The typical asking rate per listing is in the $20's per square foot per year. The Gaston County region is going through a a rise in rates. In the last 3 months, the median rate rose $3 per sqft per year. That's a 17% increase in rent.
In the last 90 days, 8 listings have been listed, which means new availabilities are probably going fast. You'll want to be prepared to tour spaces as quick as possible. About 275% of the listings in the Gaston County are subleases, so you might be able to sign a shorter term by taking over a previous lease. 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 2,070 sqft. Most properties in this region are approximately 1 floors. Most buildings in this area were built in 1983 and are Class B.