Most listings are in the $10's per square foot per year. The Matteson region is going through a a rise in rates. In the last 3 months, the median rate went up $19 per sqft per year.
Compared to the rest of the Chicagoland market, the Matteson region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 3 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 367% of the office spaces in the Matteson 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,020 sqft. Most properties in this area are around 6 floors. Most buildings in this market were built in 1975 and are Class B.