On average, listings lease in the $20's per square foot per year. The North Charleston region is experiencing a an increase in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 6% rise in rent.
In the last 90 days, 64 listings have been listed, so you'll want to check back regularly for new listings. About 3% of the available leases in the North Charleston are subleases, so you will probably need to consider the implications of signing a direct lease with the building. 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 2,640 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this area are close to 2 stories. Most buildings in this area were built in 1991 and are Class A.