37 Wellington Avenue, Hounslow, TW3 3SY

1. 17 Nov 2025

   Received by Hounslow

2. 10 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

• 37 Wellington Avenue, Hounslow, TW3 3SY

  P/2025/3317 Submitted 5 Nov 2025 0m away

  Certificate of lawfulness proposed for a hip to gable conversion and erection of a rear roof extension and a single storey rear extension to the house.

  Granted Lawful development Extension Loft or dormer 4 docs
  Small domestic

• 207 CROMWELL ROAD, HOUNSLOW, TW3 3QW

  PA/2023/0830 Submitted 14 Mar 2023 87m away

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

  Granted Prior approval Extension 9 docs

• 177 Cromwell Road, Hounslow, TW3 3QW

  P/2025/2836 Submitted 22 Sep 2025 103m away

  Conversion of a dwelling house into two self-contained flats incorporating a front roof window to the house.

  Withdrawn Full applications New dwelling Windows or glazing 30 docs
  Domestic

• 58 VICTORIA AVENUE, HOUNSLOW, TW3 3ST

  PA/2019/4233 Submitted 25 Nov 2019 110m away

  Ground floor rear extension 4 metres deep, maximum height of 2.9 metres, 2.9 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 6 Roseville Avenue, Hounslow, TW3 3TD

  P/2026/2221 Submitted 30 Jul 2026 121m away

  76% historically approved · decision due ~13 Oct

  Erection of a single storey rear extension.

  Awaiting decision Householder Extension 16 docs
  Small domestic

• 237 Cromwell Road, Hounslow, TW3 3QT

  P/2025/2671 Submitted 3 Sep 2025 149m away

  Non Material Amendment to change the roofing material of the approved raised roof of permission P/2024/4173 dated 12/03/2025 for Erection of replacement roof with increase in height to the existing conservatory to allow conversion into sitting room to the house

  Granted Amendments Extension Roofing 6 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