On average, listings lease in the $10's per square foot per year. The Hammond submarket is seeing a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year.
Compared to the rest of the Chicagoland market, the Hammond submarket has lower rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 8 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. About 38% of the available space in the Hammond 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,500 sqft. Most properties in this market are around 2 stories. Most buildings in this region were built in 1962 and are Class B.