155 Jersey Road, Isleworth, TW7 4QL
Refused on 15 May 2026
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
Proposal
Certificate of lawfulness for the proposed enlargement of the rear roof extension to the house.
- Received
- 14 April 2026
- Council
- London Borough of Hounslow
- Ward
- Osterley & Spring Grove
- ReceivedReceived14 Apr
- ValidatedValidated14 Apr
- Consult.Consultation14 Apr
- TargetTarget Date
- DecidedDecided15 May
Decided in 31 days (council typically 56)
About this application
This is an outline application for an extension at 155 Jersey Road, Isleworth, TW7 4QL. Hounslow has handled 1,060 applications of this type. This one was decided in 31 days, 4 weeks quicker than Hounslow's typical decision time. The site is in the Osterley Park conservation area. There has been 1 other application at this address. In the past year there have been 215 applications across Osterley & Spring Grove. We hold 894 applications in total for the TW7 postcode area.
82% of outline applications at London Borough of Hounslow were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Application details
- Postcode
- TW7 4QL
- Application type
- Lawful Development Certificate (Proposed)
- Scale / size
- Small
Planning application dates
- Date validated
- 14 April 2026
- Consultation expiry
- 14 April 2026
- Consultation end
- 14 April 2026
- Application expires
- 9 June 2026
Planning decision
- Statutory period
- 56 days
Additional information
- Documents
- 6
Site constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Osterley Park
- Article 4 direction: Dwellinghouses (C3) to small HMOs (C4) - borough-wide Article 4 Direction
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (21)
flood storage areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-11-03. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
Planning history at this site
2 other applications at this property, newest first.
- 202514 Feb
Felling of a Cherry Tree within a Conservation Area: T1 - Cherry Tree, rear garden, fell to ground
ApprovedWorks to Trees in Conservation AreaP/2025/0473 - 202520 Jan
Erection of a two storey side, single storey rear, part first floor rear and a rear roof extension with two…
ApprovedHouseholderP/2025/0165
Source: Hounslow
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Around this site
Nearby applications
- 155 Jersey Road, Isleworth, TW7 4QLP/2025/0473 · TreesApproved0.0 mi
- 190 Jersey Road, Isleworth, TW7 4QNP/2026/2212 · FullApproved0.0 mi
- 2 Bassett Gardens, Isleworth, TW7 4QZP/2026/1918 · FullApproved0.0 mi
- 167 JERSEY ROAD, ISLEWORTH, TW7 4QJP/2024/0968 · TreesApproved0.1 mi
- 11 Cranmore Avenue, Isleworth, TW7 4QWP/2026/0786 · OutlineApproved0.1 mi
For applicants and trades
Contractors near this project
Find contractors for extensions near this site- Avent Roofing ServicesVerifiedWestminsterRoofing9.3 mi
- Atlas South Technical Service LimitedVerifiedLondonProperty MaintenanceHandyman9.6 mi
- Bns Construction Services LtdHounslowLoft ConversionsHouse Extensions0.4 mi
- Chiswick Maintenance LtdElectrician0.5 mi
Planning something similar?
See what the council approved and refused for loft conversions and dormers on your street. Pick your home and get the evidence before you pay for drawings.