On average, listings lease in the $20's per square foot per year. The Charleston County submarket is going through a a rise in rates. In the last 3 months, the median rate went up $29 per sqft per year.
In the last 90 days, 233 listings have been listed, so you'll want to check back regularly for new listings. About 54% of the available space in the Charleston County are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
Even though the median size is 2,620 sqft, there are still 0 new listings below 2,000 sqft. Most properties in this region are around 2 floors. Most buildings in this market were built in 1989 and are Class A.