The typical asking rate per listing is in the $20's per square foot per year. The Crown Point submarket is going through a a rise in rates. In the last 3 months, the median rate went up $2 per sqft per year. That's a 9% increase in rent.
Compared to the rest of the Chicagoland market, the Crown Point region has less expensive rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 4 listings have come on the market, which means office spaces most likley are leasing quickly. 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 2,220 sqft. Most buildings in this market are around 1 stories. Most buildings in this market were built in 1999 and are Class B.