Connecting Innovation
and Opportunity

Welcome to Cornerstone, a $750 million,
641-acre mixed-use development in Grayslake,
Illinois, a Northwestern suburb of Chicago.

One of the largest master-planned projects
in the United States, the campus will include
approximately 3,000,000 SF of light industrial,
research-and-development, and logistics space.

growth for companies

Cornerstone will create 9,000 high-quality jobs within one of the Midwest’s leading innovation hubs - right at the heart of Chicago’s transit infrastructure.

  • Proximity to 4 airports, including Waukegan National Airport, O'Hare, and General Mitchell International Airport.

  • 2 miles from Highway 45 and
    6 miles from Interstate 94

  • Served by the Chicago to Fox Lake Metra rail transit line, and the Milwaukee District North Metra with direct access to O'Hare airport.

  • The Prairie Crossing Station is located
    directly adjacent to the development.


Lake County has emerged as one of the region’s most dynamic business and lifestyle communities.

Lake County is a premier destination for corporate headquarters, with 11 of the Fortune 500 and hundreds of fast-growing enterprises placed within a tight-knit business network. With a population of over 700,000, and access to Chicagoland’s 9.4 million, Lake County’s talent pool is among the deepest in the country.


Logistics& Accessibility Advantages

the creators

Alter is one of America’s leading commercial real estate developers, named National Developer of the Year by NAIOP in 2010, and continually ranked as one of National Real Estate Investor’s top five office developers.

Creating value for real estate investors and clients through experience, trust and performance

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