Stellanor: London City

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80 Clifton St
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Stellanor: London City

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Gross Colocation Size

Stellanor acquired the site from Redcentric plc as part of a larger deal involving eight UK data centers.

FACLITY

The facility itself provides 28,000 sqft (2,600 sqm) of space, over five floors, in the very centre of London. The colocation facility is 21 metres above the level of the River Thames, and does not suffer from the flood risks of sites in the London docklands areas. The data centre roof is a popular place to mount aerials and antennas.

ELECTRICAL MAINS FEEDS

Power is delivered from two 132,000 volt main distribution stations in different parts of London. One is in Clifton Street, only 150 metres from the data centre. The main distribution stations transform the voltage down and feed it to two independent 11,000 volt substations in different parts of the data centre. Each substation has dual fully-redundant feeds through two separate resilient ring structures. Both substations continue to operate securely and reliably even if one half of an 11,000 volt ring on either substation is lost.

SIX UPS PAIRS

Electronic and IT equipment in the London data centre is supplied from six independent pairs of Uninterruptable Power Supplies (UPS). Each pair is in 2N configuration, with at least 15 minutes running autonomy. All are covered by fast-response manufacturer’s service contracts.

DC (-48 VOLT ) POWER FOR TELECOMS

Specialised telecoms equipment is fed from a 2N fully redundant -48 volt dc onsite power system. dc power is available in all data halls and private suites.

120 VOLT POWER FOR USA COLOCATION CUSTOMERS

Most electrical power used in colocation in London is specified at the 230/240 volt European standards. Most equipment for USA customers is bought to UK standards to operate in the UK. Occasionally, it may be necessary for a US specified piece of equipment to operate in the London data centre at 120 volts. Electrical power at 120 volts can be made available when needed.

Power in the London data centre is carefully thought through to deliver Tier 3 standards of reliability and resilience and to absolutely guarantee secure and reliable power. So you never need to worry about the power available to your colocated equipment.

AERIALS AND ANTENNAS ON THE DATA CENTRE ROOF

The height of the data centre roof allows good line-of-sight communications across London. The data centre space accommodates roof aerial and antenna colocation for local and long distance use. Satellite aerials and antennas can also be mounted, although very large aerials or antennas, over 4 m in diameter on the data centre roof, will require permission from the local authorities, and may also require structural steelwork for safety and stability under wind loading.

FLOOR LOADING

The facility is constructed of concrete and steel to a live load level of 3.5kN/sqm. Most normal loads are well within this level. Exceptional loads can be accommodated with steel spreader bars between structure columns.

Map and Nearby Locations:

