148 Cardington Square, Hounslow, TW4 6AL

This site has had 2 applications since 2025: 1 approved, 1 refused.

• P/2025/3510 Granted

  148 Cardington Square, Hounslow, TW4 6AL

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

  Decided 20 Jan 2026 Lawful development

1. 11 Dec 2025

   Received by Hounslow

2. 6 Feb 2026

   Validated

   Checked as complete and ready for consideration.

3. 14 May 2026

   Decision issued: REFUSED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 148 Cardington Square, Hounslow, TW4 6AL

  P/2025/3510 Submitted 21 Nov 2025 50 yards away

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

  Granted Lawful development Extension Loft or dormer +1 8 docs

• 146 Cardington Square, Hounslow, TW4 6AL

  P/2024/3832 Submitted 16 Nov 2024 50 yards away

  Erection of a porch extension.

  Refused Householder Extension 8 docs
  Small domestic

• 146 Cardington Square, Hounslow, TW4 6AL

  P/2025/0227 Submitted 23 Jan 2025 50 yards away

  Erection of a front porch extension compromising of a cabin vehicle.

  Withdrawn Householder Extension 10 docs
  Small domestic

• 154 CARDINGTON SQUARE, HOUNSLOW, TW4 6AL

  PA/2023/1097 Submitted 5 Apr 2023 50 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

• FLAT GROUND FLOOR 18 HINTON AVENUE, HOUNSLOW, TW4 6AR

  P/2023/0685 Submitted 2 Mar 2023 50 yards away

  Formation of a vehicular access to the front of the house

  Withdrawn Householder 4 docs
  Domestic

• 24 HINTON AVENUE, HOUNSLOW, TW4 6AR

  PA/2023/0038 Submitted 4 Jan 2023 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.95 metres high to the eaves

  Withdrawn Prior approval Extension 6 docs

• P/2026/2304 Granted

  18 Clifden Road, Brentford, TW8 0PF

  Erection of a side and rear extensions.

  Received 7 Aug, published by the council 12 Aug 2026 Householder
• P/2026/2804 Awaiting decision

  128 Durham Road, Feltham, TW14 0AE

  Erection of a detached outbuilding in the rear garden following demolition of existing shed.

  Received 2 Oct, published by the council 9 Oct 2026 Householder
• P/2026/2301 Granted

  4 Glebe Street, Chiswick, W4 2BG

  Erection of a front side and rear side infill extensions with alterations to the rear elevation, a rear side first floor infill extension with replacement of windows to the rear elevation and installation of new rooflights to the existing ground floor infill extension of the house

  Received 7 Aug, published by the council 16 Aug 2026 Householder
• P/2026/1167 Granted

  20 Firs Drive, Hounslow, TW5 9TD

  Erection of part one, part two-storey side extension following demolition of existing garage and part one, part two-storey rear extension. Raising of roof ridge, erection of rear roof extensions, and installation of one front roof window.

  Received 15 Apr, published by the council 26 Jul 2026 Householder
• P/2026/2025 Granted

  1 Kneller Gardens, Isleworth, TW7 7NP

  Erection of a single storey rear and first floor side extension incorporating the conversion of the existing garage to a habitable room

  Received 8 Jul, published by the council 26 Jul 2026 Householder