Most listings are in the $10's per square foot per year. The Fernandina Beach submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $20 per sqft per year. That's a Inf% increase in rent.
In the last 90 days, 3 listings have been posted online, which means listings most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 5,000 sqft, there are still 0 spaces below 2,000 sqft. Most buildings in this region are close to 2 floors. Most buildings in this area were built in 2000 and are Class B.