Planning application
Haslemere Heathrow Estate, Silver Jubilee Way, Hounslow, TW4 6NF
Works: Demolition
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Outline planning permission with all matters reserved except access. A demolition phase and phased redevelopment (each phase being an independent act of development) comprising data centre use (Use Class B8) of up to 50,000 sqm GEA, including ancillary offices, internal plant and equipment (including flues), and substation. In addition up to 4,150sqm GEA of work units (Use Class E(g)(i-iii), B2, B8); car parking; provision of external plant and equipment (including flues); creation of servicing areas and provision of associated services, including waste, refuse, cycle storage, and lighting; and for the laying out of the buildings; routes and open spaces within the development; and all associated works and operations including but not limited to: demolition; earthworks; provision of attenuation infrastructure, engineering operations. This application is for a phased development, each phase being an independent act of development, capable of coming forward in distinct and separable phase... read more
As published by the council, reference P/2025/3669
Application record
- Reference
- P/2025/3669
- Type
- PO-Outline Application
- Status
- REGISTERED: Pending recommendation
- Received
- 10 Dec 2025
- Validated
- 10 Dec 2025
- Ward
- Cranford
- Postcode
- TW4 6NF
Timeline
Dates from the published record
-
10 Dec 2025
Received by Hounslow
-
26 Jul 2026
Added to PlanIndex
-
30 Jul 2026
Status changed to REGISTERED: Pending recommendation
Previously REGISTERED: Under Assessment.
-
Decision
Awaiting decision
Decision expected by 4 February 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.
Documents
Plans, drawings, consultee responses and the officer's report
120 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.
Trade members open them 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 outline applications in a median of 56 days. More in our guide to how long planning decisions take.
About outline applications
An outline application tests the principle of developing a site, holding back details such as appearance and landscaping as reserved matters for later approval. More in our guide to planning application types.
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