174A Cromwell Road, Hounslow, TW3 3QS

1. 4 Nov 2024

   Received by Hounslow

2. 19 Dec 2024

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 2 Sep 2026

   Added to PlanIndex

Hounslow granted permission on 19 December 2024, 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.

• 241 Cromwell Road,Hounslow,TW3 3QT

  P/2024/3583 Submitted 24 Oct 2024 50 yards away

  Erection of a detached outbuilding in the rear garden to be used as a granny annexe.

  Refused Full applications 9 docs

• 237 Cromwell Road, Hounslow, TW3 3QT

  P/2025/2671 Submitted 3 Sep 2025 50 yards away

  Non Material Amendment to change the roofing material of the approved raised roof of permission P/2024/4173 dated 12/03/2025 for Erection of replacement roof with increase in height to the existing conservatory to allow conversion into sitting room to the house

  Granted Amendments Extension Roofing 6 docs

• 247 Cromwell Road, Hounslow, TW3 3QT

  P/2025/3322 Submitted 5 Nov 2025 50 yards away

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

  Granted Lawful development Extension Windows or glazing 4 docs
  Small domestic

• 156 Cromwell Road, Hounslow, TW3 3QS

  P/2026/2698 Submitted 23 Sep 2026 100 yards away

  100% historically approved · decision due ~18 Nov

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

  Awaiting decision Lawful development Extension Loft or dormer +1 4 docs

• 406 Hanworth Road, Hounslow, TW3 3SN

  P/2026/1888 Submitted 25 Jun 2026 100 yards away

  Erection of a first floor part rear extension to allow the conversion of the house into two self contained flats, and installation of solar panels to the front roof, with associated landscaping, bin and bike stores.

  Refused Full applications New dwelling Extension 14 docs

• 207 CROMWELL ROAD, HOUNSLOW, TW3 3QW

  PA/2023/0830 Submitted 14 Mar 2023 100 yards away

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

  Granted Prior approval Extension 9 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