18 Cardington Square, Hounslow, TW4 6AH

This site has had 3 applications since 2026: 3 approved, 0 refused.

• P/2026/1410 Granted

  18 Cardington Square, Hounslow, TW4 6AH

  Erection of roof extension and a two storey side and single storey rear extension to the house. Following the demolition of the garage.

  Decided 20 Aug 2026 Householder
• P/2026/0695 Granted

  18 Cardington Square, Hounslow, TW4 6AH

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows.

  Decided 20 Apr 2026 Lawful development

1. 2 Mar 2026

   Received by Hounslow

2. 31 Mar 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 31 March 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.

• 18 Cardington Square, Hounslow, TW4 6AH

  P/2026/1410 Submitted 11 May 2026 50 yards away

  Erection of roof extension and a two storey side and single storey rear extension to the house. Following the demolition of the garage.

  Granted Householder Extension Demolition 16 docs
  Small domestic

• 18 Cardington Square, Hounslow, TW4 6AH

  P/2026/0695 Submitted 2 Mar 2026 50 yards away

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows.

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 16 Cardington Square, Hounslow, TW4 6AH

  P/2026/0692 Submitted 2 Mar 2026 50 yards away

  Certificate of lawfulness for proposed hip-to-gable conversion and rear roof extension with two front roof windows. Erection of outbuilding in rear garden for use as garden storage, office and gym.

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 16 Cardington Square, Hounslow, TW4 6AH

  PA/2026/0693 Submitted 2 Mar 2026 50 yards away

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

  Granted Prior approval Extension 8 docs

• 26 Cardington Square, Hounslow, TW4 6AH

  P/2024/3253 Submitted 28 Sep 2024 50 yards away

  Certificate of Lawfulness for the proposed erection of a rear roof extension with hip to gable conversion and front roof windows to the house.

  Granted Lawful development Extension Loft or dormer +1 8 docs

• 154 CARDINGTON SQUARE, HOUNSLOW, TW4 6AL

  PA/2023/1097 Submitted 5 Apr 2023 100 yards away

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

  Granted Prior approval Extension 6 docs

• 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