On average, listings lease in the $20's per square foot per year. The Jacksonville submarket is going through a a rise in rates. In the last 3 months, the median rate rose $2 per sqft per year. That's a 10% increase in rent.
Compared to the rest of the Jacksonville market, the Jacksonville region has lower rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 331 listings have been made available, so you'll want to check back regularly for new listings. About 2% of the office spaces in the Jacksonville are subleases, so you will probably have to consider a longer term lease. 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 3,510 sqft, there are still 0 new availabilities below 2,000 sqft. Most properties in this area are approximately 2 stories. Most buildings in this market were built in 1983 and are Class B.