Joint venture moves to establish hyperscale site in Osaka, Japan
Real asset company ESR and Colt Data Centre Services, a global provider of hyperscale, AI and large enterprise data centre solutions, are to develop the first phase of a 130MW hyperscale data centre site in Minoh City, Osaka, Japan.
The first phase, comprising 65MW, will be designed and built by an ESR–Colt DCS joint venture and operated by Colt DCS. Strategically located in APAC’s second largest data centre market, the campus will support Japan’s accelerating public cloud adoption, digital transformation, and artificial intelligence solutions.
Site preparation work is already underway, with initial data centre building construction scheduled to begin in 2027 and expected to be ready for service in late 2029.
The partnership brings together Colt DCS’s 25 years of development experience in Japan with ESR’s development expertise and supply chain partnerships to provide high-quality data centre solutions for customers. Colt DCS opened its Osaka Keihanna data centre in 2023. ESR’s first hyperscale asset, OS1, within its Cosmosquare data centre campus in Osaka, completed commissioning in 2025.
“Colt DCS has built a strong track record of delivering world-class data centres for our hyperscale customers in Japan. The joint venture with ESR will allow us to accelerate our expansion in Japan, enabling us to support the expansion plans for our global cloud customers and the emerging AI sector,” said Niclas Sanfridsson, chief executive, Colt DCS.
Stuart Gibson, co-founder and co-CEO, ESR, added: “Japan is a key pillar of our data centre strategy, and our joint venture with Colt DCS marks a milestone in our blueprint to deliver next-generation data centre infrastructure that underpins digital growth across the region. This site draws on our deep expertise in data centre development and reflects our commitment to driving long-term economic value and empowering digital transformation for our customers and the communities we serve.”
The Minoh site spans approximately 140,000 square metres of land that ESR-Colt DCS has acquired and rezoned in partnership with local government. The initial centre forms part of the JV’s broader vision for a large-scale data centre site in Minoh City. The master plan for the site improves and extends local road connectivity and provides community amenities such as an international school, local park and retail facilities.
The first phase, comprising 65MW, will be designed and built by an ESR–Colt DCS joint venture and operated by Colt DCS. Strategically located in APAC’s second largest data centre market, the campus will support Japan’s accelerating public cloud adoption, digital transformation, and artificial intelligence solutions.
Site preparation work is already underway, with initial data centre building construction scheduled to begin in 2027 and expected to be ready for service in late 2029.
The partnership brings together Colt DCS’s 25 years of development experience in Japan with ESR’s development expertise and supply chain partnerships to provide high-quality data centre solutions for customers. Colt DCS opened its Osaka Keihanna data centre in 2023. ESR’s first hyperscale asset, OS1, within its Cosmosquare data centre campus in Osaka, completed commissioning in 2025.
“Colt DCS has built a strong track record of delivering world-class data centres for our hyperscale customers in Japan. The joint venture with ESR will allow us to accelerate our expansion in Japan, enabling us to support the expansion plans for our global cloud customers and the emerging AI sector,” said Niclas Sanfridsson, chief executive, Colt DCS.
Stuart Gibson, co-founder and co-CEO, ESR, added: “Japan is a key pillar of our data centre strategy, and our joint venture with Colt DCS marks a milestone in our blueprint to deliver next-generation data centre infrastructure that underpins digital growth across the region. This site draws on our deep expertise in data centre development and reflects our commitment to driving long-term economic value and empowering digital transformation for our customers and the communities we serve.”
The Minoh site spans approximately 140,000 square metres of land that ESR-Colt DCS has acquired and rezoned in partnership with local government. The initial centre forms part of the JV’s broader vision for a large-scale data centre site in Minoh City. The master plan for the site improves and extends local road connectivity and provides community amenities such as an international school, local park and retail facilities.
