12 Legrace Avenue, Hounslow, TW4 7RS

This site has had 4 applications since 2025: 2 approved, 1 refused.

• P/2026/0887 Refused

  12 Legrace Avenue, Hounslow, TW4 7RS

  Erection of a two-storey side and part first, part single storey rear extension. Erection of a rear roof extension with hip to gable conversion and a Juliet balcony, four front roof windows, and a front porch to the house.

  Decided 23 Jun 2026 Householder
• PA/2025/3789 Granted

  12 Legrace Avenue, Hounslow, TW4 7RS

  Ground floor rear extension 6.00 metres deep, maximum height of 3.50 metres, 2.70 metres high to the eaves

  Decided 29 Jan 2026 Prior approval
• P/2025/3790 Granted

  12 Legrace Avenue, Hounslow, TW4 7RS

  Certificate of lawfulness proposed for the erection of a hip to gable and rear roof extension with three front roof windows and Juliette balcony, a front porch and a single storey detached outbuilding in the rear garden of the house

  Decided 7 May 2026 Lawful development

1. 28 Aug 2026

   Received by Hounslow

2. 5 Sep 2026

   Added to PlanIndex

3. 10 Sep 2026

   Status changed to REGISTERED: Under Consultation

   Previously REGISTERED: Valid.

4. 27 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

5. Decision

   Awaiting decision

   Decision expected by 23 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided householder applications in a median of 63 days. More in our guide to how long planning decisions take.

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.

• 12 Legrace Avenue, Hounslow, TW4 7RS

  P/2026/0887 Submitted 17 Mar 2026 50 yards away

  Erection of a two-storey side and part first, part single storey rear extension. Erection of a rear roof extension with hip to gable conversion and a Juliet balcony, four front roof windows, and a front porch to the house.

  Refused Householder Extension Loft or dormer +1 6 docs
  Small domestic

• 12 Legrace Avenue, Hounslow, TW4 7RS

  PA/2025/3789 Submitted 22 Dec 2025 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.50 metres, 2.70 metres high to the eaves

  Granted Prior approval Extension 5 docs

• 12 Legrace Avenue, Hounslow, TW4 7RS

  P/2025/3790 Submitted 22 Dec 2025 50 yards away

  Certificate of lawfulness proposed for the erection of a hip to gable and rear roof extension with three front roof windows and Juliette balcony, a front porch and a single storey detached outbuilding in the rear garden of the house

  Granted Lawful development Extension Loft or dormer +1 5 docs
  Small domestic

• 18 BASILDENE ROAD, HOUNSLOW, TW4 7LE

  PA/2021/2770 Submitted 7 Jul 2021 50 yards away

  Ground floor rear extension 6.00 metres deep, maximum height of 3.20 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 4 docs

• 100 LELA AVENUE, HOUNSLOW, TW4 7RY

  PA/2021/3167 Submitted 3 Aug 2021 100 yards away

  Ground floor rear extension 6 metres deep, maximum height of 3 metres, 2.8 metres high to the eaves

  Granted Prior approval Extension 6 docs

• 18 Kevin Close, Hounslow, TW4 7RX

  P/2024/3070 Submitted 13 Sep 2024 100 yards away

  Proposal for the erection of a two-storey side and part two-storey rear extension.

  Granted Householder Extension 11 docs
  Domestic

• 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