Compared to the rest of the Chicagoland market, the Valparaiso submarket has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 3 listings have been listed, which means spaces most likley are going fast. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,450 sqft. Most buildings in this market are approximately 2 stories. Most buildings in this region were built in 1979 and are Class B.