23 Heathfield Gardens, Chiswick, London, W4 4JU

This site has had 7 applications since 2025: 4 approved, 0 refused.

• P/2026/2680 Awaiting decision

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Variation of condition 2 (approved plans) to allow the increase in width of the rear extension, removal of two rooflights from the ground floor side and rear extensions, reduction in width of window 18 at first floor level, minor amendments to the internal layout around the boot room and to the size of window 20 at first floor level of planning permission P/2026/1234 approved 22/04/2026 for the demolition of the existing two storey rear extension and erection of a part two storey, part single storey rear extension, and a side extension to join the detached garage and gym to the house. Installation of double glazed windows to replace existing. Relocation of the existing air conditioning unit to garden boundary wall

  Submitted 22 Sep 2026 Conditions
• P/2026/2307 Granted

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Works to tree in a Conservation Area: T1 Cherry (Prunus spp). Fell to ground level.

  Decided 17 Sep 2026 Trees
• P/2026/1864 Granted

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Works to Cherry tree within a conservation area. Reduce height by 4.5 metres and back to previous reduction points. Reduce lateral growth by 2-3.5 metres and back to previous reduction points, retaining shortened furnishing growth. Thin internal growth by 15%. Remove ivy to ground level.

  Decided 4 Aug 2026 Trees
• P/2026/1234 Granted

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Demolition of the existing two storey rear extension and erection of a part two storey, part single storey rear extension, and a side extension to join the detached garage and gym to the house. Installation of double glazed windows to replace existing. Relocation of the existing air conditioning unit to garden boundary wall.

  Decided 26 Jun 2026 Householder
• P/2025/3714 Granted

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Erection of two storey side extension with a part single part two storey rear extension, following the demolition of the garage and the two storey rear extension. Replacement of the existing windows throughout with double glazed timber frame units, repositioning of the air source heat pump (ASHP) to rear garden.

  Decided 17 Apr 2026 Householder
• P/2025/2607 Withdrawn

  23 Heathfield Gardens, Chiswick, London, W4 4JU

  Works to trees within a conservation area - Cherry - Reduce by 2m Height and 1.5m Width.

  Submitted 26 Aug 2025 Trees

1. 5 Oct 2026

   Received by Hounslow

2. 9 Oct 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 30 November 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 tree works applications in a median of 28 days. More in our guide to how long planning decisions take.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/2307 Submitted 7 Aug 2026 50 yards away

  Works to tree in a Conservation Area: T1 Cherry (Prunus spp). Fell to ground level.

  Granted Trees 5 docs

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2025/3714 Submitted 15 Dec 2025 50 yards away

  Erection of two storey side extension with a part single part two storey rear extension, following the demolition of the garage and the two storey rear extension. Replacement of the existing windows throughout with double glazed timber frame units, repositioning of the air source heat pump (ASHP) to rear garden.

  Granted Householder Extension Demolition +1 35 docs
  Domestic

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2025/2607 Submitted 26 Aug 2025 50 yards away

  Works to trees within a conservation area - Cherry - Reduce by 2m Height and 1.5m Width.

  Withdrawn Trees 2 docs

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/1864 Submitted 23 Jun 2026 50 yards away

  Works to Cherry tree within a conservation area. Reduce height by 4.5 metres and back to previous reduction points. Reduce lateral growth by 2-3.5 metres and back to previous reduction points, retaining shortened furnishing growth. Thin internal growth by 15%. Remove ivy to ground level.

  Granted Trees 4 docs

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/1234 Submitted 22 Apr 2026 50 yards away

  Demolition of the existing two storey rear extension and erection of a part two storey, part single storey rear extension, and a side extension to join the detached garage and gym to the house. Installation of double glazed windows to replace existing. Relocation of the existing air conditioning unit to garden boundary wall.

  Granted Householder Extension Demolition +1 38 docs
  Small domestic

• 23 Heathfield Gardens, Chiswick, London, W4 4JU

  P/2026/2680 Submitted 22 Sep 2026 50 yards away

  89% historically approved · decision due ~17 Nov

  Variation of condition 2 (approved plans) to allow the increase in width of the rear extension, removal of two rooflights from the ground floor side and rear extensions, reduction in width of window 18 at first floor level, minor amendments to the internal layout around the boot room and to the size of window 20 at first floor level of planning permission P/2026/1234 approved 22/04/2026 for the demolition of the existing two storey rear extension and erection of a part two storey, part single storey rear extension, and a side extension to join the detached garage and gym to the house. Installation of double glazed windows to replace existing. Relocation of the existing air conditioning unit to garden boundary wall

  Awaiting decision Conditions Extension Loft or dormer +2 10 docs
  Small domestic

• P/2026/2833 Awaiting decision

  271 Jersey Road, Isleworth, TW7 4RF

  Works to tree within a conservation area. Pine (T1) - Fell to ground level.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2829 Awaiting decision

  141 Park Road, Chiswick, London, W4 3EX

  Works to four trees within a conservation area. Yew (T1) - Crown reduction by up to 1.5 meters to shape and contain Final height 6 meters and final spread 6 meters Bay (T2) - Crown reduction by up to 4 meters to shape and contain. Final height 5 meters and final spread 4 meters. Purple Leaf Plum (T3) - Crown reduction by up to 4 meters to shape and contain. Final height 5 meters and final spread 4 meters. Magnolia (T4) - Crown reduction by up to 1 meter to shape and contain. Final height 3.5 meters and final spread 3 meters.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2830 Awaiting decision

  52 Percy Road, Isleworth, TW7 7HB

  Works to trees within a conservation area. REAR GARDEN G1 Sycamore (Acer pseudoplatanus). Reduce height and spread of all trees in the group by approximately 4-5m, to contain and shape. Final height 5-6m and final spread 7-8m.

  Received 6 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2814 Awaiting decision

  13 Eastbourne Road, Chiswick, London, W4 3EB

  Works to a row of Conifer Leylandii in rear garden within a conservation area. Reduce by approximately 2.5 metres.

  Received 5 Oct, published by the council 9 Oct 2026 Trees
• P/2026/2816 Awaiting decision

  16 Wilmington Avenue, Chiswick, London, W4 3HA

  Works to tree within a conservation area. Pear (T1) - Fell tree to ground level and replace with one or more new trees of appropriate species.

  Received 5 Oct, published by the council 9 Oct 2026 Trees