The typical asking rate per listing is in the $10's per square foot per year. The Merrillville submarket is seeing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% rise in rent.
Compared to the rest of the Chicagoland market, the Merrillville region has smaller rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 17 listings have been made available, which means new availabilities are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 1,650 sqft. Most properties in this region are around 1 stories. Most buildings in this area were built in 1983 and are Class B.