12 Legrace Avenue, Hounslow, TW4 7RS

1. 28 Aug 2026

   Received by Hounslow

2. 5 Sep 2026

   Added to PlanIndex

3. 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 55 days over the applications it decided in the last year.

This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 12 Legrace Avenue, Hounslow, TW4 7RS

  P/2026/0887 Submitted 17 Mar 2026 0m 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 0m 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 0m 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 64m 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 69m 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 103m away

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

  Granted Householder Extension 11 docs
  Domestic

• P/2026/2047 Granted

  9 Borough Road, Isleworth, TW7 5DY

  Erection of a single storey rear extension.

  10 Jul 2026 Householder
• P/2026/1858 Granted

  8 CONNAUGHT AVENUE, HOUNSLOW, TW4 5BW

  Erection of single storey front extension to the outbuilding for used as storage, office and a Gym. Following part demolition of the outbuilding.

  23 Jun 2026 Householder
• P/2026/2503 Awaiting decision

  25 Arnold Crescent, Isleworth, TW7 7NS

  Erection of a single storey rear, two storey side extension, and rear roof extension with two front roof windows to the house.

  3 Sep 2026 Householder
• P/2026/1522 Granted

  4 Camborne Way, Hounslow, TW5 0PW

  Erection of a single storey rear extension and reduction in width of the existing side and rear extension.

  20 May 2026 Householder
• P/2026/2024 Granted

  20 Hartland Road, Isleworth, TW7 6RH

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

  8 Jul 2026 Householder