Compared to the rest of the Chicagoland market, the Itasca region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 33 listings have been listed, which means office spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 9% of the listings in the Itasca are subleases, so you will probably have to consider a longer term lease. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 15,250 sqft, there are still 0 spaces below 2,000 sqft. Most properties in this area are around 3 stories. Most buildings in this area were built in 1987 and are Class B.