80 Clifton St
Stellanor Datacenters Sites
Nearby Facilities

Sites within 15 miles of Stellanor: London City

Distance Site About
0.06 miles Telehouse London Metro
0.07 miles iomart DC2 London
0.15 miles Epsilon London Telephone House
0.17 miles Colt House London
0.19 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.)
0.43 miles Digital Realty: LON1 LON3
0.44 miles Six Degrees: London (Interxion LON3)
0.48 miles Internap London
0.49 miles Digital Realty: LON2
0.77 miles Stellanor: London East
It was originally a Lumen (formerly Level 3) data center.
0.78 miles Verne: London EC1
The data centre is stacked vertically over seven stories and has a Tier III data centre design.
0.87 miles Stellanor: London North
The Stellanor London North data center is one of the most historically significant and well-connected digital hubs in London.
1.00 miles Lumen: Goswell Rd
1.04 miles Lumen: 10 Fleet Pl
1.47 miles AtlasEdge: London LCY001
1.48 miles LeaseWeb: London LON-12
Leaseweb's LON-12 data center is a Tier III facility strategically located in the heart of London’s Docklands, offering approximately 3,700 m² (nearly 40,000 sq ft) of secure technical space.
1.77 miles aptum London
1.84 miles Netwise London Central
Netwise has officially closed its "London Central" data center facility, which was a key part of their operations in London; the closure happened in June 2024,
2.20 miles Carrier-Neutral Data Center Request Dataset
2.20 miles NTT: London LON2
NTT Data has acquired a 26.3-acre plot of land in London, UK, for its eighth data center in the market.
2.31 miles Verizon London UK5
2.47 miles Coreix Docklands
2.84 miles Zenium London One
3.03 miles Infinity SDC HereEast
3.07 miles nLighten: London Citi
In April 2024, nLighten acquired the site from Exa Infrastructure.
3.11 miles AIMES DC3 Mastmaker Road
3.29 miles DRT London (Bonnington House)
3.35 miles Digital Docklands: Cloud House
3.37 miles Echelon LCY10
Echelon’s existing UK facility, LCY10, is a 12,000 sqm (129,000 sq ft)data center located in London’s Docklands.
3.38 miles Centersquare: Docklands LHR2
This facility was previously operated by Cyxtera. Centersquare completed the successful acquisition of Cyxtera and Evoque Data Center Solutions in early 2024.
3.38 miles Keppel GV7 London
The Keppel London GV7 Data Centre is a newly refurbished data centre located in a secure estate within Canary Wharf, London.
3.39 miles TeliaSonera HEX/A
3.40 miles DDCL: London
London’s Docklands site provides approximately 23,160 sq. ft. of net technical space divided into two primary data halls with a combined capacity for over 320 cabinets.
3.40 miles Fibroptic: City Reach, Docklands
Since its opening in 2011, this Tier 2 data centre has provided secure, high-performance colocation at City Reach, Isle of Dogs.
3.40 miles City Reach London Docklands
3.41 miles Lumen London 3 (E India Dock)
3.41 miles Wavenet: Harbour Exchange
3.42 miles Equinix London LD8 Harbour Exchange (Docklands)
Equinix LD8 was known as Telecity Harbour Exchange (HEX) until July 2016. The facility is the second most connected data centre ecosystem in London.
3.43 miles Global Switch: London North
Global Switch London North is a retrofit of the former Financial Times printing works. It first opened as a data center in late 1999, at the height of the "dot-com" boom.
3.43 miles Digital Meridian Gate (215 Marsh)
Located in London Docklands, the Memaco House facility sits in close proximity to the city's many transport links. Memaco House provides 1,630 sq m of well-connected premium customer space over four floors.
3.44 miles Global Switch: London South
Global Switch plans for the construction of a new data center in London Docklands. The new five-floor 290,625sqft data center, known as London South, will expand Global Switch’s London site.
3.50 miles Digital Sovereign House (227 Marsh Wall)
3.50 miles GTT London GS2
3.52 miles Global Switch: London East
Global Switch London East was the largest purpose-built data center in Europe, offering 450,000 sq ft of net technical space across 11 floors (700,000 sq ft gross).
3.53 miles Telehouse London Docklands (North, East, West)
Telehouse operates five data centers in London, four at its Docklands campus in East London, consisting of Telehouse North (opened 1990), Telehouse East (opened 1999), Telehouse West (opened 2010), and Telehouse North Two (opened in 2016.)
3.54 miles Netwise London East (NLE)
Situated in East London near City Airport, the facility is powered entirely by renewable energy. It boasts a highly efficient cooling system, utilizing evaporative technology to achieve a design Power Usage Effectiveness (PUE) of 1.05 (design capacity, not annualized).
3.54 miles Verizon London THW
3.60 miles Telehouse South
Telehouse is expanding its Telehouse South facility in London, UK.
3.69 miles IP House: London
3.71 miles Kao Data: Bidder Street, Newham
