The typical asking rate per listing is in the $0's per square foot per year. The Sumner County submarket is going through a decline in rates. In the last 3 months, the median rate decreased $28 per sqft per year. That's a 100% decline in rent.
In the last 90 days, 2 listings have been made available, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 50% of the available space in the Sumner County are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 sqft. Most buildings in this region are approximately 1 floors. Most buildings in this market were built in 1990 and are Class A.