Yondr Group, a hyperscale data center developer, owner, and operator, backed by Cathexis Holdings, a Houston, Texas-based investment firm, today announced its plans for a new 40-megawatt data center in Frankfurt (Bischofsheim), Germany, which closely follows the company’s disclosure of a new 100-megawatt facility in Slough (London), United Kingdom, known as YDRSL01, just one month prior. Together these two European projects will require an initial investment of $1bn+ and form the beginning of Yondr’s broader data center development strategy.

Frankfurt (Bischofsheim), Germany – Data Center – Yondr

Yondr is developing a 40-megawatt data center in the city of Bischofsheim, part of the state of Hesse, which is located ~18.5 miles (30 kilometers) southwest of Frankfurt, Germany.


The 387k sqft (36k sqm) plot of land is situated in Tagweide Industrial Park (Gewerbegebiet Tagweide).

Yondr acquired the land directly from the Bischofsheim municipal council for €9.9m, equivalent to €25.5 per sqft (€275 per sqm).


Yondr will develop the data center to LEED Gold certified building standards and target energy efficiency, with a power usage effectiveness (PUE) below 1.3. Furthermore, the company committed to employ 800 to 1,000 people to build the data center and to invest €400m ($453m) in the project, equivalent to €10m per megawatt.

Presently, Yondr is in the process of preparing its building application for the site. At the same time, the company is in discussions with Mainzer Netze, an electric utility company, who will supply power to the site.

Overall, Yondr expects the Bischofsheim data center to be ready for service by Q1 2024.


Yondr competed to purchase the development site with NTT, who also wanted to build a data center at this location. Additionally, online wine retailer VGP (alongside anchor tenant Viacampo) sought to develop a logistics facility on the land, however they also lost out to Yondr.

Slough, United Kingdom – YDRSL01 – Data Center – Yondr

Yondr is developing an initial 30-megawatt data center located in Slough, United Kingdom, which is situated ~20 miles (32 kilometers) west of Central London. Once fully developed, the data center campus will comprise two buildings with a total of 100 megawatts of power capacity. Additionally, the site will house a substation.


Yondr refers to its project in Slough as the Wexham Road Development Site and by its data center name, YDRSL01. Specifically, the site is the former Uxbridge Road Gas Works, at Wexham Road, Slough.

Previously, the site was used as a paint factory, by AkzoNobel, and is now largely vacant. Yondr’s YDRSL01 development will occupy the northern half of the site.

Phase One

Initially, Yondr plans to invest £450m+ ($615m) for phase one of the development, equivalent to £15m per megawatt. This data center’s capacity will be distributed across three 10-megawatt data halls.

Yondr Slough United Kingdom YDRSL01 Data Center

Overall, Yondr expects phase one of the Slough (YDRSL01) data center to be ready for service by January 2023.

Luton (London), United Kingdom – LON-3 – Another Yondr Development?

Yondr notes that it has added a new site to its portfolio, known as LON-3, which has 72 megawatts of deployable critical IT capacity. The site is in the town of Luton, in Bedfordshire, which is located ~34 miles (55 kilometers) north of London.

Yondr Luton London United Kingdom LON-3 Data Center


Yondr’s LON-3 spans a 17.3-acre (7-hectare) site and is located at Jct 11A, Luton, Bedfordshire.


LON-3 will comprise 72 megawatts of critical IT capacity across 280k sqft (26k sqm) of data hall gross internal area. The company will target energy efficiency, with a power usage effectiveness (PUE) below 1.2.

Overall, Yondr expects the Luton (LON-3) data center to be ready for service by Q4 2022.

Yondr Group – Data Center Developments

Beyond its recent announcements in the markets of Frankfurt, Germany and Slough, United Kingdom, Yondr has also detailed development projects in Northern Virginia and India:

Future Data Centers

Yondr notes that its future data center campuses will ultimately span the following 19 global markets:

  • Americas: Northern Virginia (Loudoun County and Prince William County); Querétaro, Mexico; São Paulo, Brazil; Toronto, Canada
  • EMEA: Amsterdam, Netherlands; Berlin, Germany; Frankfurt, Germany; Johannesburg, South Africa; London (Slough), United Kingdom; Paris, France; Prague, Czech Republic
  • Asia-Pacific: Jakarta, Indonesia; Kuala Lumpur, Malaysia; Osaka, Japan
  • India: Mumbai, Hyderabad, Bangalore, Chennai, and Delhi (National Capital Region)
Mary Zhang covers Data Centers for Dgtl Infra, including Equinix (NASDAQ: EQIX), Digital Realty (NYSE: DLR), CyrusOne, CoreSite Realty, QTS Realty, Switch Inc, Iron Mountain (NYSE: IRM), Cyxtera (NASDAQ: CYXT), and many more. Within Data Centers, Mary focuses on the sub-sectors of hyperscale, enterprise / colocation, cloud service providers, and edge computing. Mary has over 5 years of experience in research and writing for Data Centers.


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