Lendlease and Princeton Digital Group (PDG) are advancing one of the largest and most advanced data center campuses in Japan through the TY1 hyperscale development in Greater Tokyo. Located in Saitama City, about 30 km north of central Tokyo, the project represents a $1 billion investment. TY1 data center is being delivered in phases as a 96-100 MW AI-ready campus spanning over 60,000 m2, purpose-built to meet surging hyperscaler and AI infrastructure demand. Construction began in 2022, with the first 48 MW phase already completed and launched. This milestone positioned TY1 as a flagship data center facility in Japan’s rapidly expanding digital infrastructure market. Japan’s digital infrastructure market is also seeing new investments in co-located power-data center facilities such as Mitsubishi and JFE’s data center in Ohgishima.
Project Timeline
2021–2022:
- Land acquisition and project planning
- JV formation between Lendlease and PDG
2022:
- Construction begins on Phase 1
2024–2025:
- Phase 1 (48 MW) completed and operational
- Initial hyperscaler deployments
2025–2026:
- Expansion phases underway
- Additional capacity ramp-up
Beyond 2026:
- Full campus build-out toward 100 MW
- Potential further scaling depending on AI demand
TY1 Data Center Campus Project Factsheet
Location: Saitama City
Developer: Lendlease and Princeton Digital Group
Investment value: US$1 billion
Total capacity: 96-100 MW
Site size: 60,000 m2
Phasing: Multi-phase for a hyperscale campus
First phase capacity: 48 MW (completed and operational)
Status: Phase 1 operational, expansion ongoing
Project Team
Lendlease – Lead developer, capital partner, delivery platform
Princeton Digital Group – Operator, hyperscale specialist, tenant engagement
Lendlease Data Centre Partners (DCP) – Investment vehicle backing development

First Phase of the Largest Data Center in Japan Completed
Reported March 29, 2024 – Construction has been completed on the first phase of the largest data center campus in Japan. Undertaken by Lendlease and Princeton Digital Group (PDG), the first phase of the 96 MW TY1 is located 30 kilometers north of central Tokyo in Saitama City. The TY1 campus is going to cover 60,000 square meters in one of the major commercial centers in the Greater Tokyo area.
The first phase included the core and shell construction of a six-story facility, expected to supply 48MW of IT capacity. Lendlease has injected around US$500 million and PDG has invested US$1 billion across the life of the project. Additionally, TY1 has been developed and constructed on a built-to-suit basis for PDG. The project is expected to be ready for service in the fourth quarter this year.
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Sustainability at the Largest Data Center in Japan
TY1 has been designed to serve high density rack deployments. These will cater to the infrastructure demands of some of the world’s largest AI and cloud companies. Additionally, a core part of the design and construction of TY1 has been sustainability. 100 per cent of Scope 1 and 2 emissions attributable to construction works have been mitigated through the use of verified carbon credits and renewable energy certificates. Furthermore, the site utilizes stored rainwater for gardens and toilets, and the garden features only native or adapted plant species. TY1 is targeting LEED certification (LEED v4 BD +C Core & Shell).
“The surge in demand for AI has brought about a pivotal change in the data center landscape. Further, as one of the fastest-growing data center providers, our USD 1 billion investment in TY1 demonstrates our commitment to Japan as part of our strong Pan-Asia growth strategy,” PDG said in a statement.
Also Read:Meta to construct a new data center campus in Jeffersonville, Indiana.
“As one of Asia’s fastest-growing data center markets, Japan is the ideal location to deliver our first Lendlease Data Centre Partners facility. This is while supporting the Japanese Government’s efforts to enhance the country’s data capabilities and digital resilience,” Lendlease said.
Who the project team are
PDG operates data centers in China, Singapore, India, Indonesia, Malaysia, and now, Japan. Lendlease is an integrated real estate group with operations in Australia, Asia, Europe, and the Americas.
Amazon’s US$15 Billion Data Center Investment in Japan
In other news, Amazon has announced earlier this year they will be spending nearly US$15 billion in the next three years for the development of data centers in Japan. AWS will expand its infrastructure capacity in Tokyo and Osaka, the two cities where its local data centers are based. Moreover, 2021, the cloud giant disclosed that those data centers support hundreds of thousands of local customers.

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The Amazon unit first moved into the Japanese cloud market in 2011 by opening an AWS region in Tokyo. A region is a cluster of availability zones, which in turn each include one or more data centers. Additionally, AWS’ Tokyo data center cluster started out with two availability zones. It then received a third in 2012 and a fourth six years later.