The Bidder Street Data Center has received planning approval from local councilors in the Newham area of East London. The facility is expected to begin operations by 2027.
4.20 miles Visa United Kingdom
4.48 miles ADA: East London Docklands
The project's first phase includes a 64,245-square-meter (691,530 sq ft) data center building (LCY01) with a substation.
4.50 miles ADA: LCY02
This building is the second facility in Ada Infrastructure's Docklands campus, East London.
4.63 miles ADA: LCY03
This building is the third facility in Ada Infrastructure's Docklands campus, East London.
5.31 miles Six Degrees: Anchorage Point
The data center was originally established by BIS Ltd (which Six Degrees acquired in 2013) and underwent a significant refurbishment to Tier 3 standards.
6.92 miles Ark: Meridian Park
7.08 miles iomart: DC12 North London
iomart acquired the LDeX Group in December 2018, and what was previously known as the LDeX1 site is now integrated into iomart's network as DC12 North London.
7.42 miles Vantage London I Campus
Vantage's LHR-1 data center spans 430,000 sq ft (40,000 sqm) across two multi-story data centers.
7.44 miles Pure DC: Brent Cross
Pure Data Centres' Brent Cross project has entered its second phase, with the installation of superstructure steelwork now underway for a new building.
7.50 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.
7.50 miles Hyperscale Data Center Request Dataset
Microsoft has started building a new £1 billion data center in Park Royal, west London, with construction scheduled to finish by early 2026.
7.52 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.
7.63 miles Vantage London II
Located in Park Royal in West London, LHR2 is a six-story data center spanning 194,000 square feet (18,000 sqm).
7.69 miles Options West London
8.08 miles Segro Pure Premier Park
Segro, a leading property investor, has joined forces with Pure DC to develop a 30,000 square meter (322,915 square foot) data center in West London.
8.18 miles Equinix London LD3
8.38 miles Ark: Alliance Park
Ark Data Centres acquired the Renault Retail Group’s West London site expecting to start construction of the data centre in 2022. The site will go live in 2025.
8.43 miles Vision247: London
Located in the heart of West London’s media hub, the Vision247 Chiswick Data Centre is a specialized boutique facility tailored for the broadcasting and digital media industries.
8.98 miles Coreix Enfield
8.99 miles Wavenet: Enfield
Wavenet’s Enfield facility is not a stand-alone data centre – it is “Data Hall 4” inside the Virtus LONDON1 campus.
9.01 miles VIRTUS London1 Enfield
9.79 miles Redwire: London
In 2010, Kingmead Homes were appointed Project Managers for Redwire DC’s 45,000 sq ft state-of-the-art data centre in Ealing Broadway, delivered alongside a 165-bed Premier Inn hotel on a 25-year lease.
9.82 miles CapitaLand: Croydon
Croydon is a two-storey colocation data centre located 19 km south of Central London on the Prologis industrial estate.
9.90 miles DRT London (Croydon)
10.27 miles Stratus: Belvedere
Stratus Data Centres plans to construct two Tier III data centers in Belvedere, South East London.
10.90 miles OVH London LON-1
The OVH site of the new London facility was previously owned by a telecoms operator and it is near two substations, providing the required high electrical capacity
11.20 miles NTT London 1 (Dagenham)
The NTT LON1 facility will be 24,000 sqm and 60MW critical IT load once fully developed.
11.25 miles Nscale: Loughton, Essex
Nscale, a prominent UK AI company, will invest $2.5 billion over the next three years to bolster the UK's data center infrastructure.
11.62 miles Infinity Romford North and South
11.65 miles Green Mountain: London East
The parent company of Norwegian-based Green Mountain has acquired Infinity SDC Ltd, taking over a data center in Romford, East London.
11.69 miles Green Mountain: London East Bldg 2
Green Mountain is expanding its London data center footprint for its existing facilities in the capital.
11.81 miles Pulsant: Croydon LN–1
12.07 miles Hyperscale Data Center Request Dataset
As part of a £5 billion two-year commitment to the UK, Google has opened a new data centre in Waltham Cross, Hertfordshire.
12.17 miles Barclays Data Centre
12.18 miles Kao Data: Northolt
Kao Data's Northolt site is in West London, inside the M25. It's easy to reach from central London and Heathrow Airport.
12.39 miles Intercity: Elstree
The Intercity Technology Elstree data center is located on Theobald Street in Borehamwood (Greater London/Hertfordshire border).
12.85 miles Equinix: Hertfordshire Campus (DC01UK)
Equinix has purchased the DC01UK data center campus in Hertfordshire, UK, a site now referred to as the Hertfordshire Campus.
12.91 miles Equinix: Hertfordshire Expansion
13.40 miles Colt: London Hayes LON4
Colt DCS is set to double the size of its planned data center campus in Hayes, West London, after acquiring a fresh parcel of land.
