Colt DCS London 4 (Hayes)

Operational

Hayes Digital Park, Hayes, West London

Colt DCS London 4 (Hayes) is a data center in London, United Kingdom, operated by Colt DCS, with 31 MW of published IT capacity, currently operational, opened in 2025.

Hyperscale data centre at Hayes Digital Park in West London delivering 31 MW of IT power across five floors, fully let with phase 1 completed in 2025.

Colt DCS London 4 (Hayes) — schematic illustration — Schematic illustration based on published specifications, not a photograph · air-cooled · in operation

Operator: Colt DCS
City: London, United Kingdom
Power, MW: 31 MW
Cooling: Air
Opened: 2025

Coloprice Score

28 out of 100

Class E · #51 of 109 in United Kingdom

Resilience0/35
Compliance0/20
Transparency8/20
Scale11/15
Maturity9/10

How the score is calculated →

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London 4 is the newest operational building on Colt DCS's Hayes Digital Park campus in West London, a hyperscale facility delivering 31MW of IT power across five floors of data halls. Built to Colt's own Tier 3 resilient infrastructure specification, it was designed for cloud and AI service providers needing scalable capacity, with the ability to support high-performance computing as customer workloads grow. Demand validated the design early: the site was fully let before phase 1 completed in 2025. The Hayes location gives tenants access to West London's dense concentration of diverse fibre routes and low-latency adjacency to the capital's other major data centre clusters, with Heathrow Airport around 15 minutes away. The facility runs on renewable energy and is operated by Colt DCS's on-site technical teams. As an anchor of a campus now approved to grow to 160MW, London 4 primarily suits hyperscale and large wholesale deployments rather than single-rack retail colocation.