On average, listings lease in the $10's per square foot per year. The Knightdale region is going through a a boost in rates. In the last 3 months, the median rate went up $18 per sqft per year.
Compared to the rest of the The Triangle market, the Knightdale region has smaller rates, so you should have no trouble finding a great deal in this undervalued submarket.
In the last 90 days, 6 listings have come on the market, which means office spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 17% of the office spaces in the Knightdale 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 1,980 sqft. Most properties in this region are close to 2 floors. Most buildings in this area were built in 2000 and are Class B.