Shiohama is an eight-story, 230,000 square foot hybrid data center and office building located outside of central Tokyo in the Koto Ward. The building is just a short train ride from many of Tokyo’s central business districts.


Pembroke opportunistically acquired the building in 2000 and redeveloped it on behalf of another Fidelity company, KVH Telecom. We completely overhauled the property into a state-of-the-art high-tech data center with redundant power supply, HVAC, security, optical fiber connectivity, and fire suppression systems. Our team built a great deal of flexibility into the development plan to suit the needs of the rapidly changing technology sector, allowing for floor-by-floor expansion of the data center into short-term speculative office floors as market needs demand.


The key challenge to Pembroke was to convert a 20-year old office building into a state-of-the-art dual functioning data center and Class A office building whose infrastructure, access, and security systems are 100% segregated. Our ability to effectively market each function to third-party users depended on our success in achieving maximum security, functionality, and system redundancy for both uses without adverse impact on either one.


Pembroke leveraged its significant experience in data center development in Latin America and the technical expertise of Fidelity Investments to design this world-class facility. All building systems have integrated fail-safe mechanisms which provide backup and security measures in the event of a simple power outage or a major seismic event. The server rooms provide power and HVAC systems at over 10 times the output of a typical office to support thousands of server racks of financial and IT services customers.

The building is, in reality, two separate buildings in a single building envelope. Infrastructure, access, and security systems of the data center and office components are 100% segregated, providing maximum security and system redundancy to KVH customers.