On average, listings lease in the $20's per square foot per year. The Cornelius submarket is going through a a rise in rates. In the last 3 months, the median rate increased $1 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Metrolina market, the Cornelius submarket has smaller rates, so you should have no trouble finding a great deal in this depreciated submarket.
In the last 90 days, 5 listings have been posted online, which means spaces are probably leasing quickly. You'll want to be prepared to make an offer immediately. About 20% of the office spaces in the Cornelius 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 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 1,670 sqft. Most buildings in this market are around 2 stories. Most buildings in this market were built in 1999 and are Class A.