1 Teesdale Avenue, Isleworth, TW7 6AP

1. 18 Feb 2026

   Received by Hounslow

2. 17 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 20 May 2026

   Decision issued: APPROVED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 20 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 9 Teesdale Avenue, Isleworth, TW7 6AP

  P/2026/0505 Submitted 12 Feb 2026 50 yards away

  Erection of a single storey rear extension following demolition of the existing extension

  Granted Householder Extension Demolition 5 docs
  Small domestic

• 17 Teesdale Gardens, Isleworth, TW7 6AT

  PA/2024/3830 Submitted 15 Nov 2024 150 yards away

  Ground floor rear extension 5.00 metres deep, maximum height 3.15 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 7 docs

• 17 Teesdale Gardens, Isleworth, TW7 6AT

  PA/2024/3115 Submitted 17 Sep 2024 150 yards away

  Ground floor rear extension 3.00 metres deep., maximum height 3.15 metres, 3.00 metres high to the eaves

  Refused Prior approval Extension 12 docs

• 293 LONDON ROAD, ISLEWORTH, TW7 5AT

  P/2021/2591 Submitted 25 Jun 2021 150 yards away

  Erection of a single storey side extension to the house

  Granted Householder Extension 6 docs
  Small domestic

• 8 TEESDALE GARDENS, ISLEWORTH, TW7 6AT

  PA/2021/2334 Submitted 9 Jun 2021 150 yards away

  Ground floor rear extension 6.00 metres deep, maximum height 3.90 metres, 3.00 metres high to the eaves

  Granted Prior approval Extension 10 docs

• SMALLBERRY GREEN SCHOOL TURNPIKE WAY, ISLEWORTH, TW7 5BF

  PALL/2021/2965 Submitted 20 Jul 2021 150 yards away

  Prior approval for installation of solar photovoltaic (PV) equipment

  Granted Prior approval 11 docs

• P/2026/2304 Granted

  18 Clifden Road, Brentford, TW8 0PF

  Erection of a side and rear extensions.

  Received 7 Aug, published by the council 12 Aug 2026 Householder
• P/2026/2804 Awaiting decision

  128 Durham Road, Feltham, TW14 0AE

  Erection of a detached outbuilding in the rear garden following demolition of existing shed.

  Received 2 Oct, published by the council 9 Oct 2026 Householder
• P/2026/2301 Granted

  4 Glebe Street, Chiswick, W4 2BG

  Erection of a front side and rear side infill extensions with alterations to the rear elevation, a rear side first floor infill extension with replacement of windows to the rear elevation and installation of new rooflights to the existing ground floor infill extension of the house

  Received 7 Aug, published by the council 16 Aug 2026 Householder
• P/2026/1167 Granted

  20 Firs Drive, Hounslow, TW5 9TD

  Erection of part one, part two-storey side extension following demolition of existing garage and part one, part two-storey rear extension. Raising of roof ridge, erection of rear roof extensions, and installation of one front roof window.

  Received 15 Apr, published by the council 26 Jul 2026 Householder
• P/2026/2025 Granted

  1 Kneller Gardens, Isleworth, TW7 7NP

  Erection of a single storey rear and first floor side extension incorporating the conversion of the existing garage to a habitable room

  Received 8 Jul, published by the council 26 Jul 2026 Householder