Most listings are in the $10's per square foot per year. The Johnston County submarket is going through a decrease in rates. In the last 3 months, the median rate fell $1 per sqft per year. That's a 6% decline in rent.
Compared to the rest of the The Triangle market, the Johnston County region has smaller rates, so you should have no trouble finding a great deal in this discounted region.
In the last 90 days, 29 listings have been made available, which means new availabilities are probably going fast. You'll want to be prepared to tour spaces as quick as possible. 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 1,800 sqft. Most buildings in this area are around 1 floors. Most buildings in this market were built in 2003 and are Class B.