On average, listings lease in the $30's per square foot per year. The Jacksonville Beach submarket is experiencing a a boost in rates. In the last 3 months, the median rate increased $32 per sqft per year.
In the last 90 days, 5 listings have been posted online, which means leases are probably leasing quickly. You'll want to be prepared to tour spaces as quick as possible. About 20% of the available leases in the Jacksonville Beach are subleases, so you might be able to snag a great spot on a short term. 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 710 sqft. Most buildings in this market are around 2 floors. Most buildings in this market were built in 1985 and are Class B.