In the last 90 days, 133 listings have come on the market, so you'll want to check back regularly for new listings. About 106% of the listings in the Charleston are subleases, so you might be able to find a shorter term or below market rent. 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 1,990 sqft. Most buildings in this area are approximately 2 stories. Most buildings in this region were built in 1980 and are Class A.