2 Sussex Avenue, Isleworth, TW7 6LA

This site has had 2 applications since 2026: 1 approved, 0 refused.

• P/2026/1603 Granted

  2 Sussex Avenue, Isleworth, TW7 6LA

  Erection of two storey side extension and part single storey part two storey rear extension.

  Decided 3 Aug 2026 Householder

1. 19 Aug 2026

   Received by Hounslow

2. 26 Aug 2026

   Added to PlanIndex

3. 5 Sep 2026

   Status changed to REGISTERED: Under Consultation

   Previously REGISTERED: Valid.

4. 17 Sep 2026

   Status changed to REGISTERED: Under Assessment

   Previously REGISTERED: Under Consultation.

5. Decision

   Awaiting decision

   Decision expected by 14 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Hounslow took a median of 56 days over the applications it decided in the last year.

This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided householder applications in a median of 63 days. More in our guide to how long planning decisions take.

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.

• 2 Sussex Avenue, Isleworth, TW7 6LA

  P/2026/1603 Submitted 28 May 2026 50 yards away

  Erection of two storey side extension and part single storey part two storey rear extension.

  Granted Householder Extension 6 docs
  Small domestic

• 12 SUSSEX AVENUE, ISLEWORTH, TW7 6LA

  PA/2021/2820 Submitted 9 Jul 2021 50 yards away

  Ground floor rear extension 4.50 metres deep, maximum height of 3.25 metres, 2.95 metres high to the eaves

  Granted Prior approval Extension 5 docs

• 136 Woodlands Road, Isleworth, TW7 6JZ

  P/2024/3012 Submitted 9 Sep 2024 50 yards away

  Proposal for the demolition of existing single storey double garage and construction of new single garage and utility area with first floor side extension above. Extension of existing second floor loft conversion above the proposed first floor extension with rear dormer enlarged and side dormer re-designed. Juliette balcony proposed to the second floor rear elevation and 2 Velux roof lights to the front roof slopes.

  Granted Householder Extension Loft or dormer +1 13 docs
  Small domestic

• 136 Woodlands Road, Isleworth, TW7 6JZ

  PA/2026/1956 Submitted 1 Jul 2026 50 yards away

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

  Granted Prior approval Extension 6 docs

• 246 WOODLAND GARDENS, ISLEWORTH, TW7 6LT

  P/2023/0041 Submitted 4 Jan 2023 50 yards away

  Certificate of lawfulness for the erection of rear roof extension with hip to gable conversion and two roof windows.

  Granted Lawful development Extension Loft or dormer +1 8 docs

• 116 Woodlands Road, Isleworth, TW7 6JY

  P/2026/1356 Submitted 6 May 2026 100 yards away

  Erection of a single storey rear extension to the house

  Granted Householder Extension 7 docs
  Small domestic

• 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