Data Centers

CyrusOne Sterling 9

CyrusOne Sterling 9

  • Sterling, Virginia
  • 700,000 SF
  • Data hall: 400,000 SF
  • critical load: 90 MW

Precast innovation found in all aspects of the data center project.

As a version of CyrusOne’s Cloud Center prototype, the CyrusOne Sterling 9 was created to target Cloud providers looking to build at large scales on a fast, predictable delivery schedule while being affordable per megawatt. To create efficiency in design, a compacted floor plate containing two back-to-back data centers on two floors minimizes floor area allocated to circulation normally needed for multi-tenant data centers. The project fully embraces precast, a humble material, and stretches it to its limit.

The key part of the most prominent façade plays with the typical precast form while celebrating the material. The main façade is pushed and pulled by utilizing a simple C-Panel form to add shadow interest during daylight hours. At each vertical joint of the panel, a recessed vertical cavity is home to a linear light fixture to display the precast at all hours.

The project was designed with modularity in mind to allow for any precast member to be shipped to a prototype's site within the United States and fit perfectly. Focusing on each precast member allowed for the layout orientation to be customizable for each specific project site.  This innovative aspect provides flexibility for the end-users. This concept further evolved when the precaster joined the team and offered suggestions to push precast efficiencies even further.


Corgan is the leader in high-performance data centers, revered by the most advanced clients in the world for breakthrough solutions.

Corgan was the first formalized practice in the industry and, for decades, our team has led the industry with first-to-market innovations.

Our practice is designed around what we call “the speed of trust” — being responsive to client needs while providing a collaborative process of solution-finding. User-centered design and detailed craftsmanship are hallmarks of our work. We routinely meet the evolving challenges of the most demanding clients around the globe — leading with foresight, evidence-based design, and innovative delivery.

Together, we build the infrastructure that powers the world’s most critical technologies. Together we build long-term client relationships.

#1 Data Center Architect in the United States

Building Design + Construction, 2019