Most listings are in the $10's per square foot per year. The Bartow submarket is going through a an increase in rates. In the last 3 months, the median rate increased $3 per sqft per year. That's a 17% increase in rent.
In the last 90 days, 4 listings have been listed, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. About 25% of the available leases in the Bartow are subleases, so you might be able to find a shorter term or below market rent. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 5,270 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this market are close to 1 floors. Most buildings in this market were built in 1959 and are Class B.