13.41 miles Colt: London 8
This planned facility is part of Colt's London Hayes Campus in West London.
13.42 miles Colt: London 7
This planned facility is part of Colt's London Hayes Campus in West London.
13.45 miles Colt: London 5
This facility is a part of Colt's London Hayes Campus in West London.
13.46 miles Colt: London 6
This planned facility is part of Colt's London Hayes Campus in West London.
13.89 miles Digital Realty: London (Chessington) LHR13
The 50,000 sq ft technical Tier III+ rated Chessington facility has five data halls each of about 1,000 sq m and with 1,440kW Uninterruptible Power Supply (UPS) capacity
13.95 miles VIRTUS Hayes London2
14.04 miles Stellanor: Hounslow
Stellanor acquired the site from Redcentric plc as part of a larger deal involving eight UK data centers.
14.09 miles Ark: Union Park
There are 21 Data Halls of approximately 1250m2 each, to be deployed at approximately 3MW per hall.
14.27 miles Marvel: Hayes
The 1,914 sqm (20,602 sq ft) development will feature data halls, offices, and a single backup generator.
14.30 miles Hyperscale Data Center Request Dataset
Located in the Silverdale Industrial Estate, this new West London facility is a specialized two-story data center dedicated to AWS tape storage.
14.60 miles Ark: Elstree Expansion
14.63 miles Ark: Elstree Campus
Ark Data Centres is developing a massive data center campus in the Elstree/Hertsmere area, close to the A41 and M25.
14.65 miles Verizon London UK4
14.95 miles Rackspace: LON8
15.44 miles Custodian Dartford DA2
15.46 miles Fujitsu: London East (SDC01)
The Fujitsu London East (SDC01) data center is a Tier III certified facility located in Grays, Essex.
15.58 miles VIRTUS: London 14
The Virtus London 14 data center spans two floors, offering 8,600 square meters of white space distributed across six data halls.
15.71 miles Hyperscale Data Center Request Dataset
Google has acquired a plot of land in Essex, UK, previously used as a racetrack and earmarked for residential developments.
15.71 miles CyrusOne London II (Stockley Park)
The London II datacenter was originally built by Infinity SDC.
15.97 miles VIRTUS: London 6
The facility is part of the VIRTUS Stockley Park Campus. LONDON6 comprises over 7,000m² of net technical data center space.
15.99 miles VIRTUS Stockley Park Campus
The VIRTUS Data Centre Campus at Stockley Park is located close to the well known Stockley Park business center. The campus comprises of four facilities and is built with VIRTUS' value of flexibility at the core of the design.
16.09 miles VIRTUS: London 7
The facility is part of the VIRTUS Stockley Park Campus. LONDON7 comprises over 13,000m² of net technical data center space.
16.11 miles VIRTUS: London 8
The facility is part of the VIRTUS Stockley Park Campus. LONDON8 comprises over 7,000m² of net technical data center space.
16.48 miles DRT London (West Drayton)
16.75 miles Exa: Hoddesdon
16.82 miles DataBank: London Heathrow
DataBank’s Felltham data center offers over 2,400 square meters (26,000 sq. ft.) of data center colocation space. The site also features an N+1 power design and access to 6 on-site network providers.
16.82 miles ServerFarm London
The data centre facility was previously known as Michael Perry Technology Centre (MPC) and is located on the Westgate Estate, Staines Road, Feltham.
16.95 miles Lunar 5
Lunar 5 is described as a “premium data-center facility” with 7,400 m² of net customer space across eight data halls.
16.99 miles CapitaLand: Chess Building
In 2023, CapitaLand acquired the building from Digital Realty for $159 million.
17.08 miles Hyperscale Data Center Request Dataset
Epping Forest District Council has granted planning permission for Google’s new data center campus at North Weald Airfield, moving the project forward despite local objections.
17.14 miles Digital Reef: East Havering Campus
Digital Reef aims to construct a massive $5.97 billion (£5.3 billion) data center campus on a 175-acre Green Belt site in London's Havering borough.
17.40 miles Link Park Heathrow Data Center
The proposed three-story facility, situated on 10.75 acres, would have provided 16,850 sqm (181,400 sq ft) of IT space.
17.68 miles West London Tech Park
Applications to develop on Green Belt land have been rejected twice by Buckinghamshire Council, but the new government has indicated that the latest proposal will be reviewed and may be approved.
17.69 miles West London Tech Bldg2
This facility is part of Greystoke's West London Tech Park.
17.86 miles Sequence: Iver, Buckinghamshire
The project aims to redevelop a 16.5-hectare former landfill site located east of the M25 along Slough Road (A4007), just south of the existing Iver Substation.
17.90 miles CorScale: Court Lane, Iver
In December 2024, Corscale Data Centers received approval to develop a new campus in London.
18.08 miles Thorney: Iver DC-A
