Most listings are in the $70's per square foot per year. The Bluffton region is going through a a boost in rates. In the last 3 months, the median rate increased $79 per sqft per year.
In the last 90 days, 1 listings have been listed, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 100% of the available leases in the Bluffton 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.
Even though the median size is 19,100 sqft, there are still 0 new listings below 2,000 sqft. Most buildings in this area are close to 2 floors. Most buildings in this region were built in 1940 and are Class B.