Compared to the rest of the Chicagoland market, the Lake Forest region has higher rates, and you'll have to negotiate above asking rent to be in this hot submarket.
In the last 90 days, 13 listings have been made available, which means leases most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 3,640 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are around 3 stories. Most buildings in this area were built in 2001 and are Class A.