12 Consort Mews, Isleworth, TW7 7NA

1. 19 Aug 2026

   Received by Hounslow

2. 25 Aug 2026

   Validated

   Checked as complete and ready for consideration.

3. 2 Sep 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 20 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 CONSORT MEWS, ISLEWORTH, TW7 7NA

  P/2023/0236 Submitted 25 Jan 2023 0m away

  Erection of a part two storey, part single storey side extension to the house

  Granted Householder Extension 15 docs
  Small domestic

• 13 Yeomans Mews, Isleworth, TW7 7LZ

  P/2025/2548 Submitted 19 Aug 2025 61m away

  Certificate of lawfulness for the proposed erection of a single storey rear extension to the house.

  Granted Lawful development Extension 6 docs
  Small domestic

• 212 WHITTON DENE, ISLEWORTH, TW7 7LU

  P/2021/2457 Submitted 17 Jun 2021 68m away

  Erection of a first floor side extension and a single storey rear extension.

  Granted Householder Extension 4 docs
  Small domestic

• 43 Arnold Crescent, Isleworth, TW7 7NS

  P/2026/1123 Submitted 10 Apr 2026 89m away

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

  Granted Lawful development Loft or dormer Windows or glazing 7 docs

• 43 Arnold Crescent, Isleworth, TW7 7NS

  P/2026/1122 Submitted 10 Apr 2026 89m away

  Erection of a front porch extension to the house.

  Granted Householder Extension 6 docs
  Small domestic

• 393 Whitton Dene, Isleworth, TW7 7NF

  P/2026/0943 Submitted 22 Mar 2026 93m away

  Erection of a detached garage in the rear garden.

  Refused Householder 7 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