Most listings are in the $280's per square foot per year. The Libertyville region is going through a a rise in rates. In the last 3 months, the median rate increased $265 per sqft per year. That's a 1,386% increase in rent.
Compared to the rest of the Chicagoland market, the Libertyville submarket has more expensive rates, and you'll have to negotiate above asking rent to be in this hot region.
In the last 90 days, 3 listings have come on the market, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. 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 840 sqft. Most buildings in this region are around 2 stories. Most buildings in this area were built in 1997 and are Class B.