Cornerstone is a 640-acre mixed-use environment in Grayslake, IL, that brings together offices, light industrial, R&D, luxury residences, shopping, and marquee restaurants in the heart of Lake County.


The Cornerstone plan is a vision of growth that brings the world to your front door by creating a luxurious, sustainable environment where you can work, shop, eat and live in harmony with nature. Cornerstone is designed to minimize the impact of growth to the Lake County community by relieving commute times, supporting our schools, raising the average income by 45% and providing a financial engine for the area that enhances its quality of life.

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