Most listings are in the $20's per square foot per year. The Hamilton County region is going through a an increase in rates. In the last 3 months, the median rate went up $3 per sqft per year. That's a 14% rise in rent.
In the last 90 days, 62 listings have come on the market, so you'll want to check back regularly for new listings. About 6% of the available leases in the Hamilton 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 posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 2,160 sqft. Most properties in this region are close to 1 floors. Most buildings in this region were built in 1956 and are Class Class B.