20 Parkwood Road, Isleworth, TW7 5HA

1. 26 Aug 2026

   Received by Hounslow

2. 2 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 21 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

• 20 Parkwood Road, Isleworth, TW7 5HA

  P/2025/3768 Submitted 19 Dec 2025 0m away

  Retrospective application for the erection of a single storey rear infill extension and the installation of a window to the front elevation.

  Refused Householder Extension Windows or glazing 7 docs
  Small domestic

• 22 Parkwood Road, Isleworth, TW7 5HA

  P/2025/2749 Submitted 11 Sep 2025 11m away

  Erection of a single storey rear extension and existing garage partial conversion into habitable space.

  Granted Householder Extension 22 docs
  Small domestic

• 1 Parkwood Road, Isleworth, TW7 5HE

  P/2026/0769 Submitted 6 Mar 2026 42m away

  Erection of a single-storey rear and side extension.

  Granted Householder Extension 15 docs
  Small domestic

• 1 Parkwood Road, Isleworth, TW7 5HE

  P/2026/0699 Submitted 2 Mar 2026 42m away

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

  Granted Lawful development Extension Windows or glazing 10 docs

• 6 Harewood Road, Isleworth, TW7 5HB

  P/2026/0159 Submitted 19 Jan 2026 48m away

  Certificate of lawfulness for the proposed use of the house (Use Class C3(a)) to a single household living together and receiving care (Use Class C3(b))

  Granted Lawful development 7 docs

• 6 Harewood Road, Isleworth, TW7 5HB

  P/2025/2860 Submitted 23 Sep 2025 48m away

  Certificate of lawfulness for the proposed use of the house (Use Class C3(a)) as a Children's Care Home (Use Class C2).

  Granted Lawful development 8 docs

• 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