Data Center Map

Kao Data Harlow Campus

KAO Data
London Road
CM17 9NA Harlow
United Kingdom
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Built on the site of Sir Charles Kao’s pioneering discovery of fibre optic cable in 1966, and home to some of the UK's most demanding compute, the Harlow campus is the UK’s largest data centre campus currently under development.

Strategically located between Cambridge and London, the 15 acre, +£230m campus compromises four state-of the-art, carrier neutral data centres. When fully completed, these will support an ITE load of 40MW, across 150,000sq ft of technical space – all powered by 100% renewable energy.

In the future, the campus can develop beyond this footprint to eventually accommodate an impressive IT-load of 83MW.


This is a campus listing, that covers multiple data centers. Click below listings for further details:
Data CenterOperated ByDetails
Kao Data KLON-03KAO Data
Kao Data KLON-07KAO Data
Kao Data KLON-04KAO Data
Kao Data KLON-08KAO Data
Kao Data KLON-02KAO Data
Kao Data KLON-01KAO Data
Events
This data center has timeline events listed. Typically events are related to M&A history, rebranding, capacity expansions etc.
Sep 2, 2025 - Stage Change
Kao Data submits plans for two new data centers (KLON7 and KLON8) at Harlow campus
- New Stage: Announced
Nov 19, 2025 - PPA
Downing to build 40MW solar farm for Kao Data's Harlow colocation campus
- Phase Power: 40 MW
Pricing & Services
If you are looking for colocation, cloud, connectivity or other services in Kao Data Harlow Campus, other data centers in London or operated by KAO Data, please try our free quote service or reach out for a free consultation about your data center needs. We use a best effort process to qualify opportunities and route them to matching operators.
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KAO Data

KAO Data

Data Center Operator at
Kao Data Harlow Campus
London Road
Headquartered in Essex, Essex

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