On average, listings lease in the $20's per square foot per year. The Lexington County submarket is going through a a rise in rates. In the last 3 months, the median rate went up $5 per sqft per year. That's a 28% rise in rent.
In the last 90 days, 69 listings have been posted online, so you'll want to check back regularly for new listings. About 3% of the listings in the Lexington County are subleases, so you will probably have to focus your search on direct office leases. There aren't many listings below 2,000 square feet posted, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 1,860 sqft. Most properties in this area are close to 1 floors. Most buildings in this market were built in 1980 and are Class B.