On average, listings lease in the $20's per square foot per year. The Hilton Head Island region is going through a a boost in rates. In the last 3 months, the median rate rose $7 per sqft per year. That's a 33% increase in rent.
In the last 90 days, 8 listings have come on the market, which means office spaces might be going fast. You'll want to be prepared to tour spaces as quick as possible. 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 320 sqft. Most buildings in this region are approximately 3 floors. Most buildings in this area were built in 1986 and are Class A.