Most listings are in the $10's per square foot per year. The Lake County region is experiencing a a boost in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 15% rise in rent.
In the last 90 days, 24 listings have been listed, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 117% of the office spaces in the Lake County are subleases, so you might be able to find a shorter term or below market rent. 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 2,260 sqft. Most buildings in this area are approximately 1 stories. Most buildings in this area were built in 1986 and are Class A.