Colt London North: Welwyn Garden City

20 Black Fan Road

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The London, Welwyn Garden City data centre has over 12,500m2 of secure and flexible space.

London, Welwyn Garden City is a carrier neutral facility situated just 35 minutes train journey north of London’s Kings Cross station.


  • Total power provision 33MVA
    • Substation 1 - 25MVA/132 kV
    • Substation 2 - 8MVA/11kV
  • Centralised, dedicated N+N UPS to each data hall
  • Range of power densities 1000-3000W/m2
  • N+1 or N+N generators provisioned per data hall
  • 10 minutes battery autonomy


  • Onsite security 24/7, multiple guards
  • High security perimeter fence
  • Photo badge card access system
  • Car trap
  • Mantrap access to data halls
  • Central alarm monitoring with optional cabinet monitoring
  • Full CCTV coverage
  • Secure tenant areas available for equipment delivery storage and/or cabinet build/test area
  • ISO 27001 certification

Map and Nearby Locations:

20 Black Fan Road
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Sites within 15 miles of Colt London North: Welwyn Garden City

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Distance Site About
0.00 miles INAP North London
INAP's North London data center is located within Colt's facility on Black Fan Road
10.90 miles Thrive Luton
10.96 miles NTT Hempstead4
11.04 miles NTT Hempstead 1
11.13 miles NTT Hempstead 3
11.13 miles Coreix Enfield
11.30 miles NTT Hempstead 2
11.59 miles VIRTUS London1 Enfield
13.64 miles Kao Data: Harlow
The KAO datacentre campus is located in the London-Stansted-Cambridge technology corridor.
13.86 miles Ark: Meridian Park
14.99 miles DRT London (Chess Building)
16.10 miles LDeX London LDeX1
18.37 miles Verizon London UK5
18.61 miles Options West London
18.75 miles Infinity SDC HereEast
18.77 miles Colt Powergate
The Powergate data center is outside of the heart of the city but within zone 2, making the site easily accessible. This Colt tier III facility provides over 3,700m2 of data centre space and 15 MVA of power.
18.79 miles Vantage London I Campus
18.88 miles Equinix London LD9 Powergate
LD9 is located in West London's Park Royal campus. The data centre was a Telecity managed facility before Equinix acquired Telecity in July 2016.
18.96 miles Level3 London (Goswell)
19.09 miles Equinix London LD3
19.09 miles Vantage London II
19.21 miles Barclays Data Centre
19.37 miles Echelon LCY20
19.41 miles Visa United Kingdom
19.44 miles Volta EC1
The data centre is stacked vertically over seven stories and has a Tier III data centre design.
19.47 miles Epsilon London Telephone House
19.49 miles 1 Olivers Yard - Digital Realty
This site was formerly a Telecity site that was acquired by Equinix (January 2016) and subsequently sold to Digital Realty Trust (July 2016.)
19.57 miles Colt House London
19.61 miles iomart DC2 London
19.62 miles Redcentric London
19.67 miles Telehouse London Metro
19.81 miles Internap London
19.85 miles Interxion London 2
19.88 miles Interxion LON1 LON3
19.97 miles Zenium London One
19.98 miles Level3 London (10 Fleet)

Colt London North: Welwyn Garden City Data Center Photos

Operating Company

In 2014, Colt entered the APAC region when it acquired KVH and its seven data centers in across Japan, Singapore, Hong Kong and South Korea.

26 Facilities Owned
16 Markets Served
264.24 Megawatts
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Name Date Added Description
colt-london-north-datasheet-en September 2019

London North Data Sheet (PDF)