Thorney Lane LLP has proposed the development of a data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.37 miles Hyperscale Data Center Request Dataset
Amazon Data Services has officially filed a proposal with Buckinghamshire Council to redevelop the Ridgeway Distribution Centre in Iver into a 30,525 sqm data center campus, a move that signals a significant shift from the site's industrial past.
18.51 miles Thorney Lane LLP: Iver Campus
The redevelopment of Thorney Business Park in Iver has evolved into a massive, two-phase masterplan that significantly expands upon the original vision.
18.52 miles Thorney: Iver DC-B
This facility is part of Thorney Lane LLP's data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.53 miles Thorney: Iver DC-C
This facility is part of Thorney Lane LLP's data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.53 miles Segro: Iver Campus
The redevelopment of Thorney Business Park in Iver has evolved into a massive, two-phase masterplan that significantly expands upon the original vision.
18.60 miles Computacenter: Hertfordshire
18.67 miles CyrusOne: LON6 Bldg6
This facility will be part of CyrusOne's LON6 Campus in London.
18.72 miles CyrusOne: LON6 Bldg5
This facility will be part of CyrusOne's LON6 Campus in London.
18.73 miles Thorney: Iver DC-D
This facility is part of Thorney Lane LLP's data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.73 miles Thorney: Iver DC-F
This facility is part of Thorney Lane LLP's data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.74 miles Thorney: Iver DC-E
This facility is part of Thorney Lane LLP's data center campus at Thorney Business Park in North Iver, Buckinghamshire.
18.77 miles CyrusOne: LON6 Bldg4
This facility will be part of CyrusOne's LON6 Campus in London.
18.82 miles CyrusOne: LON6 Bldg3
This facility will be part of CyrusOne's LON6 Campus in London.
18.88 miles CyrusOne: LON6 Bldg2
This facility will be part of CyrusOne's LON6 Campus in London.
18.93 miles CyrusOne: London LON6
CyrusOne is set to expand its presence in the greater London area with a new, sixth data center campus in Iver Heath, Buckinghamshire.
19.06 miles Tritax: London Slough (Phase 1)
Tritax Big Box, a UK real estate investment trust, has acquired a 74-acre site near Heathrow, London, for data center development.
19.07 miles Tritax: London Slough (Phase 2)
Future expansion is being considered for the Tritax Big Box London Slough Campus, with a possible second phase.
19.26 miles Abbots Langley Data Centre
19.28 miles Redhill DC3
The site was previously operated by Digital Realty as LGW12. In 2024, Digital Realty sold its Redhill campus for £64 million ($80m).
19.28 miles ServerChoice: Harlow
19.29 miles LexisNexis Redhill UK
19.30 miles Kao Data: Harlow KLON-01
The KAO datacentre campus is located in the London-Stansted-Cambridge technology corridor.
19.30 miles Redhill DC Campus
Situated in Surrey’s Foxboro Business Park, this 7.8-acre campus spans over 160,000 sq ft (14,865 sqm) across three buildings, with a reported development value of £100 million ($124.9m).
19.30 miles Redhill DC2
The site was previously operated by Digital Realty as LGW11. In 2024, Digital Realty sold its Redhill campus for £64 million ($80m).
19.31 miles Pinewood: Slough Campus
Pinewood Group, owned by Aermont Capital, has revised its 2023 plans for a 1.4 million sqft film studio expansion west of London.
19.35 miles Kao Data: KLON-02
This facility is part of KAO Data's Harlow Campus, located in the London-Stansted-Cambridge technology corridor.
19.39 miles Kao Data: KLON-03
This facility will be a part of KAO Data's Harlow Campus, located in the London-Stansted-Cambridge technology corridor.
19.39 miles Kao Data: KLON-07
This facility will be part of KAO Data's Harlow Campus, located in the London-Stansted-Cambridge technology corridor.
19.39 miles Kao Data: KLON-08
This facility will be part of KAO Data's Harlow Campus, located in the London-Stansted-Cambridge technology corridor.
19.45 miles Kao Data: KLON-04
This facility will be a part of KAO Data's Harlow Campus, located in the London-Stansted-Cambridge technology corridor.
19.62 miles Colt London North: Welwyn Garden City
London, Welwyn Garden City is a carrier neutral facility situated just 35 minutes train journey north of London’s Kings Cross station.
19.62 miles INAP North London
INAP's North London data center is located within Colt's facility on Black Fan Road
19.66 miles ServerChoice: London

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Operating Company

Operated by:

Stellanor specializes in high-performance, flexible data center solutions designed to meet the evolving demands of the digital age. The company provides the critical infrastructure that powers enterprises, IT cloud service providers, academic institutions, and government organizations.

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