Overview of Gesloten Domain Data Centre

Gesloten Domain Data Centre is a Tier-3 enhanced Data Centre specifically constructed to financial sector specifications.

On a 3.54 acre site to service virtualisation, co-location, D/R hot desks data storage, data backup and mission critical IT.

Gesloten Domain has a total accommodation of 60,696 sqft (5,638.81 sqm) including at least 14,027 sqft (1,303.10 sqm) of technical accommodation.

Our Facility

  • Purpose built operational Tier 3 facility with 14,027 sqft of technical space located on its own self contained highly secure site.
  • Specifically built to FSA standards.
  • Ability to accept deliveries on behalf of customers and store until needed.
  • Disabled access throughout the site.
  • Rubbish disposal for equipment boxes.
  • Screen and keyboard on wheeled trolley with stool to sit on.
  • 24 hour un-escorted access – Permanent passes available or login to a portal and generate an access request instantly.
  • Customer equipment build-out room.
  • Caged private areas.
  • Business continuity suite.
  • Non data hall storage areas available for storage of on-site spare parts.

Technical Features of Gesloten Domain Data Centre


  • 2 seperate electrical feeds.
  • 3 x 11kVa x 415V transformers.
  • Generators: configured at N + N.
  • 21 day fuel supply for generators.
  • UPS systems: configured at N + N.


  • Heavy duty floor loading.
  • 60mm deep void.


  • Highly secure site with gatehouse and security bridge to control access.
  • Double mesh security fence 3m high to perimiter.
  • Digitally recorded CCTV system.
  • Centralised access control with airlock access to site and data halls.
  • Enhanced security doors.
  • Motorised vehicle gates.

Fire Protection

  • Full BS6266 fire detection using multi criteria heads.
  • Very early smoke detection alarm (HSSD).
  • Argonite extinguishing system serving all data halls and critical plant areas.
  • Sophisticated fire detection and suppressions system.

Air Conditioning

  • Resiliant primary and secondary chilled water close control air conditioning system N + 1 redundancy with free cooling capability providing 700 W/m2 of cooling to main data hall.
  • Additional halls cooled with DX CRAC units N + 1 redundancy at up to 1500 W/m2.
  • 24 x 365 in-house operational support.


  • All plant systems monitored and controlled using Sauter building management system.
  • Automatic Link from BMS alarms to on-site maintenance engineers and security bridge.
  • Professional team of qualified engineers dedicated to network support.

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