On average, listings lease in the $30's per square foot per year. The Douglas County region is going through a an increase in rates. In the last 3 months, the median rate rose $13 per sqft per year. That's a 52% increase in rent.
In the last 90 days, 21 listings have come on the market, which means leases are probably going fast. You'll want to be prepared to make an offer immediately. 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 1,090 sqft. Most buildings in this market are approximately 2 floors. Most buildings in this area were built in 1993 and are Class B.