Most listings are in the $30's per square foot per year. The Destin submarket is experiencing a an increase in rates. In the last 3 months, the median rate rose $40 per sqft per year.
In the last 90 days, 3 listings have been listed, which means office spaces most likley are going fast. You'll want to be prepared to tour spaces as quick as possible. About 167% of the available space in the Destin 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 on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 1983 and are Class A.