The typical asking rate per listing is in the $30's per square foot per year. The Burke County region is going through a an increase in rates. In the last 3 months, the median rate increased $34 per sqft per year.
In the last 90 days, 21 listings have been listed, which means new listings most likley are going fast. 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.
The standard measurement for office space in this area is around 1,250 sqft. Most buildings in this area are around 2 floors. Most buildings in this area were built in 1983 and are Class A.