393 Whitton Dene, Isleworth, TW7 7NF

1. 22 Mar 2026

   Received by Hounslow

2. 23 Mar 2026

   Validated

   Checked as complete and ready for consideration.

3. 18 May 2026

   Decision issued: REFUSED

4. 12 Aug 2026

   Added to PlanIndex

Hounslow refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 389 Whitton Dene,Isleworth,Hounslow,TW7 7NF

  P/2026/0389 Submitted 9 Feb 2026 50 yards away

  Formation of a vehicular access to the public pathway.

  Granted Full applications 9 docs

• 210 Whitton Dene, Isleworth, TW7 7LU

  P/2026/2150 Submitted 22 Jul 2026 50 yards away

  76% historically approved · decision due ~29 Oct

  Erection of a single storey detached outbuilding.

  Awaiting decision Householder 6 docs
  Small domestic

• 86 Kneller Gardens, Isleworth, TW7 7NW

  P/2026/2425 Submitted 25 Aug 2026 50 yards away

  100% historically approved · decision due ~20 Oct

  Certificate of lawfulness for the proposed erection of a rear roof extension with hip to gable conversion, two front roof lights and a single storey rear extension.

  Awaiting decision Lawful development Extension Loft or dormer 13 docs
  Small domestic

• 86 Kneller Gardens, Isleworth, TW7 7NW

  PA/2026/2768 Submitted 30 Sep 2026 50 yards away

  77% historically approved · decision due ~25 Nov

  Ground floor rear extension 4.50 metres, maximum height 3.20 metres, 2.70 metres high to the eaves.

  Awaiting decision Prior approval Extension 8 docs

• 212 WHITTON DENE, ISLEWORTH, TW7 7LU

  P/2021/2457 Submitted 17 Jun 2021 50 yards away

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

  Granted Householder Extension 4 docs
  Small domestic

• 72 Kneller Gardens, Isleworth, TW7 7NW

  PA/2026/2246 Submitted 3 Aug 2026 50 yards away

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

  Granted Prior approval Extension 6 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