On average, listings lease in the $10's per square foot per year. The Palmetto submarket is experiencing a decrease in rates. In the last 3 months, the median rate fell $2 per sqft per year. That's a 8% decrease in rent.
In the last 90 days, 3 listings have been posted online, 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 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 850 sqft. Most properties in this area are close to 1 stories. Most buildings in this market were built in 0 and are Class B.