Most listings are in the $10's per square foot per year. The James Island submarket is seeing a an increase in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 1 listings have come on the market, which means leases most likley are going fast. You'll want to be prepared to make an offer immediately. 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 market were built in 1962 and are Class C.