The typical asking rate per listing is in the $10's per square foot per year. The Johnston County submarket is seeing a a boost in rates. In the last 3 months, the median rate increased $18 per sqft per year.
Compared to the rest of the The Triangle market, the Johnston County region has less expensive rates, so you should have no trouble finding a great deal in this depreciated region.
In the last 90 days, 27 listings have been made available, which means listings most likley are going fast. You'll want to be prepared to make an offer immediately. About 81% of the office spaces in the Johnston County are subleases, so you might be able to snag a great spot on a short term. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
The standard measurement for office space in this area is around 330 sqft. Most properties in this region are approximately 1 floors. Most buildings in this market were built in 2003 and are Class B.