/2026/0026 Submitted 7 Jan 2026 50 yards away

  Erection of a single storey rear and infill extension following the demolition of the existing rear and infill extension to the house

  Granted Householder Extension Demolition 10 docs
  Small domestic

• 39 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0083 Submitted 12 Jan 2026 50 yards away

  Certificate of lawfulness proposed erection of a rear roof and outrigger extension, including a Juliet balcony and three front roof windows to the house.

  Granted Lawful development Extension Windows or glazing 7 docs

• 43 Balfern Grove, Chiswick, London, W4 2JX

  P/2026/0206 Submitted 22 Jan 2026 50 yards away

  Erection of a single storey side infill extension and two new front roof windows to the house.

  Granted Householder Extension Windows or glazing 10 docs
  Small domestic

• 44 Balfern Grove, Chiswick, London, W4 2JX

  PA/2026/1274 Submitted 27 Apr 2026 50 yards away

  Ground floor rear extension 1 metre deep, maximum height 2.8 metres. Single Storey side extension 6 metres deep, maximum height 3.1 metres, 2.67 metres high to the eaves.

  Granted Prior approval Extension 15 docs
  Small domestic

• PA/2026/2611 Awaiting decision

  72 Crosslands Avenue, Southall, UB2 5RA

  Ground floor rear extension 6 metres deep, maximum height of 3 metres, 3 metres high to the eaves

  Received 14 Sep, published by the council 17 Sep 2026 Prior approval
• PA/2026/2246 Granted

  72 Kneller Gardens, Isleworth, TW7 7NW

  Ground floor rear extension 6.00 metres deep, maximum height of 2.90 metres, 2.90 metres high to the eaves

  Received 3 Aug, published by the council 5 Aug 2026 Prior approval
• PA/2026/2565 Awaiting decision

  31 Spencer Road, Isleworth, TW7 4BN

  Ground floor rear extension 4.00 metres deep, maximum height 3.60 metres, 3.00 metres high to the eaves.

  Received 9 Sep, published by the council 17 Sep 2026 Prior approval
• PA/2026/2551 Awaiting decision

  98 Bulstrode Avenue, Hounslow, TW3 3AG

  Ground floor rear extension 5.00 metres deep, maximum height 2.95 metres, 2.95 metres high to the eaves.

  Received 8 Sep, published by the council 10 Sep 2026 Prior approval
• PA/2026/2550 Awaiting decision

  63 Beavers Crescent, Hounslow, TW4 6EU

  Ground floor rear extension 5.00 metres deep, maximum height 3.51 metres, 3.00 metres high to the eaves.

  Received 8 Sep, published by the council 10 Sep 2026 Prior approval