On average, listings lease in the $10's per square foot per year. The Hanahan submarket is experiencing a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 7% decrease in rent.
In the last 90 days, 4 listings have been made available, which means leases most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 25% of the available space in the Hanahan 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 available, so finding a space for a small business might be tough.
Even though the median size is 3,190 sqft, there are still 0 listings below 2,000 sqft. Most properties in this area are around 3 stories. Most buildings in this region were built in 1980 and are Class B.