The typical asking rate per listing is in the $20's per square foot per year. The Chattanooga region is going through a a boost in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 14% rise in rent.
In the last 90 days, 56 listings have been listed, so you'll want to check back regularly for new listings. About 7% of the office spaces in the Chattanooga 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.
The standard measurement for office space in this area is around 2,160 sqft. Most properties in this market are close to 1 floors. Most buildings in this market were built in 1958 and are Class Class B.