44 Balfern Grove, Chiswick, London, W4 2JX

1. 27 Apr 2026

   Received by Hounslow

2. 8 Jun 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 8 June 2026, 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.

• 42 BALFERN GROVE, CHISWICK, LONDON, W4 2JX

  P/2021/1668 Submitted 29 Apr 2021 50 yards away

  Certificate of Lawfulness for the erection of a rear outrigger roof extension.

  Granted Lawful development Extension 6 docs

• 42 BALFERN GROVE, CHISWICK, LONDON, W4 2JX

  P/2021/1667 Submitted 29 Apr 2021 50 yards away

  Erection of a single storey rear infill extension to the house.

  Granted Householder Extension 8 docs
  Small domestic

• 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

• 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

• 19 Ashbourne Grove, Chiswick, London, W4 2JH

  P/2026/1408 Submitted 11 May 2026 50 yards away

  Erection of a rear roof and outrigger extension with three front roof windows to the house.

  Refused Householder Extension Windows or glazing 7 docs
  Domestic

• 19 Ashbourne Grove, Chiswick, London, W4 2JH

  P/2026/1386 Submitted 7 May 2026 50 yards away

  Erection of a single-storey rear and infill extension.

  Granted Householder Extension 7 docs
  Small domestic

• PA/2026/2437 Refused

  17 Orchard Road, Brentford, TW8 0QX

  Ground floor rear extension 5.51 metres deep, maximum height of 2.80 metres, 2.06 metres high to the eaves

  Received 26 Aug, published by the council 2 Sep 2026 Prior approval
• PA/2026/2481 Refused

  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

  Received 1 Sep, published by the council 5 Sep 2026 Prior approval
• PA/2026/2768 Awaiting decision

  86 Kneller Gardens, Isleworth, TW7 7NW

  Ground floor rear extension 4.50 metres, maximum height 3.20 metres, 2.70 metres high to the eaves.

  Received 30 Sep, published by the council 6 Oct 2026 Prior approval
• PA/2026/2393 Granted

  2 Letchworth Avenue, Feltham, TW14 9RY

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.85 metres high to the eaves

  Received 18 Aug, published by the council 23 Aug 2026 Prior approval
• PA/2026/2364 Granted

  9 Westbourne Road, Feltham, TW13 4LX

  Ground floor rear extension 4.5 metres deep, maximum height of 2.8 metres, 2.8 metres high to the eaves

  Received 13 Aug, published by the council 23 Aug 2026 Prior approval