Most listings are in the $10's per square foot per year. The Duncan submarket is going through a an increase in rates. In the last 3 months, the median rate went up $14 per sqft per year.
In the last 90 days, 2 listings have been made available, which means new availabilities most likley are leasing quickly. You'll want to be prepared to tour spaces as quick as possible. There aren't many listings below 2,000 square feet on the market, so finding a space for a small business might be tough.
Even though the median size is 2,750 sqft, there are still 0 new availabilities below 2,000 sqft. Most buildings in this region are close to 2 floors. Most buildings in this market were built in 1900 and are Class B.