67 Roxborough Avenue, Isleworth, TW7 5HQ

1. 5 Feb 2026

   Received by Hounslow

2. 11 Mar 2026

   Decision issued: APPROVED

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.

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

• 851 - 853 Great West Road, Isleworth, TW7 5PD

  P/2026/2233 Submitted 30 Jul 2026 68m away

  76% historically approved · decision due ~15 Oct

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

  Awaiting decision Householder Extension 5 docs
  Small domestic

• 38 ROXBOROUGH AVENUE, ISLEWORTH, TW7 5HJ

  P/2021/2421 Submitted 15 Jun 2021 68m away

  Conversion of the garage into a habitable room of the house

  Granted Householder 6 docs
  Domestic

• 851-853 Great West Road, Isleworth, TW7 5PD

  P/2026/2034 Submitted 8 Jul 2026 80m away

  76% historically approved · decision due ~17 Sep

  Erection of a single storey rear extension

  Awaiting decision Householder Extension 5 docs
  Small domestic

• 851-853 Great West Road, Isleworth, TW7 5PD

  P/2026/1317 Submitted 30 Apr 2026 80m away

  Erection of a single storey rear extension and part first floor rear extension to 851-53 Great West Road. Erection of a first floor side extension to 851 Great West Road.

  Withdrawn Householder Extension 3 docs
  Small domestic

• 851-853 Great West Road Isleworth TW7 5PD

  PA/2026/1220 Submitted 20 Apr 2026 80m away

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

  Granted Prior approval Extension 6 docs

• 48 ALBURY AVENUE, ISLEWORTH, TW7 5HX

  P/2021/2135 Submitted 1 Jun 2021 91m away

  Certificate of Lawfulness for the erection of a hip to gable and rear roof extension with two front roof windows to the house

  Granted Lawful development Extension Loft or dormer +1 9 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