Most listings are in the $40's per square foot per year. The Boone County region is seeing a decrease in rates. In the last 3 months, the median rate decreased $7 per sqft per year. That's a 13% decrease in rent.
In the last 90 days, 8 listings have been listed, which means leases most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 25% of the available leases in the Boone 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,090 sqft, there are still 0 listings below 2,000 sqft. Most properties in this region are close to 1 stories. Most buildings in this area were built in 1925 and are Class B.