Most listings are in the $30's per square foot per year. The Knox County submarket is experiencing a a boost in rates. In the last 3 months, the median rate went up $14 per sqft per year. That's a 65% rise in rent.
In the last 90 days, 1 listings have been made available, which means office spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. 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 150 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this market were built in 1958 and are Class B.