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Planning application

23 Heathfield Gardens, Chiswick, London, W4 4JU

Granted Hounslow P/2025/3714 Householder Applications

Works: Extension Demolition Windows or glazing Domestic

Read from the description, not a valuation. How we read the register

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

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.

As published by the council, reference P/2025/3714

Application record

Reference
P/2025/3714
Type
Householder Applications
Status
Granted As published: Decided: APPROVED
Decision
Granted As published: APPROVED
Received
15 Dec 2025
Validated
15 Dec 2025
Decided
17 Apr 2026
Postcode
W4 4JU

Site history

Applications at this address on the Hounslow register

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

  • P/2026/2827 Awaiting decision

    23 Heathfield Gardens, Chiswick, London, W4 4JU

    Works to tree within a conservation area, Lime (T1) x1 - Fell.

    Submitted 5 Oct 2026 Trees
  • 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/2025/2607 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

Timeline

Dates from the published record

  1. 15 Dec 2025

    Received by Hounslow

  2. 17 Apr 2026

    Decision issued: APPROVED

  3. 12 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

35 documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Watch members (£5 a month) open the document list from here.

Open the documents

What this grant of permission means

Hounslow granted permission on 17 April 2026, 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.

About householder applications

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.

Nearby applications

Within 0.3 miles

  • 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/2025/2607 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/2026/2827 Submitted 5 Oct 2026 50 yards away

    99% historically approved · decision due ~30 Nov

    Works to tree within a conservation area, Lime (T1) x1 - Fell.

    Awaiting decision Trees 3 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

In Hounslow

  • 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