On average, listings lease in the $20's per square foot per year. The Cornelius region is experiencing a a boost in rates. In the last 3 months, the median rate went up $1 per sqft per year. That's a 6% increase in rent.
Compared to the rest of the Metrolina market, the Cornelius region has lower rates, so you should have no trouble finding a great deal in this undervalued region.
In the last 90 days, 5 listings have been made available, which means new availabilities most likley are going fast. You'll want to be prepared to make an offer immediately. About 20% of the available leases 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 posted, 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 properties in this region are close to 2 stories. Most buildings in this market were built in 1999 and are Class A.