33 Roxborough Avenue, Isleworth, TW7 5HQ

1. 3 Oct 2025

   Received by Hounslow

2. 10 Dec 2025

   Decision issued: APPROVED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 10 December 2025, 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.

• 35 ROXBOROUGH AVENUE, ISLEWORTH, TW7 5HQ

  P/2021/2261 Submitted 7 Jun 2021 50 yards away

  Variation of Condition 2 (approved plans) and Condition 3 (Materials) to allow external finish above study to use tiles instead of render following planning permission 00966/35/P1 for erection of a single storey front, side infill and rear extension to the house including four roof lights and the conversion of the garage to a habitable room.

  Granted Householder Extension Loft or dormer 5 docs
  Small domestic

• 37 Roxborough Avenue, Isleworth, TW7 5HQ

  P/2025/2519 Submitted 14 Aug 2025 50 yards away

  Erection of a two storey side, single storey rear, part first floor rear extension and a new front porch following the demolition of the existing side garage

  Granted Householder Extension Demolition 9 docs
  Small domestic

• 39 Roxborough Avenue, Isleworth, TW7 5HQ

  P/2026/0873 Submitted 16 Mar 2026 50 yards away

  Erection of a part two storey side, single storey rear extension with two roof lanterns and a part first floor rear extension to the house.

  Granted Householder Extension 14 docs
  Small domestic

• 38 ROXBOROUGH AVENUE, ISLEWORTH, TW7 5HJ

  P/2021/2421 Submitted 15 Jun 2021 50 yards away

  Conversion of the garage into a habitable room of the house

  Granted Householder 6 docs
  Domestic

• 62 ALBURY AVENUE, ISLEWORTH, TW7 5HX

  PA/2021/3503 Submitted 27 Aug 2021 100 yards away

  Ground floor rear extension 4 metres deep, maximum height of 3 metres, 2.90 metres high to the eaves

  Granted Prior approval Extension 4 docs

• 41 NORTHUMBERLAND AVENUE, ISLEWORTH, TW7 5HZ

  P/2019/3927 Submitted 29 Oct 2019 100 yards away

  Conversion of existing store into a habitable room and replacement of up and over door with new windows

  Granted Householder Windows or glazing 6 docs
  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