Most listings are in the $10's per square foot per year. The Mount Pleasant submarket is going through a a rise in rates. In the last 3 months, the median rate increased $16 per sqft per year.
In the last 90 days, 4 listings have come on the market, which means new availabilities most likley are leasing quickly. You'll want to be prepared to make an offer immediately. 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 4,080 sqft, there are still 0 office spaces below 2,000 sqft. Most buildings in this market are close to 1 stories. Most buildings in this market were built in 1986 and are Class C.