The typical asking rate per listing is in the $20's per square foot per year. The Lake County region is going through a an increase in rates. In the last 3 months, the median rate went up $4 per sqft per year. That's a 21% increase in rent.
In the last 90 days, 529 listings have been posted online, so you'll want to check back regularly for new listings. About 9% of the available space in the Lake County 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 properties in this market are around 1 stories. Most buildings in this region were built in 1981 and are Class B.