Council planning record

Details pursuant to the discharge of Condition 25 (Air Quality Assessment) of planning permission ref. 49261/APP/2024/2904 dated 12-03-2026 (Demolition of the existing building and structures on site, and all other associated site clearance works. Construction of a data centre building (Class B8) with plant at roof level with an emergency generator (1no.) and associated flue (provided within an external compound adjoining the data centre building), sprinkler tank and pumphouse, security guard house, and provision of one kiosk substation and MV Building. The development also comprises the construction of a new access and internal road and circulation areas, footpaths, provision of car and bicycle parking, hard and soft landscaping and other associated works and ancillary site infrastructure.)

UNIT 4, SILVERDALE INDUSTRIAL ESTATE SILVERDALE ROAD HAYES

UndecidedReference: 49261/APP/2026/2094London Borough of Hillingdon

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Application summary

Status
Undecided
Application type
Not published
Received
25 Aug 2026
Validated
25 Aug 2026
Determination deadline
27 Oct 2026
Local authority
London Borough of Hillingdon

Application overview

Details pursuant to the discharge of Condition 25 (Air Quality Assessment) of planning permission ref. 49261/APP/2024/2904 dated 12-03-2026 (Demolition of the existing building and structures on site, and all other associated site clearance works. Construction of a data centre building (Class B8) with plant at roof level with an emergency generator (1no.) and associated flue (provided within an external compound adjoining the data centre building), sprinkler tank and pumphouse, security guard house, and provision of one kiosk substation and MV Building. The development also comprises the construction of a new access and internal road and circulation areas, footpaths, provision of car and bicycle parking, hard and soft landscaping and other associated works and ancillary site infrastructure.)

Proposal details

Reference
49261/APP/2026/2094
Ward
HAYES TOWN 2022
Agent
Mr Harry Payne The Minster Building 21 Mincing Lane London EC3R 7AG

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Application location

UNIT 4, SILVERDALE INDUSTRIAL ESTATE SILVERDALE ROAD HAYES

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Documents 4 of 4

DocumentPublishedAction
Application Form redacted Application Form - Without Personal DataAPPLICATION FORM27 Aug 2026View
Low Emission Strategy Additional plansSUPPORTING INFORMATION27 Aug 2026View
Air Quality Assessment 2 Additional plansAIR QUALITY REPORT27 Aug 2026View
Air Quality Assessment Additional plansAIR QUALITY REPORT27 Aug 2026View

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