On average, listings lease in the $20's per square foot per year. The Carol Stream region is going through a a boost in rates. In the last 3 months, the median rate went up $29 per sqft per year.
Compared to the rest of the Chicagoland market, the Carol Stream region has greater rates, and you'll need to pay a premium to be in this hot submarket.
In the last 90 days, 10 listings have come on the market, 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 posted, so finding a space for a small business might be tough.
Even though the median size is 5,050 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are approximately 1 stories. Most buildings in this region were built in 1987 and are Class B.