On average, listings lease in the $10's per square foot per year. The Duncan submarket is experiencing a a boost in rates. In the last 3 months, the median rate rose $14 per sqft per year.
In the last 90 days, 2 listings have been listed, which means listings are probably leasing quickly. You'll want to be prepared to make an offer immediately. There aren't many listings below 2,000 square feet available, so finding a space for a small business might be tough.
Even though the median size is 2,750 sqft, there are still 0 office spaces below 2,000 sqft. Most properties in this region are around 2 stories. Most buildings in this area were built in 1900 and are Class B.