Looking for maximum IT efficiency?

Then our London 3 data centre is the answer.

This state of the art carrier neutral Tier 3 site provides power provision of 32MVA. It is also designed to an industry leading PUE of 1.21 in order to fit in with your CSR strategy, and wider operational usage objectives.

Whether you require a rack, a cage, or a fully dedicated data hall, London 3 will provide you with an effective colocation solution that fits in with your current, and future IT strategy.

5 reasons to choose London 3

Security and protection – located away from your office premises to avoid deliberate attacks, London 3 operates using multiple security procedures to give you complete peace of mind that your data and IT is protected from forced entry and unauthorized access.

Power capacity – with a total power provision of 32MVA , London 3 will ensure that your IT power requirements are always met, providing you with fast networking and resilient connectivity.

Managed costs – helping you reduce your operational IT costs, London 3 will provide you with a cost effective solution to suit your needs today, and as your business evolves.

Support & reliability – our dedicated London 3 team provides service and support 24/7, ensuring that your IT colocation requirements are satisfied to remain market competitive.

Flexibility – being carrier neutral, London 3 allows you to access, switch and choose providers to support your multi-sourcing IT strategy, and expand capacity on demand to support your business growth objectives.

Key site specifications


  • Onsite security 24×7, multiple guards
  • High security perimeter fence
  • Photo badge card access system

Plus much more – download the full specification sheet below

Power capacity

  • Total power provision 33MVA
    Substation 1 – 25MVA/132kV and Substation 2 – 8MVA/11kV
  • Centralised, dedicated N+N UPS to each data hall
  • Range of power densities

Plus much more – download the full specification sheet below


  • Carrier neutral
  • Multiple, diverse entry points into data centre
  • Alternate carrier routing where feasible as requested by the customer

Fire control

  • Addressable analogue alarm system with double knock condition to initiate
    gas release above and below floor
  • Inert gas (Inergen, Argonite, Proinert) in all data halls and UPS rooms
  • HSSD smoke detection (VESDA) above and below raised floor and across fresh air louvers


  • Lowest risk designation by Environmental Agency at 1:1000
  • 1.4km (0.86miles) from the nearest railway line
  • 16km (10 miles) from the nearest major airport
  • No COMAH registered sites operating within 5km (3 miles)

Energy efficiency

  • Colt’s London 3 modular data centre is highly efficient with fresh air cooling and DX backup
  • Free cooling most of the year
  • Design PUE 1.21
  • Comprehensive energy monitoring system as standard

Need more information about London 3?

Then download our full site specification sheet here, and take a further look at how our colocation services in London fit in with your business needs.

In addition, we also have two more data centres in based in and around London. Explore our London 1 and London 2 sites here.

DCS - London 3 spec cover image