27 Parkwood Road, Isleworth, TW7 5HE

1. 11 May 2026

   Received by Hounslow

2. 12 Jun 2026

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 12 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 27 Parkwood Road, Isleworth, TW7 5HE

  P/2026/1697 Submitted 8 Jun 2026 0m away

  Erection of a single storey rear and a single storey side extension

  Withdrawn Householder Extension 4 docs
  Small domestic

• 27 Parkwood Road, Isleworth, TW7 5HE

  P/2026/1891 Submitted 25 Jun 2026 0m away

  Certificate of lawfulness for the proposed erection of a rear roof extension with a hip to gable conversion, two front roof lights and a detached outbuilding at the rear garden.

  Granted Lawful development Extension Loft or dormer 7 docs

• 58 Parkwood Road, Isleworth, TW7 5HD

  P/2026/0103 Submitted 13 Jan 2026 38m away

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

  Granted Lawful development Extension Loft or dormer +1 6 docs

• 58 Parkwood Road, Isleworth, TW7 5HD

  P/2026/0104 Submitted 13 Jan 2026 38m away

  Erection of a single storey rear extension, part two storey side and rear extensions. Conversion of the existing garage to a habitable space and installation of a new window on the rear elevation.

  Refused Householder Extension Windows or glazing 9 docs
  Small domestic

• 23 Downs View, Isleworth, TW7 5HF

  P/2024/3516 Submitted 22 Oct 2024 42m away

  Certificate of lawfulness 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 7 docs

• 23 Downs View, Isleworth, TW7 5HF

  P/2025/2500 Submitted 12 Aug 2025 42m away

  Erection of a single storey ground floor side extension and part rear infill extension to the house. Following the demolition of the garage.

  Withdrawn Householder Extension Demolition 6 docs
  Small domestic

• PA/2026/2167 Granted

  2 Church Walk, Brentford, TW8 8DB

  Ground floor rear extension 4.50 metres deep, maximum height 4.00 metres, 3.00 metres high to the eaves.

  24 Jul 2026 Prior approval
• PA/2026/2475 Awaiting decision

  4 Upton Road, Hounslow, TW3 3HP

  GS868133219 - Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 3.00 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2481 Awaiting decision

  6 Speart Lane, Hounslow, TW5 9EF

  Ground floor rear extension 8.00 metres deep, maximum height of 3.00 metres, 2.80 metres high to the eaves

  1 Sep 2026 Prior approval
• PA/2026/2458 Awaiting decision

  82 Ringway, Southall, UB2 5SU

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

  28 Aug 2026 Prior approval
• PA/2026/2461 Awaiting decision

  24 Kingston Avenue, Feltham, TW14 9SL

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

  28 Aug 2026 Prior approval