PA/2021/2645

1. 28 Jun 2021

   Received by Hounslow

2. 22 Jul 2021

   Decision issued: PRIOR APPROVAL IS NOT REQUIRED

3. 26 Jul 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

• P/2026/1518 Granted

  18 Osterley Avenue, Isleworth, TW7 4QF

  Erection of single storey and a part first floor rear extension to the house and erection of single storey detached outbuilding to be used as a gym in the rear garden.

  20 May 2026 48m away Householder
• P/2025/0538 Awaiting decision

  171 Thornbury Road, Isleworth, TW7 4QG

  Alterations to the existing ground floor commercial unit including replacement of the shopfront, addition of a new entrance door, Installation of a rear lightwell and extension of the rear terrace area with associated external changes to the side and rear elevations.

  20 Feb 2025 120m away Full applications
• P/2026/1617 Granted

  209 Jersey Road, Isleworth, TW7 4RE

  Works to trees in a conservation area. Pear (A). Dead. Fell to ground level Cherry (B) Dying. Fell to ground level

  1 Jun 2026 179m away Trees
• P/2023/0164 Refused

  31 THORNBURY AVENUE, ISLEWORTH, TW7 4NF

  Retrospective application for the erection of a single storey side and part rear extension, roof extension with rear and side dormers and roof windows; changes to front boundary wall, rendering of external walls and replacement windows and doors.

  17 Jan 2023 181m away Householder
• P/2026/1561 Awaiting decision

  131 Thornbury Road, Isleworth, TW7 4ND

  Certificate of lawfulness for the proposed erection of a detached outbuilding in the rear garden.

  26 May 2026 200m away Lawful development
• P/2026/1843 Awaiting decision

  2 Thornbury Avenue, Isleworth, TW7 4NQ

  Enlargement of rear and side roof extensions to the house.

  22 Jun 2026 203m away Householder

• PA/2026/2235 Awaiting decision

  209 Hatton Road, Feltham, TW14 9QY

  Ground floor rear extension 5.00 metres deep, maximum height 3.60 metres, 3.00 metres high to the eaves.

  31 Jul 2026 Prior approval
• PA/2026/2232 Awaiting decision

  9 Wareham Close, Hounslow, TW3 3PX

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.80 metres high to the eaves.

  31 Jul 2026 Prior approval
• PA/2026/2187 Awaiting decision

  205 Brabazon Road, Hounslow, TW5 9LW

  Ground floor rear extension 6.00 metres deep, maximum height of 3.40 metres, 2.90 metres high to the eaves

  28 Jul 2026 Prior approval
• PA/2026/2172 Awaiting decision

  65 Mornington Crescent, Hounslow, TW5 9ST

  Ground floor rear extension 6.00 metres deep, maximum height of 3.00 metres, 2.85 metres high to the eaves

  27 Jul 2026 Prior approval
• PA/2026/1749 Refused

  25 Grosvenor Road, Hounslow, TW3 3ER

  Ground floor rear extension 6.00 metres deep, maximum height 3.00 metres, 2.90 metres high to the eaves.

  12 Jun 2026 Prior approval