Most listings are in the $20's per square foot per year. The Knoxville region is seeing a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 3% decrease in rent.
In the last 90 days, 157 listings have been made available, so you'll want to check back regularly for new listings. About 3% of the listings in the Knoxville are subleases, so you will probably need to consider the implications of signing a direct lease with the building. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,600 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this region are around 1 stories. Most buildings in this area were built in 1920 and are Class Class B.