ARCO/Murray and Legacy Investing Partner on Downtown Chicago Data Center Conversion
ARCO/Murray has partnered with Legacy Investing to deliver a large-scale data center conversion at 400 S. LaSalle Street in downtown Chicago. Legacy Investing, a DC-based development firm, is overseeing the acquisition, local development execution, and long-term repositioning of the asset.
The project converts the former Cboe Global Markets headquarters into a 380,000 SF, data center–ready facility, designed to support high-capacity, mission critical operations in an urban environment. Data center demand in Chicago has accelerated as cloud providers and enterprises seek low-latency capacity with dense fiber connectivity, making 400 S. LaSalle a strategically positioned site for redevelopment.
The scope includes the full redevelopment of all seven floors, as well as the roof and basement, supported by comprehensive base-building upgrades across structural, electrical, mechanical, and life-safety systems. Upon completion, the facility will deliver 33 MW of utility power and up to 23.5 MW of IT load capacity, engineered to support enterprise and high-density deployments. The building will be engineered to accommodate a future expansion to 50 MW of utility power, including dedicated space planning for the additional systems and equipment required to scale.
With construction well underway, the facility is scheduled for delivery in late 2026 and represents a significant investment in downtown Chicago’s digital infrastructure.
About Legacy Investing:
We’re not traditional landlords or conventional finance people. We’re problem solvers. Service providers. Innovators. We develop, own and operate the infrastructure for modern life, including data centers, logistics and life sciences facilities. With deep expertise in how technology and data are transforming these sectors we are able to uniquely address our tenants’ real estate challenges. We are Legacy Investing.
About ARCO/Murray:
ARCO/Murray is a nationally recognized design-build general contractor specializing in commercial, industrial, and infrastructure construction for Fortune 500 companies and growing businesses alike. With more than 6,000 projects completed nationwide and $5.5 billion in annual revenue, we bring unmatched experience and industry leadership to every project. Our mission critical capabilities are designed to scale in support of evolving client needs nationwide.