On average, listings lease in the $10's per square foot per year. The Sebastian County submarket is going through a a boost in rates. In the last 3 months, the median rate went up $17 per sqft per year.
In the last 90 days, 35 listings have been made available, which means spaces are probably going fast. You'll want to be prepared to make an offer immediately. About 100% of the available space in the Sebastian County are subleases, so you might be able to snag a great spot on a short term. 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 1,390 sqft. Most properties in this region are around 1 floors. Most buildings in this area were built in 1990 and are Class B.