The typical asking rate per listing is in the $20's per square foot per year. The Dyer submarket is seeing a an increase in rates. In the last 3 months, the median rate went up $9 per sqft per year. That's a 50% increase in rent.
Compared to the rest of the Chicagoland market, the Dyer submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 2 listings have come on the market, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. About 100% of the available leases in the Dyer are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,350 sqft. Most properties in this market are approximately 2 stories. Most buildings in this region were built in 2000 and are Class B.