20 Marlborough Road, Chiswick, London, W4 4ET

1. 17 Oct 2025

   Received by Hounslow

2. 12 Dec 2025

   Decision issued: APPROVED

3. 12 Aug 2026

   Added to PlanIndex

Hounslow granted permission on 12 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.

• 16A Marlborough Road, Chiswick, London, W4 4ET

  P/2024/3621 Submitted 31 Oct 2024 50 yards away

  Erection of a single storey rear extension.

  Withdrawn Householder Extension 12 docs
  Small domestic

• 14 Marlborough Road, Chiswick, London, W4 4ET

  P/2026/1439 Submitted 12 May 2026 50 yards away

  Works to trees in a Conservation Area. T1. Magnolia. Front garden. Crown reduce by up to 2 metres and to previous reduction points T2. Birch. Rear garden. Crown reduce by 2 metres and to previous reduction points to contain spread. T3 Purple Leaf Plum. Rear garden. Crown reduce by up to 2.5 metres and to previous reduction points to contain crown spread T4 Evergreen Magnolia. Rear garden. Crown reduce by up to 2.5 metres. T5 Holly. Rear garden. Crown reduce by up to 2.5 metres

  Granted Trees 4 docs

• 12A MARLBOROUGH ROAD, CHISWICK, LONDON, W4 4ET

  P/2021/2832 Submitted 13 Jul 2021 50 yards away

  Rear garden T1 Pine x 1 (Pinus sp): Fell to ground level using advanced rigging techniques.

  Granted Trees 5 docs

• 32 MARLBOROUGH ROAD, CHISWICK, LONDON, W4 4ET

  P/2023/0177 Submitted 18 Jan 2023 50 yards away

  Works to trees within a conservation area T1 Caucasian Wing Nut (Pterocarya fraxinifolia) - reduce all round to previous reduction points approx. 3 - 4m T2 - T6 Lime x 1 (Tilia spp) - reduce all round to previous reduction points approx. 4m

  Granted Trees 6 docs

• 13 Walpole Gardens, Chiswick, London, W4 4HG

  P/2025/2739 Submitted 10 Sep 2025 50 yards away

  Enlargement of existing rear roof extension and replacement of existing UPVC and timber framed windows for hardwood sash windows of the house

  Granted Householder Extension Windows or glazing 9 docs
  Domestic

• 27 BURLINGTON ROAD, CHISWICK, LONDON, W4 4BQ

  P/2023/0286 Submitted 30 Jan 2023 100 yards away

  Fell Black Walnut tree (T1) in rear garden in conservation area

  Granted Trees 3 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