Most listings are in the $20's per square foot per year. The Itasca submarket is going through a a boost in rates. In the last 3 months, the median rate increased $5 per sqft per year. That's a 29% rise in rent.
Compared to the rest of the Chicagoland market, the Itasca region has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 15 listings have been made available, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 13% of the office spaces in the Itasca are subleases, so you might be able to find a shorter term or below market rent. 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 3,870 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this region are around 3 stories. Most buildings in this region were built in 1987 and are Class A.