On average, listings lease in the $20's per square foot per year. The Valparaiso submarket is seeing a a boost in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 14% rise in rent.
Compared to the rest of the Chicagoland market, the Valparaiso region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 14 listings have been listed, which means new availabilities might be going fast. You'll want to be prepared to make an offer immediately. About 7% of the available leases in the Valparaiso are subleases, so you will probably need to sign a longer term lease with the landlord directly. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,800 sqft. Most buildings in this area are around 2 floors. Most buildings in this region were built in 1977 and are Class B.