Most listings are in the $20's per square foot per year. The Horry County region is experiencing a an increase in rates. In the last 3 months, the median rate rose $1 per sqft per year. That's a 7% rise in rent.
In the last 90 days, 37 listings have been made available, which means leases are probably 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.
The standard measurement for office space in this area is around 1,500 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 2000 and are Class A.