Planning application
P/2026/2151
17 Crowntree Close, Isleworth, TW7 5PF
Proposal
Erection of a side roof extension with three roof windows on the other side of the house
As published by the council, reference P/2026/2151
Timeline
Dates from the published record
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22 Jul 2026
Received by Hounslow
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23 Jul 2026
Validated
Checked as complete and ready for consideration.
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26 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Hounslow for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About householder applications
How this application type works
Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.
Nearby applications
Within 500 metres
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P/2026/1455 Granted
17 Crowntree Close, Isleworth, TW7 5PF
Erection of a single-storey side and rear infill extension, and a front porch extension.
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P/2026/1437 Granted
17 Crowntree Close, Isleworth, TW7 5PF
Certificate of lawfulness for the proposed erection of a rear roof extension with front roof windows to the house.
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P/2025/3031 Withdrawn
1 Wyke Close, Isleworth, TW7 5PE
Please find the proposed work to be carried out in Wyke Close and the surrounding area T1/T2 Silver Birch - reduce and shape canopy by 2 metres T4/T5/T6/T7 Common Lime - reduce and reshape by 2 metres and lift canopy to give 4 metres ground clearance for pathway and road T12 Holm Oak - reduce and shape canopy by 1.5 metres T16 Silver Birch- fell to ground level T22 Sweet Chestnut- remove major deadwood in canopy T30 Plum- Prune away from number 8s garden to give clearance and shape remainder of canopy by approximately 2 metres T32/T33/T34 Horse Chestnut/Common Lime- remove epicormic up to crown break T58 Holm Oak - reduce and shape canopy by 2 metres and heavily trim ivyunderneath T65 Common Lime - remove epicormic growth on stem to height of 4 metres T68 Sycamore - remove saplings either side of main stem T73 English Oak- remove all of major deadwood and prune back branches extending over pathway by approximately 2 metres T76/T77 English Oak - removal of major deadwood and reduce cano... read more
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P/2026/1884 Granted
Stags Way, Isleworth, TW7 5PQ
5-day tree notification to fell Lime T8 (T199 on supplied survey plan) within TPO order number 64 and in communal green space.
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P/2021/2987 Refused
185 SYON LANE, ISLEWORTH, TW7 5PU
Certificate of lawfulness for erection of rear roof extension and two front rooflights.
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P/2026/1413 Granted
191 Syon Lane, Isleworth, TW7 5PU
Works to tree in a Conservation Area. Removal of 1 X Magnolia tree which is located within the boundary.
Other householder applications
In Hounslow
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P/2026/2228 Awaiting decision
Magnolias,1 Eastbourne Road,Chiswick,W4 3EB
Erection of a front porch, single storey rear infill extension, first floor rear extension, rear roof extension and a single storey detached outbuilding.
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P/2026/2222 Awaiting decision
17 Park Drive,Acton,W3 8ND
Replacement of porch window with double glazed windows and rear window to be replaced with double glazed windows.
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P/2026/2208 Awaiting decision
20, Adelaide Terrace Great West Road, Brentford, TW8 9PQ
Erection of a single storey rear and side extension.
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P/2026/2215 Awaiting decision
1 The Drive, Feltham, TW14 0AQ
Erection of a single storey detached outbuilding.
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P/2026/2206 Awaiting decision
28 Eversley Crescent, Isleworth, TW7 4LS
Erection of a side roof extension with roof windows and a Juliet balcony to the rear of the property.