The typical asking rate per listing is in the $20's per square foot per year. The Dyer submarket is going through a a rise in rates. In the last 3 months, the median rate went up $22 per sqft per year.
Compared to the rest of the Chicagoland market, the Dyer region has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 3 listings have been posted online, which means office spaces most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. 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 2,600 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this area are close to 2 stories. Most buildings in this market were built in 2000 and are Class A.