The typical asking rate per listing is in the $20's per square foot per year. The Gaston County submarket is seeing a a boost in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 6% increase in rent.
In the last 90 days, 8 listings have been posted online, which means spaces most likley are leasing quickly. You'll want to be prepared to make an offer immediately. About 88% of the available leases 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 available, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 250 sqft. Most buildings in this area are around 1 floors. Most buildings in this market were built in 1980 and are Class B.