Most listings are in the $10's per square foot per year. The James Island region is going through a an increase in rates. In the last 3 months, the median rate went up $16 per sqft per year.
In the last 90 days, 1 listings have come on the market, which means spaces might be leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,700 sqft, there are still 0 listings below 2,000 sqft. Most buildings in this region were built in 1962 and are Class C.