Most listings are in the $20's per square foot per year. The Crystal Lake region is seeing a decrease in rates. In the last 3 months, the median rate fell $8 per sqft per year. That's a 26% decline in rent.
Compared to the rest of the Chicagoland market, the Crystal Lake region has lower rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 27 listings have come on the market, which means office spaces are probably going fast. You'll want to be prepared to make an offer immediately. 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 2,000 sqft. Most buildings in this market are close to 1 floors. Most buildings in this market were built in 1994 and are Class B.