Planning application
23 Heathfield Gardens, Chiswick, London, W4 4JU
Works: Extension Loft or dormer Demolition Windows or glazing Small domestic
Read from the description, not a valuation. How we read the register
Relates to P/2026/1234
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
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
As published by the council, reference P/2026/2680
Application record
- Reference
- P/2026/2680
- Type
- Variation / Removal of a condition all other minor
- Status
- Pending As published: REGISTERED: Under Consultation
- Received
- 22 Sep 2026
- Validated
- 22 Sep 2026
- Ward
- Chiswick Gunnersbury
- 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.
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P/2026/2827 Awaiting decision
23 Heathfield Gardens, Chiswick, London, W4 4JU
Works to tree within a conservation area, Lime (T1) x1 - Fell.
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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.
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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.
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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.
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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.
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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.
Timeline
Dates from the published record
-
22 Sep 2026
Received by Hounslow
-
30 Sep 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 17 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.
Related applications
Cases linked to this one on the register
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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.
Documents
Plans, drawings, consultee responses and the officer's report
10 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 documentsWhat happens while it is decided
This application is with Hounslow for determination, against a statutory target of eight weeks. Over the last year Hounslow decided condition discharge and variation applications in a median of 59 days. More in our guide to how long planning decisions take.
About condition discharge and variation applications
This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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23 Heathfield Gardens, Chiswick, London, W4 4JU
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
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 docsDomestic -
23 Heathfield Gardens, Chiswick, London, W4 4JU
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
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
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
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 docsSmall domestic
Other condition discharge and variation applications
In Hounslow
-
P/2026/2537 Granted
LAND AT UPS HOUSE FOREST ROAD, FELTHAM, TW13 7DY
Details of Part B of Condition 26 (EV Charging Points) submitted pursuant to permission P/2023/2176 dated 12/11/2024 for Redevelopment of the Site to provide six industrial units (Class E(g)(iii) / B2 / B8) accommodating 6,286 sqm employment floor space with associated landscaping, drainage, access and other works following the demolition of the existing buildings on the Site
-
P/2026/0968 Granted
U P S House, Forest Road, Feltham, TW13 7DY
Details of condition 28 (Servicing and Delivery Plan) submitted pursuant to planning permission P/2023/2176 dated 12/11/2024 for Redevelopment of the Site to provide six industrial units (Class E(g)(iii) / B2 / B8) accommodating 6,286 sqm employment floor space with associated landscaping, drainage, access and other works following the demolition of the existing buildings on the Site
-
P/2026/2173 Granted
Land Rear of 26-48 & 34 Amhurst Gardens, Isleworth,TW7 6AJ
Details of Conditions 5 (Hard and Soft Landscaping), 9 (Boundary Treatment) and 22 (Stage 1 Written Scheme of Investigation (WSI)) submitted pursuant to planning permission P/2025/0430 dated 28/11/2025 for erection of eight houses with an associated access road, private parking, amenity space, landscaping, cycle and bin stores following the demolition of 34 Amhurst Gardens
-
P/2026/2302 Granted
17 Greencroft Road, Hounslow, TW5 0BQ
Details of Condition 2 (Clothes drying area) submitted pursuant to planning permission P/2025/3107 approved on appeal (Appeal Ref: 6004619) dated 24/06/2026 for the retrospective planning application for change of use from a single family house (Use Class C3) to a House in Multiple Occupation (HMO) for up to six people (Use Class C4)
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P/2026/2276 Refused
Hanworth Trading Estate, Unit 1,Hampton Road West,Feltham,TW13 6DH
Details of Condition 5 (Construction Logistics Plan) and condition 6 (cycle stands) submitted pursuant to permission P/2025/2585 dated 28/04/2026 for Change of use from Car Storage, use Class B8, to Open Self Storage, use Class B8, and the siting of 382 storage containers.