NTT Hemel Hempstead 4 Data Center (HH4)
Hemel Hempstead, Hertfordshire, United Kingdom
Operated by NTT DATA's Global Data Centers division
About this facility
NTT Hemel Hempstead 4 Data Center (HH4) is a 11.254 MW (est.) data center in Hemel Hempstead, Hertfordshire, United Kingdom operated by NTT DATA's Global Data Centers division, currently operational. Estimated water use is about 128,433 gal/day.
With a total of 9,600 m² of IT space and a maximum of 24 MW IT load, Hemel Hempstead 4 Data Center will offer complete solutions for housing your IT and network systems in a secure, high availability environment. We will provide you with the best possible physical and technical infrastructure supported by N+1 UPS systems, N+1 generator backup, as well as N+1 cooling systems. Hemel Hempstead 4 Data Center will hold multiple certifications and will be connected to major carrier hubs in the Dockla…
Last updated: July 25, 2026
- IT Power Capacity
- 11.254 MWAI est.AI EstimateModeled from leading published research on data center power, water use, and acoustics — including industry efficiency surveys, water-usage-effectiveness studies, and operator sustainability disclosures — calibrated to this facility's verified attributes. Replaced by actual figures as they're published.
- Water Usage
- 128,433 gal/dayAI est.AI EstimateModeled from leading published research on data center power, water use, and acoustics — including industry efficiency surveys, water-usage-effectiveness studies, and operator sustainability disclosures — calibrated to this facility's verified attributes. Replaced by actual figures as they're published.
- Zoning
- Not available
- Distance to Residential
- Not available
- County / District
- Not available
- Region
- Not available
Sources
- PeeringDB · retrieved 2026-07-01
- OpenStreetMap · retrieved 2026-07-02
- AI Estimate · retrieved 2026-07-25
Frequently asked questions
- What is NTT Hemel Hempstead 4 Data Center (HH4)?
- NTT Hemel Hempstead 4 Data Center (HH4) is a 11.254 MW (est.) data center in Hemel Hempstead, Hertfordshire, United Kingdom operated by NTT DATA's Global Data Centers division, currently operational. Estimated water use is about 128,433 gal/day.
- Where is NTT Hemel Hempstead 4 Data Center (HH4) located?
- NTT Hemel Hempstead 4 Data Center (HH4) is located in Hemel Hempstead, Hertfordshire, United Kingdom.
- Who operates NTT Hemel Hempstead 4 Data Center (HH4)?
- NTT Hemel Hempstead 4 Data Center (HH4) is operated by NTT DATA's Global Data Centers division.
- How big is NTT Hemel Hempstead 4 Data Center (HH4)?
- NTT Hemel Hempstead 4 Data Center (HH4) has an IT power capacity of 11.254 MW. This figure is estimated.
- Is NTT Hemel Hempstead 4 Data Center (HH4) operational?
- Yes — NTT Hemel Hempstead 4 Data Center (HH4) is currently operational.
- How much water does NTT Hemel Hempstead 4 Data Center (HH4) use?
- NTT Hemel Hempstead 4 Data Center (HH4) has an estimated water use of about 128,433 gallons per day.