4 Waterside House, Cowley Business Park High Street Cowley Uxbridge
Proposal
Details pursuant to the discharge of Condition 6 (Contamination) of planning permission ref. 53180/APP/2021/1325, dated 19-05-2021 (Change of use from offices (Class B1a) to 51 studio apartments (Class C3) (Application for Prior Approval under Schedule 2, Part 3, Class O of the Town and Country Planning (General Permitted Development) (England) Order 2015 (as amended)).)
- Received
- 22 September 2025
- Decided
- 6 January 2026
- Council
- London Borough of Hillingdon
- Ward
- UXBRIDGE 2022
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.
- ReceivedSubmitted22 Sep
- ValidatedValidated22 Sep
- Consult.Consultation
- TargetTarget Date8 Jan
- DecidedDecided6 Jan
Decided in 106 days (council typically 56)
This is a full planning application for a change of use at 4 WATERSIDE HOUSE, COWLEY BUSINESS PARK HIGH STREET COWLEY UXBRIDGE. Hillingdon has handled 4,983 applications of this type and approves 81% of them, typically deciding them in 56 days. This one was decided in 106 days, 7 weeks longer than Hillingdon's median. There has been 1 other application at this address. In the past year there have been 120 applications across UXBRIDGE 2022.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Hillingdon
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Planning history at this site
1 other application at this property, newest first.
Planning constraints
Designations that overlap or adjoin the site outline.
- Article 4 direction: Changes of use from commercial, business and service uses to dwellinghouses+3 more
- Flood zone 1: Low probability (rivers and sea)
Possibly incomplete for this council: tree preservation orders.
Also checked, none recorded (22)
flood storage areas, conservation 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 2026-10-09. 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.
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