45 College Road, Isleworth, TW7 5DL

1. 6 Jan 2026

   Received by Hounslow

2. 3 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

• 41 College Road, Isleworth, TW7 5DL

  P/2025/3309 Submitted 4 Nov 2025 15m away

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

  Granted Lawful development Extension Loft or dormer +1 9 docs

• 28 COLLEGE ROAD, ISLEWORTH, TW7 5DW

  P/2021/1962 Submitted 18 May 2021 37m away

  Erection of a single storey rear extension and a side roof dormer with a front and sde roof window to the house

  Refused Householder Extension Loft or dormer +1 20 docs
  Small domestic

• 42 College Road, Isleworth, TW7 5DW

  P/2026/2456 Submitted 27 Aug 2026 49m away

  100% historically approved · decision due ~22 Oct

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

  Awaiting decision Lawful development Extension 8 docs
  Small domestic

• 42 College Road, Isleworth, TW7 5DW

  P/2026/0773 Submitted 6 Mar 2026 49m away

  Erection of a single storey rear and side infill extension to the house

  Granted Householder Extension 12 docs
  Small domestic

• 42 COLLEGE ROAD, ISLEWORTH, TW7 5DW

  P/2021/2330 Submitted 9 Jun 2021 49m away

  Erection of a rear roof extension with juliet balcony and two front roof windows.

  Granted Householder Extension Windows or glazing 10 docs
  Domestic

• 71 College Road, Isleworth, TW7 5DP

  P/2026/0261 Submitted 28 Jan 2026 60m away

  Erection of a first floor upwards extension, single storey rear and front porch extension to allow the conversion of the existing single family house to three self contained flats with associated car parking, cycle and refuse storage.

  Refused Full applications New dwelling Extension 17 docs
  Small 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